EPSON SED1355

Epson Research and Development
Vancouver Design Center
Page 3
Customer Support Information
Comprehensive Support Tools
Seiko Epson Corp. provides to the system designer and computer OEM manufacturer a complete set
of resources and tools for the development of graphics systems.
Evaluation / Demonstration Board
• Assembled and fully tested graphics evaluation board with installation guide and schematics.
• To borrow an evaluation board, please contact your local Seiko Epson Corp. sales representative.
Chip Documentation
• Technical manual includes Data Sheet, Application Notes, and Programmer’s Reference.
Software
• OEM Utilities.
• User Utilities.
• Evaluation Software.
• To obtain these programs, contact Application Engineering Support.
Application Engineering Support
Engineering and Sales Support is provided by:
Japan
Seiko Epson Corporation
Electronic Devices Marketing Division
421-8, Hino, Hino-shi
Tokyo 191-8501, Japan
Tel: 042-587-5812
Fax: 042-587-5564
http://www.epson.co.jp
Hong Kong
Epson Hong Kong Ltd.
20/F., Harbour Centre
25 Harbour Road
Wanchai, Hong Kong
Tel: 2585-4600
Fax: 2827-4346
TECHNICAL MANUAL
Issue Date: 99/10/06
North America
Epson Electronics America, Inc.
150 River Oaks Parkway
San Jose, CA 95134, USA
Tel: (408) 922-0200
Fax: (408) 922-0238
http://www.eea.epson.com
Taiwan, R.O.C.
Epson Taiwan Technology
& Trading Ltd.
10F, No. 287
Nanking East Road
Sec. 3, Taipei, Taiwan, R.O.C.
Tel: 02-2717-7360
Fax: 02-2712-9164
Europe
Epson Europe Electronics GmbH
Riesstrasse 15
80992 Munich, Germany
Tel: 089-14005-0
Fax: 089-14005-110
Singapore
Epson Singapore Pte., Ltd.
No. 1
Temasek Avenue #36-00
Millenia Tower
Singapore, 039192
Tel: 337-7911
Fax: 334-2716
SED1355
X23A-Q-001-09
Epson Research and Development
Vancouver Design Center
Page 5
Table of Contents
INTRODUCTION
SED1355 Embedded RAMDAC LCD/CRT Controller Product Brief
SPECIFICATION
SED1355 Hardware Functional Specification
PROGRAMMER’S REFERENCE
SED1355 Programming Notes and Examples
SED1355 Register Summary
UTILITIES
1355CFG Configuration Program
1355SHOW Demonstration Program
1355SPLT Display Utility
1355VIRT Display Utility
1355PLAY Diagnostic Utility
1355BMP Demonstration Program
1355PWR Software Suspend Power Sequencing Utility
DRIVERS
SED1355 Windows® CE Display Drivers
EVALUATION
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
SDU1355-D9000 Evaluation Board User Guide
APPLICATION NOTES
Power Consumption
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Interfacing to the PC Card Bus
Interfacing to the NEC VR4102/VR4111™ Microprocessor
Interfacing to the Motorola MPC821 Microprocessor
Interfacing to the NEC VR4121™ Microprocessor
Interfacing to the Toshiba MIPS TX3912 Processor
Interfacing to the NEC V832 Microprocessor
TECHNICAL MANUAL
Issue Date: 99/10/06
SED1355
X23A-Q-001-09
Page 6
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-Q-001-09
TECHNICAL MANUAL
Issue Date: 99/10/06
ENERGY
S AV I N G
GRAPHICS
EPSON
SED1355
SED1355 EMBEDDED RAMDAC LCD/CRT CONTROLLER
October 1998
■ DESCRIPTION
The SED1355 is a color/monochrome LCD/CRT graphics controller interfacing to a wide range of CPUs and display
devices. The SED1355 architecture is designed to meet the low cost, low power requirements of the embedded
markets, such as Mobile Communications, Hand-Held PCs, and Office Automation.
The SED1355 supports multiple CPUs, all LCD panel types, CRT, and additionally provides a number of
differentiating features. Products requiring a “Portrait” mode display can take advantage of the Hardware Portrait
Mode feature. Simultaneous, Virtual and Split Screen Display are just some of the display modes supported, while
the Hardware Cursor, Ink Layer, and the Memory Enhancement Registers offer substantial performance benefits.
These features, combined with the SED1355’s Operating System independence, make it an ideal display solution for
a wide variety of applications.
■ FEATURES
Memory Interface
• 16-bit EDO-DRAM or FPM-DRAM interface.
• Memory size options:
512K bytes using one 256K×16 device.
2M bytes using one 1M×16 device.
• Addressable as a single linear address space.
CPU Interface
• Supports the following interfaces:
Hitachi SH-4.
Hitachi SH-3.
Motorola M68K.
Philips MIPS PR31500/PR31700.
Toshiba MIPS TX3912.
Motorola Power PC MPC821.
NEC MIPS VR4102/VR4111.
Epson E0C33.
PC Card (PCMCIA).
StrongARM (PC Card).
ISA bus.
MPU bus interface with programmable READY.
• CPU write buffer.
Display Support
• 4/8-bit monochrome passive LCD interface.
• 4/8/16-bit color passive LCD interface.
• Single-panel, single-drive displays.
• Dual-panel, dual-drive displays.
• Direct support for 9/12-bit TFT/D-TFD; 18-bit TFT/D-TFD
is supported up to 64K color depth (16-bit data).
• Embedded RAMDAC with direct analog CRT drive.
• Simultaneous display of CRT and passive or TFT/D-TFD
panels.
• Maximum resolution of 800x600 pixels at a color
depth of 16 bpp.
X23A-C-002-13
Display Modes
• 1/2/4/8/16 bit-per-pixel (bpp) support on LCD/CRT.
• Up to 16 shades of gray using FRM on monochrome
passive LCD panels.
• Up to 4096 colors on passive LCD panels.
• Up to 64K colors on active matrix TFT/D-TFD LCD
panels and CRT in 16 bpp modes.
• Split Screen Display: allows two different images to be
simultaneously viewed on the same display.
• Virtual Display Support: displays images larger than the
display size through the use of panning.
• Double Buffering/multi-pages: provides smooth
animation and instantaneous screen update.
• Hardware Portrait Mode: direct hardware 90° rotation of
display image for portrait mode display.
• Acceleration of screen updates by allocating full
display memory bandwidth to CPU.
• Hardware 64x64 pixel 2-bit cursor or full screen
2-bit ink layer.
Clock Source
• Single clock input for both pixel and memory clocks.
• Memory clock can be input clock or (input clock/2),
providing flexibility to use CPU bus clock as input.
• Pixel clock can be memory clock or (memory clock/2) or
(memory clock/3) or (memory clock/4).
Power Down Modes
• Software power save mode.
• LCD power sequencing.
General Purpose IO Pins
• Up to 3 General Purpose IO pins are available.
Operating Voltage
• 2.7 volts to 5.5 volts.
Package
• 128-pin QFP15 surface mount package.
1
GRAPHICS
SED1355
■ SYSTEM BLOCK DIAGRAM
EDO-DRAM
FPM-DRAM
Analog Out
CPU
Data and
Control Signals
SED1355
CRT
Digital Out
Actual Size
Flat Panel
CONTACT YOUR SALES REPRESENTATIVE FOR THESE
COMPREHENSIVE DESIGN TOOLS:
• SED1355 Technical Manual
• SDU1355 Evaluation Boards
• Windows CE Display Driver
• CPU Independent Software Utilities
Japan
Seiko Epson Corporation
Electronic Devices Marketing Division
421-8, Hino, Hino-shi
Tokyo 191-8501, Japan
Tel: 042-587-5812
Fax: 042-587-5564
http://www.epson.co.jp
Hong Kong
Epson Hong Kong Ltd.
20/F., Harbour Centre
25 Harbour Road
Wanchai, Hong Kong
Tel: 2585-4600
Fax: 2827-4346
FOR SYSTEM INTEGRATION SERVICES
FOR WINDOWS® CE CONTACT:
Epson Research & Development, Inc.
Suite #320 - 11120 Horseshoe Way
Richmond, B.C., Canada V7A 5H7
Tel: (604) 275-5151
Fax: (604) 275-2167
Email: [email protected]
http://www.erd.epson.com
North America
Epson Electronics America, Inc.
150 River Oaks Parkway
San Jose, CA 95134, USA
Tel: (408) 922-0200
Fax: (408) 922-0238
http://www.eea.epson.com
Taiwan, R.O.C.
Epson Taiwan Technology
& Trading Ltd.
10F, No. 287
Nanking East Road
Sec. 3, Taipei, Taiwan, R.O.C.
Tel: 02-2717-7360
Fax: 02-2712-9164
Europe
Epson Europe Electronics GmbH
Riesstrasse 15
80992 Munich, Germany
Tel: 089-14005-0
Fax: 089-14005-110
Singapore
Epson Singapore Pte., Ltd.
No. 1
Temasek Avenue #36-00
Millenia Tower
Singapore, 039192
Tel: 337-7911
Fax: 334-2716
Copyright © 1998 Epson Research and Development, Inc. All Rights Reserved.
VDC
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in evaluating Seiko Epson/
EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any representation that the contents of this document are
accurate or current. The Programs/Technologies described in this document may contain material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. Microsoft, Windows, and the Windows CE Logo are registered trademarks of Microsoft Corporation.
2
X23A-C-002-13
SED1355 Embedded RAMDAC LCD/CRT Controller
Hardware Functional Specification
Document Number: X23A-A-001-11
Copyright © 1998, 1999 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 3
Table of Contents
1
2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.1
Scope
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.2
Overview Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.1
Memory Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2
CPU Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.3
Display Support
2.4
Display Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.5
Display Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.6
Clock Source
2.7
Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3
Typical System Implementation Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4
Internal Description
4.1
4.2
5
6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Block Diagram Showing Datapaths . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Block Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2.1
Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2.2
Host Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2.3
CPU R/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2.4
Memory Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2.5
Display FIFO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2.6
Cursor FIFO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2.7
Look-Up Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2.8
CRTC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2.9
LCD Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2.10
DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2.11
Power Save . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2.12
Clocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.1
Pinout Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.2
Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.2.1
Host Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.2.2
Memory Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.2.3
LCD Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.2.4
CRT Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.2.5
Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.3
Summary of Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.4
Multiple Function Pin Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.5
CRT Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
D.C. Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 4
7
Epson Research and Development
Vancouver Design Center
A.C. Characteristics
7.1
CPU Interface Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
7.1.1
SH-4 Interface Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
7.1.2
SH-3 Interface Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
7.1.3
MC68K Bus 1 Interface Timing (e.g. MC68000) . . . . . . . . . . . . . . . . . . . . . . . .45
7.1.4
MC68K Bus 2 Interface Timing (e.g. MC68030) . . . . . . . . . . . . . . . . . . . . . . . .47
7.1.5
PC Card Interface Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
7.1.6
Generic Interface Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
7.1.7
MIPS/ISA Interface Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
7.1.8
Philips Interface Timing (e.g. PR31500/PR31700) . . . . . . . . . . . . . . . . . . . . . . .55
7.1.9
Toshiba Interface Timing (e.g. TX3912) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
7.1.10
Power PC Interface Timing (e.g. MPC8xx, MC68040, Coldfire) . . . . . . . . . . . . . . . .61
7.2
Clock Input Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
7.3
Memory Interface Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
7.3.1
EDO-DRAM Read/Write/Read-Write Timing . . . . . . . . . . . . . . . . . . . . . . . . . .64
7.3.2
EDO-DRAM CAS Before RAS Refresh Timing . . . . . . . . . . . . . . . . . . . . . . . .67
7.3.3
EDO-DRAM Self-Refresh Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
7.3.4
FPM-DRAM Read/Write/Read-Write Timing . . . . . . . . . . . . . . . . . . . . . . . . . .70
7.3.5
FPM-DRAM CAS Before RAS Refresh Timing . . . . . . . . . . . . . . . . . . . . . . . .73
7.3.6
FPM-DRAM Self-Refresh Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
7.4
Power Sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
7.4.1
LCD Power Sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
7.4.2
Power Save Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
7.5
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Display Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
7.5.1
4-Bit Single Monochrome Passive LCD Panel Timing . . . . . . . . . . . . . . . . . . . . .77
7.5.2
8-Bit Single Monochrome Passive LCD Panel Timing . . . . . . . . . . . . . . . . . . . . .79
7.5.3
4-Bit Single Color Passive LCD Panel Timing . . . . . . . . . . . . . . . . . . . . . . . . .81
7.5.4
8-Bit Single Color Passive LCD Panel Timing (Format 1) . . . . . . . . . . . . . . . . . . .83
7.5.5
8-Bit Single Color Passive LCD Panel Timing (Format 2) . . . . . . . . . . . . . . . . . . .85
7.5.6
16-Bit Single Color Passive LCD Panel Timing . . . . . . . . . . . . . . . . . . . . . . . . .87
7.5.7
8-Bit Dual Monochrome Passive LCD Panel Timing . . . . . . . . . . . . . . . . . . . . . .89
7.5.8
8-Bit Dual Color Passive LCD Panel Timing . . . . . . . . . . . . . . . . . . . . . . . . . .91
7.5.9
16-Bit Dual Color Passive LCD Panel Timing . . . . . . . . . . . . . . . . . . . . . . . . . .93
7.5.10
16-Bit TFT/D-TFD Panel Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
7.5.11
CRT Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98
Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
8.1
Register Mapping
8.2
Register Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
8.2.1
Revision Code Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
8.2.2
Memory Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
8.2.3
Panel/Monitor Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
8.2.4
Display Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
9
Page 5
8.2.5
Clock Configuration Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
8.2.6
Power Save Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
8.2.7
Miscellaneous Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
8.2.8
Look-Up Table Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
8.2.9
Ink/Cursor Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Display Buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
9.1
Image Buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
9.2
Ink/Cursor Buffers
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
9.3
Half Frame Buffer
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
10 Display Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
10.1 Display Mode Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
10.2 Image Manipulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127
11 Look-Up Table Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128
11.1 Monochrome Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128
11.2 Color Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130
12 Ink/Cursor Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134
12.1 Ink/Cursor Buffers
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134
12.2 Ink/Cursor Data Format
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134
12.3 Ink/Cursor Image Manipulation . . . . . . . . . . . . . . . . . . . . . . . . . . .135
12.3.1
Ink Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
12.3.2
Cursor Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
13 SwivelView™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136
13.1 Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136
13.2 Image Manipulation in SwivelView . . . . . . . . . . . . . . . . . . . . . . . . . .137
13.3 Physical Memory Requirement
13.4 Limitations
. . . . . . . . . . . . . . . . . . . . . . . . . . .138
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .139
14 Clocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140
14.1 Maximum MCLK: PCLK Ratios . . . . . . . . . . . . . . . . . . . . . . . . . . .140
14.2 Frame Rate Calculation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142
14.3 Bandwidth Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144
15 Power Save Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .148
16 Mechanical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 6
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 7
List of Tables
Table 5-1:
Host Interface Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 5-2:
Memory Interface Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 5-2:
LCD Interface Pin Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 5-3:
CRT Interface Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 5-4:
Miscellaneous Interface Pin Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 5-5:
Summary of Power On/Reset Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 5-6:
CPU Interface Pin Mapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 5-7:
Memory Interface Pin Mapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 5-8:
LCD Interface Pin Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 6-1:
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table 6-2:
Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table 6-3:
Electrical Characteristics for VDD = 5.0V typical . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 6-4:
Electrical Characteristics for VDD = 3.3V typical . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Table 6-5:
Electrical Characteristics for VDD = 3.0V typical . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Table 7-1:
SH-4 Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Table 7-2:
SH-3 Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Table 7-3:
MC68000 Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table 7-4:
MC68030 Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Table 7-5:
PC Card Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Table 7-6:
Generic Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Table 7-7:
MIPS/ISA Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Table 7-8:
Philips Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Table 7-9:
Clock Input Requirements for BUSCLK using Philips local bus. . . . . . . . . . . . . . . . . . . 57
Table 7-10: Toshiba Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Table 7-11: Clock Input Requirements for BUSCLK using Toshiba local bus . . . . . . . . . . . . . . . . . . 60
Table 7-12: Power PC Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Table 7-13: Clock Input Requirements for CLKI divided down internally (MCLK = CLKI/2) . . . . . . . . . 63
Table 7-14: Clock Input Requirements for CLKI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Table 7-15: EDO-DRAM Read/Write/Read-Write Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Table 7-16: EDO-DRAM CAS Before RAS Refresh Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Table 7-17: EDO-DRAM Self-Refresh Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Table 7-18: FPM-DRAM Read/Write/Read-Write Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Table 7-19: FPM-DRAM CAS Before RAS Refresh Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Table 7-20: FPM-DRAM CBR Self-Refresh Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Table 7-21: LCD Panel Power Off/ Power On. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Table 7-22: Power Save Status and Local Bus Memory Access Relative to Power Save Mode . . . . . . . . . 76
Table 7-23: 4-Bit Single Monochrome Passive LCD Panel A.C. Timing . . . . . . . . . . . . . . . . . . . . . 78
Table 7-24: 8-Bit Single Monochrome Passive LCD Panel A.C. Timing . . . . . . . . . . . . . . . . . . . . . 80
Table 7-25: 4-Bit Single Color Passive LCD Panel A.C. Timing . . . . . . . . . . . . . . . . . . . . . . . . . 82
Table 7-26: 8-Bit Single Color Passive LCD Panel A.C. Timing (Format 1) . . . . . . . . . . . . . . . . . . . 84
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 8
Epson Research and Development
Vancouver Design Center
Table 7-27: 8-Bit Single Color Passive LCD Panel A.C. Timing (Format 2) . . . . . . . . . . . . . . . . . . .86
Table 7-28: 16-Bit Single Color Passive LCD Panel A.C. Timing. . . . . . . . . . . . . . . . . . . . . . . . .88
Table 7-29: 8-Bit Dual Monochrome Passive LCD Panel A.C. Timing . . . . . . . . . . . . . . . . . . . . . .90
Table 7-30: 8-Bit Dual Color Passive LCD Panel A.C. Timing . . . . . . . . . . . . . . . . . . . . . . . . . .92
Table 7-31: 16-Bit Dual Color Passive LCD Panel A.C. Timing . . . . . . . . . . . . . . . . . . . . . . . . .94
Table 7-32: TFT/D-TFD A.C. Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
Table 8-1:
SED1355 Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Table 8-2:
DRAM Refresh Rate Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Table 8-3:
Panel Data Width Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Table 8-4:
FPLINE Polarity Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Table 8-5:
FPFRAME Polarity Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Table 8-6:
Simultaneous Display Option Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Table 8-7:
Bit-per-pixel Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Table 8-8:
Pixel Panning Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Table 8-9:
PCLK Divide Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Table 8-10: Suspend Refresh Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Table 8-11: MA/GPIO Pin Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Table 8-12: Minimum Memory Timing Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Table 8-13: RAS#-to-CAS# Delay Timing Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Table 8-14: RAS Precharge Timing Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Table 8-15: Optimal NRC, NRP, and NRCD values at maximum MCLK frequency . . . . . . . . . . . . . . 117
Table 8-16: Minimum Memory Timing Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Table 8-17: Ink/Cursor Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Table 8-18: Ink/Cursor Start Address Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Table 8-19: Recommended Alternate FRM Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Table 9-1:
SED1355 Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Table 12-1: Ink/Cursor Start Address Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Table 12-2: Ink/Cursor Color Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Table 13-2
Minimum DRAM Size Required for SwivelView. . . . . . . . . . . . . . . . . . . . . . . . . . 139
Table 14-1: Maximum PCLK Frequency with EDO-DRAM . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Table 14-2: Maximum PCLK Frequency with FPM-DRAM . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Table 14-3: Example Frame Rates with Ink Disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Table 14-4: Number of MCLKs required for various memory access . . . . . . . . . . . . . . . . . . . . . . 144
Table 14-5: Total # MCLKs taken for Display refresh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Table 14-6: Theoretical Maximum Bandwidth M byte/sec, Cursor/Ink disabled . . . . . . . . . . . . . . . . 146
Table 15-1: Power Save Mode Function Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Table 15-2: Pin States in Power-save Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 9
List of Figures
Figure 3-1:
Typical System Diagram (SH-4 Bus) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 3-2:
Typical System Diagram (SH-3 Bus) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 3-3:
Typical System Diagram (MC68K Bus 1, 16-Bit 68000) . . . . . . . . . . . . . . . . . . . . . 16
Figure 3-4:
Typical System Diagram (MC68K Bus 2, 32-Bit 68030) . . . . . . . . . . . . . . . . . . . . . 16
Figure 3-5:
Typical System Diagram (Generic Bus) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 3-6:
Typical System Diagram (NEC VR41xx (MIPS) Bus) . . . . . . . . . . . . . . . . . . . . . . 17
Figure 3-7:
Typical System Diagram (Philips PR31500/PR31700 Bus) . . . . . . . . . . . . . . . . . . . . 18
Figure 3-8:
Typical System Diagram (Toshiba TX3912 Bus) . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 3-9:
Typical System Diagram (Power PC Bus) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 3-10:
Typical System Diagram (PC Card (PCMCIA) Bus) . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 5-1:
Pinout Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 5-3:
External Circuitry for CRT Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 7-1:
SH-4 Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 7-2:
SH-3 Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 7-3:
MC68000 Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 7-4:
MC68030 Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 7-5:
PC Card Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 7-6:
Generic Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Figure 7-7:
MIPS/ISA Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 7-8:
Philips Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Figure 7-9:
Clock Input Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Figure 7-10:
Toshiba Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Figure 7-11:
Clock Input Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Figure 7-12:
Power PC Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Figure 7-13:
Clock Input Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Figure 7-14:
EDO-DRAM Read/Write Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Figure 7-15:
EDO-DRAM Read-Write Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Figure 7-16:
EDO-DRAM CAS Before RAS Refresh Timing . . . . . . . . . . . . . . . . . . . . . . . . . 67
Figure 7-17:
EDO-DRAM Self-Refresh Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Figure 7-18:
FPM-DRAM Read/Write Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Figure 7-19:
FPM-DRAM Read-Write Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Figure 7-20:
FPM-DRAM CAS Before RAS Refresh Timing . . . . . . . . . . . . . . . . . . . . . . . . . 73
Figure 7-21:
FPM-DRAM Self-Refresh Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Figure 7-22:
LCD Panel Power Off / Power On Timing. Drawn with LCDPWR set to active high polarity . . 75
Figure 7-23:
Power Save Status and Local Bus Memory Access Relative to Power Save Mode . . . . . . . . 76
Figure 7-24:
4-Bit Single Monochrome Passive LCD Panel Timing . . . . . . . . . . . . . . . . . . . . . . 7 7
Figure 7-25:
4-Bit Single Monochrome Passive LCD Panel A.C. Timing . . . . . . . . . . . . . . . . . . . 78
Figure 7-26:
8-Bit Single Monochrome Passive LCD Panel Timing . . . . . . . . . . . . . . . . . . . . . . 7 9
Figure 7-27:
8-Bit Single Monochrome Passive LCD Panel A.C. Timing . . . . . . . . . . . . . . . . . . . 80
Figure 7-28:
4-Bit Single Color Passive LCD Panel Timing . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Figure 7-29:
4-Bit Single Color Passive LCD Panel A.C. Timing . . . . . . . . . . . . . . . . . . . . . . . 82
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 10
Epson Research and Development
Vancouver Design Center
Figure 7-30:
8-Bit Single Color Passive LCD Panel Timing (Format 1). . . . . . . . . . . . . . . . . . . . . 83
Figure 7-31:
8-Bit Single Color Passive LCD Panel A.C. Timing (Format 1) . . . . . . . . . . . . . . . . . . 84
Figure 7-32:
8-Bit Single Color Passive LCD Panel Timing (Format 2). . . . . . . . . . . . . . . . . . . . . 85
Figure 7-33:
8-Bit Single Color Passive LCD Panel A.C. Timing (Format 2) . . . . . . . . . . . . . . . . . . 86
Figure 7-34:
16-Bit Single Color Passive LCD Panel Timing . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Figure 7-35:
16-Bit Single Color Passive LCD Panel A.C. Timing . . . . . . . . . . . . . . . . . . . . . . . 88
Figure 7-36:
8-Bit Dual Monochrome Passive LCD Panel Timing . . . . . . . . . . . . . . . . . . . . . . . 89
Figure 7-37:
8-Bit Dual Monochrome Passive LCD Panel A.C. Timing . . . . . . . . . . . . . . . . . . . . 90
Figure 7-38:
8-Bit Dual Color Passive LCD Panel Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Figure 7-39:
8-Bit Dual Color Passive LCD Panel A.C. Timing. . . . . . . . . . . . . . . . . . . . . . . . . 92
Figure 7-40:
16-Bit Dual Color Passive LCD Panel Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Figure 7-41:
16-Bit Dual Color Passive LCD Panel A.C. Timing . . . . . . . . . . . . . . . . . . . . . . . . 94
Figure 7-42:
16-Bit TFT/D-TFD Panel Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Figure 7-43:
TFT/D-TFD A.C. Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Figure 7-44:
CRT Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Figure 7-45:
CRT A.C. Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Figure 9-1:
Display Buffer Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Figure 10-1:
1/2/4/8 Bit-per-pixel Format Memory Organization . . . . . . . . . . . . . . . . . . . . . . . 125
Figure 10-2:
15/16 Bit-per-pixel Format Memory Organization . . . . . . . . . . . . . . . . . . . . . . . . 126
Figure 10-3:
Image Manipulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Figure 11-1:
1 Bit-per-pixel Monochrome Mode Data Output Path . . . . . . . . . . . . . . . . . . . . . . 128
Figure 11-2:
2 Bit-per-pixel Monochrome Mode Data Output Path . . . . . . . . . . . . . . . . . . . . . . 128
Figure 11-3:
4 Bit-per-pixel Monochrome Mode Data Output Path . . . . . . . . . . . . . . . . . . . . . . 129
Figure 11-4:
1 Bit-per-pixel Color Mode Data Output Path . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Figure 11-5:
2 Bit-per-pixel Color Mode Data Output Path . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Figure 11-6:
4 Bit-per-pixel Color Mode Data Output Path . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Figure 11-7:
8 Bit-per-pixel Color Mode Data Output Path . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Figure 12-1:
Ink/Cursor Data Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Figure 12-2:
Cursor Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Figure 13-1:
Relationship Between The Screen Image and the Image Residing in the Display Buffer . . . . 136
Figure 16-1:
Mechanical Drawing QFP15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 11
1 Introduction
1.1 Scope
This is the Hardware Functional Specification for the SED1355 Embedded RAMDAC LCD/CRT
Controller. Included in this document are timing diagrams, AC and DC characteristics, register
descriptions, and power management descriptions. This document is intended for two audiences:
Video Subsystem Designers and Software Developers.
This specification will be updated as appropriate. Please check the Epson Electronics America
Website at http://www.eea.epson.com for the latest revision of this document before beginning any
development.
We appreciate your comments on our documentation. Please contact us via email at
[email protected]
1.2 Overview Description
The SED1355 is a color/monochrome LCD/CRT graphics controller interfacing to a wide range of
CPUs and display devices. The SED1355 architecture is designed to meet the low cost, low power
requirements of the embedded markets, such as Mobile Communications, Hand-Held PCs, and
Office Automation.
The SED1355 supports multiple CPUs, all LCD panel types, CRT, and additionally provides a
number of differentiating features. Products requiring a “Portrait” mode display can take advantage
of the SwivelView™ feature. Simultaneous, Virtual and Split Screen Display are just some of the
display modes supported, while the Hardware Cursor, Ink Layer, and the Memory Enhancement
Registers offer substantial performance benefits. These features, combined with the SED1355’s
Operating System independence, make it an ideal display solution for a wide variety of applications.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 12
Epson Research and Development
Vancouver Design Center
2 Features
2.1 Memory Interface
• 16-bit DRAM interface:
• EDO-DRAM up to 40MHz data rate (80M bytes/sec.).
• FPM-DRAM up to 25MHz data rate (50M bytes/sec.).
• Memory size options:
• 512K bytes using one 256K×16 device.
• 2M bytes using one 1M×16 device.
• Performance Enhancement Register to tailor the memory control output timing for the DRAM
device.
2.2 CPU Interface
• Supports the following interfaces:
• 8/16-bit SH-4 bus interface.
• 8/16-bit SH-3 bus interface.
• 8/16-bit interface to 8/16/32-bit MC68000 microprocessors/microcontrollers.
• 8/16-bit interface to 8/16/32-bit MC68030 microprocessors/microcontrollers.
• Philips PR31500/PR31700 (MIPS).
• Toshiba TX3912 (MIPS)
• 16-bit Power PC (MPC821) microprocessor.
• 16-bit Epson E0C33 microprocessor.
• PC Card (PCMCIA).
• StrongARM (PC Card).
• NEC VR41xx (MIPS).
• ISA bus.
• Supports the following interface with external logic:
• GX486 microprocessor.
• One-stage write buffer for minimum wait-state CPU writes.
• Registers are memory-mapped – the M/R# pin selects between the display buffer and register
address space.
• The complete 2M byte display buffer address space is addressable as a single linear address
space through the 21-bit address bus.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 13
2.3 Display Support
• 4/8-bit monochrome passive LCD interface.
• 4/8/16-bit color passive LCD interface.
• Single-panel, single-drive displays.
• Dual-panel, dual-drive displays.
• Direct support for 9/12-bit TFT/D-TFD; 18-bit TFT/D-TFD is supported up to 64K color depth
(16-bit data).
• Embedded RAMDAC (DAC)with direct analog CRT drive.
• Simultaneous display of CRT and passive or TFT/D-TFD panels.
2.4 Display Modes
• 1/2/4/8/15/16 bit-per-pixel (bpp) support on LCD/CRT.
• Up to 16 shades of gray using FRM on monochrome passive LCD panels.
• Up to 4096 colors on passive LCD panels; three 256x4 Look-Up Tables (LUT) are used to map
1/2/4/8 bpp modes into these colors, 15/16 bpp modes are mapped directly using the 4 most
significant bits of the red, green and blue colors.
• Up to 64K colors on TFT/D-TFD LCD panels and CRT; three 256x4 Look-Up Tables are used to
map 1/2/4/8 bpp modes into 4096 colors, 15/16 bpp modes are mapped directly.
2.5 Display Features
• SwivelView™: direct hardware 90° rotation of display image for “portrait” mode display.
• Split Screen Display: allows two different images to be simultaneously viewed on the same
display.
• Virtual Display Support: displays images larger than the display size through the use of panning.
• Double Buffering/multi-pages: provides smooth animation and instantaneous screen update.
• Acceleration of screen updates by allocating full display memory bandwidth to CPU (see
REG[23h] bit 7).
• Hardware 64x64 pixel 2-bit cursor or full screen 2-bit ink layer.
• Simultaneous display of CRT and passive panel or TFT/D-TFD panel.
• Normal mode for cases where LCD and CRT screen sizes are identical.
• Line-doubling for simultaneous display of 240-line images on 240-line LCD and 480-line
CRT.
• Even-scan or interlace modes for simultaneous display of 480-line images on 240-line LCD
and 480-line CRT.
2.6 Clock Source
• Single clock input for both the pixel and memory clocks.
• Memory clock can be input clock or (input clock/2), providing flexibility to use CPU bus clock
as input.
• Pixel clock can be the memory clock, (memory clock/2), (memory clock/3) or (memory clock/4).
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 14
Epson Research and Development
Vancouver Design Center
2.7 Miscellaneous
• The memory data bus, MD[15:0], is used to configure the chip at power-on.
• Three General Purpose Input/Output pins, GPIO[3:1], are available if the upper Memory
Address pins are not required for asymmetric DRAM support.
• Suspend power save mode can be initiated by either hardware or software.
• The SUSPEND# pin is used either as an input to initiate Suspend mode, or as a General Purpose
Output that can be used to control the LCD backlight. Power-on polarity is selected by an MD
configuration pin.
• Operating voltages from 2.7 volts to 5.5 volts are supported
• 128-pin QFP15 surface mount package
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 15
Power
Management
Oscillator
SUSPEND#
CLKI
3 Typical System Implementation Diagrams
SH-4
BUS
A[21]
M/R#
CSn#
CS#
A[20:0]
AB[20:0]
D[15:0]
DB[15:0]
FPDAT[15:8]
UD[7:0]
FPDAT[7:0]
LD[7:0]
FPSHIFT
FPSHIFT
4/8/16-bit
FPFRAME
FPFRAME
LCD
Display
FPLINE
WE1#
DRDY
WE1#
BS#
LCDPWR
RD/WR#
RD#
MOD
SED1355F0A
BS#
RD/WR#
FPLINE
RD#
RAS#
LCAS#
UCAS#
LCAS#
UCAS#
WE#
RAS#
BUSCLK
RESET#
CRT
Display
VRTC
WE#
CKIO
RESET#
MD[15:0]
HRTC
MA[8:0]
RED,GREEN,BLUE
WAIT#
A[8:0]
WE0#
RDY#
D[15:0]
WE0#
IREF
IREF
256Kx16
FPM/EDO-DRAM
Figure 3-1: Typical System Diagram (SH-4 Bus)
Power
Management
Oscillator
SUSPEND#
CLKI
.
SH-3
BUS
A[21]
CSn#
M/R#
CS#
A[20:0]
AB[20:0]
D[15:0]
DB[15:0]
FPDAT[15:8]
UD[7:0]
FPDAT[7:0]
LD[7:0]
FPSHIFT
FPSHIFT
4/8/16-bit
FPFRAME
FPFRAME
LCD
Display
FPLINE
WE1#
BS#
RD/WR#
RD#
WE1#
BS#
DRDY
FPLINE
MOD
SED1355F0A
LCDPWR
RD/WR#
RD#
WE#
RAS#
LCAS#
UCAS#
RAS#
LCAS#
UCAS#
BUSCLK
RESET#
VRTC
WE#
CKIO
RESET#
MD[15:0]
HRTC
MA[8:0]
RED,GREEN,BLUE
WAIT#
A[8:0]
WE0#
D[15:0]
WE0#
WAIT#
IREF
CRT
Display
IREF
256Kx16
FPM/EDO-DRAM
Figure 3-2: Typical System Diagram (SH-3 Bus)
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 16
Epson Research and Development
Vancouver Design Center
.
Oscillator
Power
Management
Decoder
Decoder
M/R#
CS#
A[20:1]
AB[20:1]
D[15:0]
DB[15:0]
CLKI
A[23:21]
FC0, FC1
SUSPEND#
MC68000
BUS
FPDAT[15:8]
UD[7:0]
FPDAT[7:0]
LD[7:0]
FPSHIFT
FPSHIFT
4/8/16-bit
FPFRAME
FPFRAME
LCD
Display
FPLINE
DRDY
LDS#
AB0#
UDS#
WE1#
AS#
FPLINE
MOD
SED1355F0A
LCDPWR
BS#
R/W#
RED,GREEN,BLUE
RD/WR#
DTACK#
UCAS#
IREF
IREF
UCAS#
RAS#
LCAS#
LCAS#
WE#
RAS#
MD[15:0]
VRTC
WE#
MA[8:0]
A[8:0]
BUSCLK
RESET#
D[15:0]
BCLK
RESET#
CRT
Display
HRTC
WAIT#
256Kx16
FPM/EDO-DRAM
Figure 3-3: Typical System Diagram (MC68K Bus 1, 16-Bit 68000)
.
Oscillator
Power
Management
Decoder
Decoder
M/R#
CS#
A[20:0]
AB[20:0]
D[31:16]
DB[15:0]
CLKI
A[31:21]
FC0, FC1
SUSPEND#
MC68030
BUS
FPDAT[15:8]
UD[7:0]
FPDAT[7:0]
LD[7:0]
FPSHIFT
FPSHIFT
4/8/16-bit
FPFRAME
FPFRAME
LCD
Display
FPLINE
DS#
WE1#
AS#
BS#
R/W#
RD/WR#
DRDY
SED1355F0A
WE0#
RED,GREEN,BLUE
WAIT#
HRTC
LCAS#
UCAS#
LCAS#
UCAS#
RAS#
RAS#
WE#
VRTC
WE#
A[8:0]
D[15:0]
BUSCLK
RESET#
MD[15:0]
SIZ0
DSACK1#
MA[8:0]
RD#
BCLK
MOD
LCDPWR
SIZ1
RESET#
FPLINE
IREF
CRT
Display
IREF
256Kx16
FPM/EDO-DRAM
Figure 3-4: Typical System Diagram (MC68K Bus 2, 32-Bit 68030)
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 17
.
Power
Management
Oscillator
M/R#
Decoder
CSn#
CS#
A[20:0]
AB[20:0]
D[15:0]
DB[15:0]
CLKI
A[27:21]
SUSPEND#
Generic
BUS
FPDAT[15:8]
UD[7:0]
FPDAT[7:0]
LD[7:0]
FPSHIFT
FPSHIFT
4/8/16-bit
FPFRAME
FPFRAME
LCD
Display
FPLINE
DRDY
WE0#
WE0#
WE1#
WE1#
RD#
FPLINE
MOD
SED1355F0A
LCDPWR
RD#
RED,GREEN,BLUE
RD/WR#
WAIT#
RAS#
LCAS#
UCAS#
LCAS#
UCAS#
WE#
RAS#
MD[15:0]
VRTC
WE#
MA[11:0]
A[11:0]
BUSCLK
RESET#
D[15:0]
BCLK
RESET#
CRT
Display
HRTC
WAIT#
IREF
IREF
1Mx16
FPM/EDO-DRAM
Figure 3-5: Typical System Diagram (Generic Bus)
.
Power
Management
Oscillator
M/R#
Decoder
CSn#
CS#
A[20:0]
AB[20:0]
D[15:0]
DB[15:0]
CLKI
A[25:21]
SUSPEND#
MIPS
BUS
FPDAT[15:8]
UD[7:0]
FPDAT[7:0]
LD[7:0]
FPSHIFT
FPSHIFT
4/8/16-bit
FPFRAME
FPFRAME
LCD
Display
FPLINE
DRDY
MEMW#
WE0#
SBHE#
WE1#
MEMR#
RD#
MOD
SED1355F0A
LCDPWR
RED,GREEN,BLUE
VDD
WE#
RAS#
LCAS#
UCAS#
RAS#
LCAS#
UCAS#
BUSCLK
RESET#
WE#
BCLK
RESET
MD[15:0]
VRTC
MA[11:0]
HRTC
WAIT#
A[11:0]
RD/WR#
D[15:0]
RDY
FPLINE
IREF
CRT
Display
IREF
1Mx16
FPM/EDO-DRAM
Figure 3-6: Typical System Diagram (NEC VR41xx (MIPS) Bus)
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 18
Epson Research and Development
Vancouver Design Center
.
Power
Management
A[12:0]
AB[12:0]
D[31:16]
DB[15:0]
CLKI
M/R#
CS#
BS#
AB[16:13]
SUSPEND#
Philips
PR31500
/PR31700 BUS
Oscillator
FPDAT[15:8]
UD[7:0]
FPDAT[7:0]
LD[7:0]
FPSHIFT
FPSHIFT
4/8/16-bit
FPFRAME
FPFRAME
LCD
Display
ALE
/CARDREG
AB20
FPLINE
AB19
DRDY
/CARDIORD
AB18
/CARDIOWR
AB17
/CARDxCSH
WE1#
/CARDxCSL
RD/WR#
FPLINE
MOD
SED1355F0A
LCDPWR
RAS#
LCAS#
UCAS#
LCAS#
UCAS#
WE#
RESET#
VRTC
RAS#
BUSCLK
RESET#
MD[15:0]
DCLKOUT
CRT
Display
HRTC
WE#
WAIT#
MA[11:0]
/CARDxWAIT
RED,GREEN,BLUE
A[11:0]
RD#
WE0#
D[15:0]
/RD
/WE
IREF
IREF
1Mx16
FPM/EDO-DRAM
Figure 3-7: Typical System Diagram (Philips PR31500/PR31700 Bus)
.
Power
Management
UD[7:0]
FPDAT[7:0]
LD[7:0]
FPSHIFT
FPSHIFT
4/8/16-bit
FPFRAME
FPFRAME
LCD
Display
FPLINE
AB19
DRDY
AB18
CARDIOWR*
AB17
CARDxCSH*
WE1#
CARDxCSL*
RD/WR#
FPLINE
MOD
SED1355F0A
LCDPWR
RAS#
LCAS#
UCAS#
LCAS#
UCAS#
VRTC
RAS#
BUSCLK
RESET#
HRTC
WE#
WAIT#
WE#
CARDxWAIT*
RED,GREEN,BLUE
MD[15:0]
RD#
WE0#
MA[11:0]
RD*
WE*
RESET#
FPDAT[15:8]
AB20
CARDIORD*
DCLKOUT
CLKI
DB[7:0]
A[11:0]
D[31:24]
ALE
CARDREG*
AB[12:0]
DB[15:8]
D[15:0]
A[12:0]
D[23:16]
M/R#
CS#
BS#
AB[16:13]
SUSPEND#
Toshiba
TX3912 BUS
Oscillator
IREF
CRT
Display
IREF
1Mx16
FPM/EDO-DRAM
Figure 3-8: Typical System Diagram (Toshiba TX3912 Bus)
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 19
.
Oscillator
Power
Management
Decoder
Decoder
M/R#
CS#
A[11:31]
AB[20:0]
D[0:15]
DB[15:0]
CLKI
A[0:10]
SUSPEND#
PowerPC
BUS
FPDAT[15:8]
UD[7:0]
FPDAT[7:0]
LD[7:0]
FPSHIFT
FPSHIFT
4/8/16-bit
FPFRAME
FPFRAME
LCD
Display
FPLINE
BI#
DRDY
WE1#
TS#
BS#
RD/WR#
SED1355F0A
RD/WR#
WE0#
RED,GREEN,BLUE
TA#
WAIT#
HRTC
CRT
Display
UCAS#
UCAS#
RAS#
LCAS#
LCAS#
RAS#
WE#
VRTC
WE#
A[8:0]
D[15:0]
BUSCLK
RESET#
MD[15:0]
TSIZ1
MA[8:0]
RD#
RESET#
MOD
LCDPWR
TSIZ0
CLKOUT
FPLINE
IREF
IREF
256Kx16
FPM/EDO-DRAM
Figure 3-9: Typical System Diagram (Power PC Bus)
Power
Management
Oscillator
SUSPEND#
CLKI
.
PC Card
BUS
A[25:21]
Decoder
Decoder
M/R#
CS#
A[20:0]
AB[20:0]
D[15:0]
DB[15:0]
FPDAT[15:8]
UD[7:0]
FPDAT[7:0]
LD[7:0]
FPSHIFT
FPSHIFT
4/8/16-bit
FPFRAME
FPFRAME
LCD
Display
FPLINE
DRDY
-WE
WE0#
-CE2
WE1#
LCDPWR
RD#
RED,GREEN,BLUE
RD/WR#
HRTC
WE#
RAS#
LCAS#
UCAS#
RAS#
LCAS#
UCAS#
VRTC
WE#
BUSCLK
RESET#
MD[15:0]
BCLK
RESET
MA[11:0]
WAIT#
A[11:0]
-CE1
-WAIT
MOD
SED1355F0A
D[15:0]
-OE
FPLINE
IREF
CRT
Display
IREF
1Mx16
FPM/EDO-DRAM
Figure 3-10: Typical System Diagram (PC Card (PCMCIA) Bus)
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 20
Epson Research and Development
Vancouver Design Center
4 Internal Description
4.1 Block Diagram Showing Datapaths
16-bit FPM/EDO-DRAM
Memory
Controller
Register
CPU
R/W
Display
FIFO
Host
CPU/MPU
LCD
I/F
LCD
I/F
LookUp
Tables
DAC
Cursor
FIFO
Power Save
CRT
CRTC
Clocks
4.2 Block Descriptions
4.2.1 Register
The Register block contains all the register latches
4.2.2 Host Interface
The Host Interface (I/F) block provides the means for the CPU/MPU to communicate with the
display buffer and internal registers via one of the supported bus interfaces.
4.2.3 CPU R/W
The CPU R/W block synchronizes the CPU requests for display buffer access. If SwivelView is
enabled, the data is rotated in this block.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 21
4.2.4 Memory Controller
The Memory Controller block arbitrates between CPU accesses and display refresh accesses as well
as generates the necessary signals to interface to one of the supported 16-bit memory devices (FPMDRAM or EDO-DRAM).
4.2.5 Display FIFO
The Display FIFO block fetches display data from the Memory Controller for display refresh.
4.2.6 Cursor FIFO
The Cursor FIFO block fetches Cursor/ink data from the Memory Controller for display refresh.
4.2.7 Look-Up Tables
The Look-Up Tables block contains three 256x4 Look-Up Tables (LUT), one for each primary
color. In monochrome mode, only the green LUT is selected and used. This block contains antisparkle circuitry. The cursor/ink and display data are merged in this block.
4.2.8 CRTC
The CRTC generates the sync timing for the LCD and CRT, defining the vertical and horizontal
display periods.
4.2.9 LCD Interface
The LCD Interface block performs Frame Rate Modulation (FRM) for passive LCD panels and
generates the correct data format and timing control signals for various LCD and TFT/D-TFD
panels.
4.2.10 DAC
The DAC is the Digital to Analog converter for analog CRT support.
4.2.11 Power Save
The Power Save block contains the power save mode circuitry.
4.2.12 Clocks
The Clocks module is the source of all clocks in the chip.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 22
Epson Research and Development
Vancouver Design Center
5 Pins
5.1 Pinout Diagram
96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
128
MA2
127
MA4
126
MA3
125
VSS
124
CLKI
123
TESTEN
122
SUSPEND#
121
VDD
120
VDD
FPFRAME
119
FPLINE
118
LCDPWR
117
DRDY
116
FPSHIFT
115
VSS
114
FPDAT0
113
FPDAT1
112
FPDAT2
111
FPDAT4
110
FPDAT3
109
FPDAT5
108
FPDAT6
107
FPDAT7
106
VSS
105
FPDAT8
104
FPDAT9
103
FPDAT10
102
FPDAT11
101
FPDAT12
100
FPDAT13
99
FPDAT14
98
FPDAT15
VSS
97
MA5
DACVSS
MA1
DACVDD
MA6
RED
MA0
MA7
IREF
MA10
DACVDD
MA8
GREEN
MA11
DACVDD
BLUE
MA9
DACVSS
VDD
HRTC
RAS#
VRTC
WE#
VDD
UCAS#
VSS
LCAS#
AB20
VSS
AB19
MD7
SED1355
AB18
MD8
AB17
MD6
AB16
MD9
AB15
MD5
AB14
MD10
AB13
MD4
AB12
MD11
AB11
MD3
AB10
MD12
AB9
MD2
AB8
MD13
AB7
MD1
AB6
MD14
AB5
MD0
AB4
MD15
AB3
VDD
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
DB0
VSS
DB1
DB2
DB3
DB4
DB6
DB5
DB7
DB9
DB8
DB10
DB11
DB12
DB13
DB14
DB15
VSS
WAIT#
VDD
BUSCLK
8
RESET#
7
RD/WR#
WE1#
6
WE0#
5
BS#
4
RD#
3
M/R#
AB0
2
CS#
AB2
AB1
1
64
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
Figure 5-1: Pinout Diagram
128-pin QFP15 surface mount package
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 23
5.2 Pin Description
Key:
I
=
Input
O
=
Output
IO
=
Bi-Directional (Input/Output)
A
=
Analog
P
=
Power pin
C
=
CMOS level input
CD
=
CMOS level input with pull down resistor (typical values of 100KΩ/180ΚΩ at 5V/3.3V respectively)
CS
=
CMOS level Schmitt input
COx
=
CMOS output driver, x denotes driver type (see tables 6-3, 6-4, 6-5 for details)
TSx
=
Tri-state CMOS output driver, x denotes driver type (see tables 6-3, 6-4, 6-5 for details)
TSxD
=
Tri-state CMOS output driver with pull down resistor (typical values of 100KΩ/180ΚΩ at 5V/3.3V)
respectively), x denotes driver type (see tables 6-3, 6-4, 6-5 for details)
CNx
=
CMOS low-noise output driver, x denotes driver type (see tables 6-3, 6-4, 6-5 for details)
5.2.1 Host Interface
Table 5-1: Host Interface Pin Descriptions
Pin Name
Type
Pin #
Cell
RESET#
State
Description
•
•
•
•
•
•
AB0
AB[12:1]
I
I
3
119-128,
1, 2
CS
C
Hi-Z
Hi-Z
For SH-3/SH-4 Bus, this pin inputs system address bit 0 (A0).
For MC68K Bus 1, this pin inputs the lower data strobe (LDS#).
For MC68K Bus 2, this pin inputs system address bit 0 (A0).
For Generic Bus, this pin inputs system address bit 0 (A0).
For MIPS/ISA Bus, this pin inputs system address bit 0 (SA0).
For Philips PR31500/31700 Bus, this pin inputs system address bit 0
(A0).
• For Toshiba TX3912 Bus, this pin inputs system address bit 0 (A0).
• For PowerPC Bus, this pin inputs system address bit 31 (A31).
• For PC Card (PCMCIA) Bus, this pin inputs system address bit 0
(A0).
See “Host Bus Interface Pin Mapping” for summary. See the respective
AC Timing diagram for detailed functionality.
• For PowerPC Bus, these pins input the system address bits 19
through 30 (A[19:30]).
• For all other busses, these pins input the system address bits 12
through 1 (A[12:1]).
See “Host Bus Interface Pin Mapping” for summary. See the respective
AC Timing diagram for detailed functionality.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 24
Epson Research and Development
Vancouver Design Center
Table 5-1: Host Interface Pin Descriptions (Continued)
Pin Name
AB[16:13]
AB17
AB18
AB19
AB20
Type
I
I
I
I
I
Pin #
115-118
114
113
112
111
Cell
C
C
C
C
C
RESET#
State
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Description
• For Philips PR31500/31700 Bus, these pins are connected to VDD.
• For Toshiba TX3912 Bus, these pins are connected to VDD.
• For PowerPC Bus, these pins input the system address bits 15
through 18 (A[15:18]).
• For all other busses, these pins input the system address bits 16
through 13 (A[16:13]).
See “Host Bus Interface Pin Mapping” for summary. See the respective
AC Timing diagram for detailed functionality.
• For Philips PR31500/31700 Bus, this pin inputs the IO write
command (/CARDIOWR).
• For Toshiba TX3912 Bus, this pin inputs the IO write command
(CARDIOWR*).
• For PowerPC Bus, this pin inputs the system address bit 14 (A14).
• For all other busses, this pin inputs the system address bit 17 (A17).
See “Host Bus Interface Pin Mapping” for summary. See the respective
AC Timing diagram for detailed functionality.
• For Philips PR31500/31700 Bus, this pin inputs the IO read
command (/CARDIORD).
• For Toshiba TX3912 Bus, this pin inputs the IO read command
(CARDIORD*).
• For PowerPC Bus, this pin inputs the system address bit 13 (A13).
• For all other busses, this pin inputs the system address bit 18 (A18).
See “Host Bus Interface Pin Mapping” for summary. See the respective
AC Timing diagram for detailed functionality.
• For Philips PR31500/31700 Bus, this pin inputs the card control
register access (/CARDREG).
• For Toshiba TX3912 Bus, this pin inputs the card control register
(CARDREG*).
• For PowerPC Bus, this pin inputs the system address bit 12 (A12).
• For all other busses, this pin inputs the system address bit 19 (A19).
See “Host Bus Interface Pin Mapping” for summary. See the respective
AC Timing diagram for detailed functionality.
• For the MIPS/ISA Bus, this pin inputs system address bit 20. Note
that for the ISA Bus, the unlatched LA20 must first be latched before
input to AB20.
• For Philips PR31500/31700 Bus, this pin inputs the address latch
enable (ALE).
• For Toshiba TX3912 Bus, this pin inputs the address latch enable
(ALE).
• For PowerPC Bus, this pin inputs the system address bit 11 (A11).
• For all other busses, this pin inputs the system address bit 20 (A20).
See “Host Bus Interface Pin Mapping” for summary. See the respective
AC Timing diagram for detailed functionality.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 25
Table 5-1: Host Interface Pin Descriptions (Continued)
Pin Name
Type
Pin #
Cell
RESET#
State
Description
These pins are the system data bus. For 8-bit bus modes, unused data
pins should be tied to VDD.
DB[15:0]
IO
16-31
C/TS2 Hi-Z
• For SH-3/SH-4 Bus, these pins are connected to D[15:0].
• For MC68K Bus 1, these pins are connected to D[15:0].
• For MC68K Bus 2, these pins are connected to D[31:16] for 32-bit
devices (e.g. MC68030) or D[15:0] for 16-bit devices (e.g.
MC68340).
• For Generic Bus, these pins are connected to D[15:0].
• For MIPS/ISA Bus, these pins are connected to SD[15:0].
• For Philips PR31500/31700 Bus, these pins are connected to
D[31:16].
• For Toshiba TX3912 Bus, pins [15:8] are connected to D[23:16] and
pins [7:0] are connected to D[31:24].
• For PowerPC Bus, these pins are connected to D[0:15].
• For PC Card (PCMCIA) Bus, these pins are connected to D[15:0].
See “Host Bus Interface Pin Mapping” for summary. See the respective
AC Timing diagram for detailed functionality.
This is a multi-purpose pin:
WE1#
M/R#
CS#
IO
I
I
9
5
4
CS/TS
Hi-Z
2
C
C
Hi-Z
Hi-Z
• For SH-3/SH-4 Bus, this pin inputs the write enable signal for the
upper data byte (WE1#).
• For MC68K Bus 1, this pin inputs the upper data strobe (UDS#).
• For MC68K Bus 2, this pin inputs the data strobe (DS#).
• For Generic Bus, this pin inputs the write enable signal for the upper
data byte (WE1#).
• For MIPS/ISA Bus, this pin inputs the system byte high enable signal
(SBHE#).
• For Philips PR31500/31700 Bus, this pin inputs the odd byte access
enable signal (/CARDxCSH).
• For Toshiba TX3912 Bus, this pin inputs the odd byte access enable
signal (CARDxCSH*).
• For PowerPC Bus, this pin outputs the burst inhibit signal (BI#).
• For PC Card (PCMCIA) Bus, this pin inputs the card enable 2 signal
(-CE2).
See “Host Bus Interface Pin Mapping” for summary. See the respective
AC Timing diagram for detailed functionality.
• For Philips PR31500/31700 Bus, this pin is connected to VDD.
• For Toshiba TX3912 Bus, this pin is connected to VDD.
• For all other busses, this input pin is used to select between the
display buffer and register address spaces of the SED1355. M/R# is
set high to access the display buffer and low to access the registers.
See Register Mapping.
See Table 5-6:, “CPU Interface Pin Mapping,” on page 34.
• For Philips PR31500/31700 Bus, this pin is connected to VDD.
• For Toshiba TX3912 Bus, this pin is connected to VDD.
• For all other busses, this is the Chip Select input.
See Table 5-6:, “CPU Interface Pin Mapping,” on page 34. See the
respective AC Timing diagram for detailed functionality.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 26
Epson Research and Development
Vancouver Design Center
Table 5-1: Host Interface Pin Descriptions (Continued)
Pin Name
Type
Pin #
Cell
RESET#
State
Description
This pin inputs the system bus clock. It is possible to apply a 2x clock
and divide it by 2 internally - see MD12 in Summary of Configuration
Options.
BUSCLK
I
13
C
Hi-Z
•
•
•
•
•
•
•
•
•
For SH-3/SH-4 Bus, this pin is connected to CKIO.
For MC68K Bus 1, this pin is connected to CLK.
For MC68K Bus 2, this pin is connected to CLK.
For Generic Bus, this pin is connected to BCLK.
For MIPS/ISA Bus, this pin is connected to CLK.
For Philips PR31500/31700 Bus, this pin is connected to DCLKOUT.
For Toshiba TX3912 Bus, this pin is connected to DCLKOUT.
For PowerPC Bus, this pin is connected to CLKOUT.
For PC Card (PCMCIA) Bus, this pin is connected to CLKI.
See “Host Bus Interface Pin Mapping” for summary. See the respective
AC Timing diagram for detailed functionality.
This is a multi-purpose pin:
BS#
I
6
CS
Hi-Z
•
•
•
•
•
•
•
•
•
For SH-3/SH-4 Bus, this pin inputs the bus start signal (BS#).
For MC68K Bus 1, this pin inputs the address strobe (AS#).
For MC68K Bus 2, this pin inputs the address strobe (AS#).
For Generic Bus, this pin is connected to V DD.
For MIPS/ISA Bus, this pin is connected to VDD.
For Philips PR31500/31700 Bus, this pin is connected to VDD.
For Toshiba TX3912 Bus, this pin is connected to VDD.
For PowerPC Bus, this pin inputs the Transfer Start signal (TS#).
For PC Card (PCMCIA) Bus, this pin is connected to VDD.
See “Host Bus Interface Pin Mapping” for summary. See the respective
AC Timing diagram for detailed functionality.
This is a multi-purpose pin:
RD/WR#
I
10
CS
Hi-Z
• For SH-3/SH-4 Bus, this pin inputs the read write signal (RD/WR#).
The SED1355 needs this signal for early decode of the bus cycle.
• For MC68K Bus 1, this pin inputs the read write signal (R/W#).
• For MC68K Bus 2, this pin inputs the read write signal (R/W#).
• For Generic Bus, this pin inputs the read command for the upper
data byte (RD1#).
• For MIPS/ISA Bus, this pin is connected to VDD.
• For Philips PR31500/31700 Bus, this pin inputs the even byte access
enable signal (/CARDxCSL).
• For Toshiba TX3912 Bus, this pin inputs the even byte access enable
signal (CARDxCSL*).
• For PowerPC Bus, this pin inputs the read write signal (RD/WR#).
• For PC Card (PCMCIA) Bus, this pin inputs the card enable 1 signal
(-CE1).
See “Host Bus Interface Pin Mapping” for summary. See the respective
AC Timing diagram for detailed functionality.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 27
Table 5-1: Host Interface Pin Descriptions (Continued)
Pin Name
Type
Pin #
Cell
RESET#
State
Description
This is a multi-purpose pin:
•
•
•
•
RD#
I
7
CS
Hi-Z
•
•
•
•
•
For SH-3/SH-4 Bus, this pin inputs the read signal (RD#).
For MC68K Bus 1, this pin is connected to VDD.
For MC68K Bus 2, this pin inputs the bus size bit 1 (SIZ1).
For Generic Bus, this pin inputs the read command for the lower data
byte (RD0#).
For MIPS/ISA Bus, this pin inputs the memory read signal (MEMR#).
For Philips PR31500/31700 Bus, this pin inputs the memory read
command (/RD).
For Toshiba TX3912 Bus, this pin inputs the memory read command
(RD*).
For PowerPC Bus, this pin inputs the transfer size 0 signal (TSIZ0).
For PC Card (PCMCIA) Bus, this pin inputs the output enable signal
(-OE).
See “Host Bus Interface Pin Mapping” for summary. See the respective
AC Timing diagram for detailed functionality.
This is a multi-purpose pin:
WE0#
I
8
CS
Hi-Z
• For SH-3/SH-4 Bus, this pin inputs the write enable signal for the
lower data byte (WE0#).
• For MC68K Bus 1, this pin must be connected to VDD
• For MC68K Bus 2, this pin inputs the bus size bit 0 (SIZ0).
• For Generic Bus, this pin inputs the write enable signal for the lower
data byte (WE0#).
• For MIPS/ISA Bus, this pin inputs the memory write signal
(MEMW#).
• For Philips PR31500/31700 Bus, this pin inputs the memory write
command (/WE).
• For Toshiba TX3912 Bus, this pin inputs the memory write command
(WE*).
• For PowerPC Bus, this pin inputs the Transfer Size 1 signal (TSIZ1).
• For PC Card (PCMCIA) Bus, this pin inputs the write enable signal (WE).
See “Host Bus Interface Pin Mapping” for summary. See the respective
AC Timing diagram for detailed functionality.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 28
Epson Research and Development
Vancouver Design Center
Table 5-1: Host Interface Pin Descriptions (Continued)
Pin Name
Type
Pin #
Cell
RESET#
State
Description
The active polarity of the WAIT# output is configurable; the state of MD5
on the rising edge of RESET# defines the active polarity of WAIT# - see
“Summary of Configuration Options”.
WAIT#
O
15
TS2
Hi-Z
• For SH-3 Bus, this pin outputs the wait request signal (WAIT#); MD5
must be pulled low during reset by the internal pull-down resistor.
• For SH-4 Bus, this pin outputs the ready signal (RDY#); MD5 must
be pulled high during reset by an external pull-up resistor.
• For MC68K Bus 1, this pin outputs the data transfer acknowledge
signal (DTACK#); MD5 must be pulled high during reset by an
external pull-up resistor.
• For MC68K Bus 2, this pin outputs the data transfer and size
acknowledge bit 1 (DSACK1#); MD5 must be pulled high during reset
by an external pull-up resistor.
• For Generic Bus, this pin outputs the wait signal (WAIT#); MD5 must
be pulled low during reset by the internal pull-down resistor.
• For MIPS/ISA Bus, this pin outputs the IO channel ready signal
(IOCHRDY); MD5 must be pulled low during reset by the internal
pull-down resistor.
• For Philips PR31500/31700 Bus, this pin outputs the wait state signal
(/CARDxWAIT); MD5 must be pulled low during reset by the internal
pull-down resistor.
• For Toshiba TX3912 Bus, this pin outputs the wait state signal
(CARDxWAIT*); MD5 must be pulled low during reset by the internal
pull-down resistor.
• For PowerPC Bus, this pin outputs the transfer acknowledge signal
(TA#); MD5 must be pulled high during reset by an external pull-up
resistor.
• For PC Card (PCMCIA) Bus, this pin outputs the wait signal (-WAIT);
MD5 must be pulled low during reset by the internal pull-down
resistor.
See “Host Bus Interface Pin Mapping” for summary. See the respective
AC Timing diagram for detailed functionality.
RESET#
SED1355
X23A-A-001-11
I
11
CS
Output
Active low input that clears all internal registers and forces all outputs to
their inactive states. Note that active high RESET signals must be
inverted before input to this pin.
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 29
5.2.2 Memory Interface
Table 5-2: Memory Interface Pin Descriptions
Pin Name
LCAS#
Type
O
Pin #
51
Cell
CO1
RESET#
State
1
Description
• For dual-CAS# DRAM, this is the column address strobe for the
lower byte (LCAS#).
• For single-CAS# DRAM, this is the column address strobe (CAS#).
See “Memory Interface Pin Mapping” for summary. See Memory
Interface Timing for detailed functionality.
This is a multi-purpose pin:
UCAS#
O
52
CO1
1
• For dual-CAS# DRAM, this is the column address strobe for the
upper byte (UCAS#).
• For single-CAS# DRAM, this is the write enable signal for the upper
byte (UWE#).
See “Memory Interface Pin Mapping” for summary. See Memory
Interface Timing for detailed functionality.
WE#
O
53
CO1
1
• For dual-CAS# DRAM, this is the write enable signal (WE#).
• For single-CAS# DRAM, this is the write enable signal for the lower
byte (LWE#).
See “Memory Interface Pin Mapping” for summary. See Memory
Interface Timing for detailed functionality.
RAS#
O
54
IO
34, 36, 38,
40, 42, 44,
46, 48, 49,
47, 45, 43,
41, 39, 37,
35
CO1
1
Row address strobe - see Memory Interface Timing for detailed
functionality.
Bi-Directional memory data bus.
MD[15:0]
C/TS
Hi-Z
1D
During reset, these pins are inputs and their states at the rising edge of
RESET# are used to configure the chip - see Summary of
Configuration Options. Internal pull-down resistors (typical values of
100KΩ/180ΚΩ at 5V/3.3V respectively) pull the reset states to 0.
External pull-up resistors can be used to pull the reset states to 1.
See Memory Interface Timing for detailed functionality.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 30
Epson Research and Development
Vancouver Design Center
Table 5-2: Memory Interface Pin Descriptions (Continued)
Pin Name
MA[8:0]
Type
O
Pin #
58, 60, 62,
64, 66, 67,
65, 63, 61
Cell
CO1
RESET#
State
0utput
Description
Multiplexed memory address - see Memory Interface Timing for
functionality.
This is a multi-purpose pin:
MA9
IO
56
C/TS
0utput
1
• For 2M byte DRAM, this is memory address bit 9 (MA9).
• For asymmetrical 512K byte DRAM, this is memory address bit 9
(MA9).
• For symmetrical 512K byte DRAM, this pin can be used as general
purpose IO pin 3 (GPIO3).
Note that unless configured otherwise, this pin defaults to an input and
must be driven to a valid logic level.
See “Memory Interface Pin Mapping” for summary. See Memory
Interface Timing for detailed functionality.
This is a multi-purpose pin:
MA10
IO
59
C/TS
0utput
1
• For asymmetrical 2M byte DRAM this is memory address bit 10
(MA10).
• For symmetrical 2M byte DRAM and all 512K byte DRAM this pin
can be used as general purpose IO pin 1 (GPIO1).
Note that unless configured otherwise, this pin defaults to an input and
must be driven to a valid logic level.
See “Memory Interface Pin Mapping” for summary. See Memory
Interface Timing for detailed functionality.
This is a multi-purpose pin:
MA11
IO
57
C/TS
0utput
1
• For asymmetrical 2M byte DRAM this is memory address bit 11
(MA11).
• For symmetrical 2M byte DRAM and all 512K byte DRAM this pin
can be used as general purpose IO pin 2 (GPIO2).
Note that unless configured otherwise, this pin defaults to an input and
must be driven to a valid logic level.
See “Memory Interface Pin Mapping” for summary. See Memory
Interface Timing for detailed functionality.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 31
5.2.3 LCD Interface
Table 5-2: LCD Interface Pin Descriptions
Pin Name
Type
Pin #
Cell
RESET# State
Description
FPDAT[15:0] O
95-88,
86-79
CN3
0utput
Panel data bus. Not all pins are used for some panels - see LCD
Interface Pin Mapping for details. Unused pins are driven low.
FPFRAME
O
73
CN3
0utput
Frame pulse
FPLINE
O
74
CN3
0utput
Line pulse
FPSHIFT
O
77
CO3
0utput
Shift clock
CO1
0utput if
MD[10]=0
LCD power control output. The active polarity of this output is selected
by the state of MD10 at the rising edge of RESET# - see Summary of
Configuration Options. This output is controlled by the power save
mode circuitry - see Power Save Modes for details.
LCDPWR
O
75
1 if MD[10]=1
This is a multi-purpose pin:
DRDY
O
76
CN3
• For TFT/D-TFD panels this is the display enable output (DRDY).
• For passive LCD with Format 1 interface this is the 2nd Shift Clock
(FPSHIFT2)
• For all other LCD panels this is the LCD backplane bias signal
(MOD).
0utput
See LCD Interface Pin Mapping and REG[02h] for details.
5.2.4 CRT Interface
Table 5-3: CRT Interface Pin Descriptions
Pin Name
Type
Pin #
Cell
RESET
# State
Description
HRTC
IO
107
CN3
0utput
Horizontal retrace signal for CRT
VRTC
IO
108
CN3
0utput
Vertical retrace signal for CRT
RED
O
100
A
Analog output for CRT color Red
GREEN
O
103
A
Analog output for CRT color Green
BLUE
O
105
A
Analog output for CRT color Blue
IREF
I
101
A
Current reference for DAC - see Analog Pins. This pin must be left
unconnected if the DAC is not needed.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 32
Epson Research and Development
Vancouver Design Center
5.2.5 Miscellaneous
Table 5-4: Miscellaneous Interface Pin Descriptions
Pin Name
Type
Pin #
Cell
RESET# State
Description
This pin can be used as a power-down input (SUSPEND#)
or as an output possibly used for controlling the LCD
backlight power:
Hi-Z if MD[9]=0 • When MD9 = 0 at rising edge of RESET#, this pin is an
active-low Schmitt input used to put the SED1355 into
High if
Hardware Suspend mode - see Section 15, “Power Save
CS/TS1 MD[10:9]=01
Modes” for details.
•
When MD[10:9] = 01 at rising edge of RESET#, this pin
Low if
is
an output (GPO) with a reset state of 1. The state of GPO
MD[10:9]=11
is controlled by REG[21h] bit 7.
• When MD[10:9] = 11 at rising edge of RESET#, this pin
is an output (GPO) with a reset state of 0. The state of GPO
is controlled by REG[21h] bit 7.
SUSPEND# IO
71
CLKI
I
69
C
TESTEN
I
70
CD
VDD
P
12, 33, 55, 72,
P
97, 109
VDD
DACVDD
P
99, 102, 104
DAC VDD
VSS
P
14, 32, 50, 68,
P
78, 87, 96, 110
VSS
DACVSS
P
98, 106
DAC VSS
SED1355
X23A-A-001-11
P
P
Input clock for the internal pixel clock (PCLK) and memory
clock (MCLK). PCLK and MCLK are derived from CLKI - see
REG[19h] for details.
Hi-Z
Test Enable. This pin should be connected to VSS for normal
operation.
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 33
5.3 Summary of Configuration Options
Table 5-5: Summary of Power On/Reset Options
Pin Name
(1/0)
value on this pin at rising edge of RESET# is used to configure:
1
0
MD0
8-bit host bus interface
MD[3:1]
Select host bus interface:MD[11] = 0:
000 = SH-3/SH-4 bus interface
001 = MC68K Bus 1
010 = MC68K Bus 2
011 = Generic
100 = Reserved
101 = MIPS/ISA
110 = PowerPC
111 = PC Card (when MD11 = 1 Philips PR31500/PR31700 or Toshiba TX3912 Bus)
MD4
Little Endian
Big Endian
MD5
WAIT# is active high (1 = insert wait state)
WAIT# is active low (0 = insert wait state)
MD[7:6]
Memory Address/GPIO configuration:
00 = symmetrical 256K×16 DRAM. MA[8:0] = DRAM address. MA[11:9] = GPIO2,1,3 pins.
01 = symmetrical 1M×16 DRAM. MA[9:0] = DRAM address. MA[10:11] = GPIO2,1 pins.
10 = asymmetrical 256K×16 DRAM. MA[9:0] = DRAM address. MA[10:11] = GPIO2,1 pins.
11 = asymmetrical 1M×16 DRAM. MA[11:0] = DRAM address.
MD8
Not used
MD9
SUSPEND# pin configured as GPO output
SUSPEND# pin configured as SUSPEND# input
MD10
Active low LCDPWR polarity or
active high GPO polarity
Active high LCDPWR polarity or
active low GPO polarity
MD11
Alternate Host Bus Interface Selected
Primary Host Bus Interface Selected
MD12
BUSCLK input divided by 2
BUSCLK input not divided
MD[15:13]
Not used
Hardware Functional Specification
Issue Date: 99/05/18
16-bit host bus interface
SED1355
X23A-A-001-11
Page 34
Epson Research and Development
Vancouver Design Center
5.4 Multiple Function Pin Mapping
Table 5-6: CPU Interface Pin Mapping
SED1355
Pin
Names
SH-3
SH-4
MC68K
Bus 1
MC68K
Bus 2
Generic MIPS/ISA
Philips
PR31500
/PR31700
Toshiba
TX3912
PowerPC
PC Card
(PCMCIA)
AB20
A20
A20
A20
A20
A20
LatchA20
ALE
ALE
A11
A20
AB19
A19
A19
A19
A19
A19
SA19
/CARDREG
CARDREG*
A12
A19
AB18
A18
A18
A18
A18
A18
SA18
/CARDIORD
CARDIORD*
A13
A18
AB17
A17
A17
A17
A17
A17
SA17
/CARDIOWR
CARDIOWR*
A14
A17
AB[16:13] A[16:13]
A[16:13]
A[16:13]
A[16:13]
A[16:13]
SA[16:13]
VDD
VDD
A[15:18]
A[16:13]
AB[12:1]
A[12:1]
A[12:1]
A[12:1]
A[12:1]
A[12:1]
SA[12:1]
A[12:1]
A[12:1]
A[19:30]
A[12:1]
AB0
A01
A0
LDS#
A0
A01
SA0
A01
A01
A31
A01
DB[15:8]
D[15:8]
D[15:8]
D[15:8]
D[31:24]
D[15:8]
SD[15:8]
D[31:24]
D[31:24]
D[0:7]
D[15:8]
DB[7:0]
D[7:0]
D[7:0]
D[7:0]
D[23:16]
D[7:0]
SD[7:0]
D[23:16]
D[23:16]
D[8:15
D[7:0]
WE1#
WE1#
WE1#
UDS#
DS#
WE1#
SBHE#
/CARDxCSH
CARDxCSH*
BI#
-CE2
M/R#
External Decode
VDD
External Decode
CS#
External Decode
VDD
External Decode
BUSCLK
CKIO
CKIO
CLK
CLK
BCLK
CLK
DCLKOUT
DCLKOUT
CLKOUT
CLKI
BS#
BS#
BS#
AS#
AS#
VDD
VDD
VDD
VDD
TS#
VDD
R/W#
R/W#
RD1#
VDD
/CARDxCSL
CARDxCSL*
RD/WR#
-CE1
VDD
SIZ1
RD0#
MEMR#
/RD
RD*
TSIZ0
-OE
VDD
SIZ0
MEMW#
/WE
WE*
TSIZ1
-WE
TA#
-WAIT
RESET#
inverted
RESET
RD/WR# RD/WR# RD/WR#
RD#
RD#
RD#
WE0#
WE0#
WE0#
WAIT#
WAIT#
RDY
RESET#
DTACK# DSACK1#
RESET# RESET# RESET#
RESET#
WE0#
WAIT#
RESET#
IOCHRDY /CARDxWAIT CARDxWAIT*
inverted
RESET
RESET#
PON*
Note
1 The bus signal A0 is not used by the SED1355 internally.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 35
Table 5-7: Memory Interface Pin Mapping
FPM/EDO-DRAM
SED1355
Pin Names
Sym 256Kx16
2-CAS#
Asym 256Kx16
2-WE#
2-CAS#
Sym 1Mx16
2-WE#
2-CAS#
MD[15:0]
D[15:0]
MA[8:0]
A[8:0]
MA9
GPIO3
2-WE#
Asym 1Mx16
2-CAS#
A9
MA10
A9
GPIO1
MA11
A10
GPIO2
UCAS#
UCAS#
UWE#
UCAS#
LCAS#
WE#
LCAS#
CAS#
WE#
LWE#
2-WE#
A11
UWE#
UCAS#
LCAS#
CAS#
WE#
LWE#
RAS#
UWE#
UCAS#
UWE#
LCAS#
CAS#
LCAS#
CAS#
WE#
LWE#
WE#
LWE#
RAS#
Note
All GPIO pins default to input on reset and unless programmed otherwise, should be connected
to either VSS or IO VDD if not used.
Table 5-8: LCD Interface Pin Mapping
SED1355
Pin
Names
Monochrome Passive
Panel
Single
4-bit
8-bit
Color Passive Panel
Dual
Single
8-bit
4-bit
Single
Single
Format 1
Format 2
8-bit
8-bit
FPFRAME
Color TFT/D-TFD Panel
Single
16-Bit
Dual
8-bit
16-bit
9-bit
12-bit
18-bit
FPFRAME
FPLINE
FPLINE
FPSHIFT
FPSHIFT
DRDY
FPSHIFT
2
MOD
MOD
DRDY
FPDAT0
driven 0
D0
LD0
driven 0
D0
D0
D0
LD0
LD0
R2
R3
R5
FPDAT1
driven 0
D1
LD1
driven 0
D1
D1
D1
LD1
LD1
R1
R2
R4
FPDAT2
driven 0
D2
LD2
driven 0
D2
D2
D2
LD2
LD2
R0
R1
R3
FPDAT3
driven 0
D3
LD3
driven 0
D3
D3
D3
LD3
LD3
G2
G3
G5
FPDAT4
D0
D4
UD0
D0
D4
D4
D4
UD0
UD0
G1
G2
G4
FPDAT5
D1
D5
UD1
D1
D5
D5
D5
UD1
UD1
G0
G1
G3
FPDAT6
D2
D6
UD2
D2
D6
D6
D6
UD2
UD2
B2
B3
B5
FPDAT7
D3
D7
UD3
D3
D7
D7
D7
UD3
UD3
B1
B2
B4
FPDAT8
driven 0 driven 0 driven 0 driven 0 driven 0 driven 0
D8
driven 0
LD4
B0
B1
B3
FPDAT9
driven 0 driven 0 driven 0 driven 0 driven 0 driven 0
D9
driven 0
LD5
driven 0
R0
R2
FPDAT10 driven 0 driven 0 driven 0 driven 0 driven 0 driven 0
D10
driven 0
LD6
driven 0 driven 0
R1
FPDAT11 driven 0 driven 0 driven 0 driven 0 driven 0 driven 0
D11
driven 0
LD7
driven 0
G2
FPDAT12] driven 0 driven 0 driven 0 driven 0 driven 0 driven 0
D12
driven 0
UD4
driven 0 driven 0
G1
FPDAT13 driven 0 driven 0 driven 0 driven 0 driven 0 driven 0
D13
driven 0
UD5
driven 0 driven 0
G0
FPDAT14 driven 0 driven 0 driven 0 driven 0 driven 0 driven 0
D14
driven 0
UD6
driven 0
B2
FPDAT15 driven 0 driven 0 driven 0 driven 0 driven 0 driven 0
D15
driven 0
UD7
driven 0 driven 0
Hardware Functional Specification
Issue Date: 99/05/18
G0
B0
B1
SED1355
X23A-A-001-11
Page 36
Epson Research and Development
Vancouver Design Center
5.5 CRT Interface
The following figure shows the external circuitry for the CRT interface.
DAC VDD = 3.3V
DAC VDD = 2.7V to 5.5V
OR
1.5kΩ
1%
4.6 mA
IREF 4.6 mA
1µF
4.6 mA
V+
2N2222
R
140Ω
1%
1kΩ
1%
DAC VSS
V-
DAC VSS
290Ω
1%
R
G
B
}
150Ω
1%
DAC VSS
150Ω
1%
DAC VSS
LM334
29Ω
1%
DAC VSS
1N457
DAC VSS
To CRT
150Ω
1%
DAC VSS
Figure 5-3: External Circuitry for CRT Interface
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 37
6 D.C. Characteristics
Table 6-1: Absolute Maximum Ratings
Symbol
Parameter
Rating
Units
VDD
Supply Voltage
VSS - 0.3 to 6.0
V
DAC VDD
Supply Voltage
VSS - 0.3 to 6.0
V
VIN
Input Voltage
VSS - 0.3 to VDD + 0.5
V
VOUT
Output Voltage
VSS - 0.3 to VDD + 0.5
V
TSTG
Storage Temperature
-65 to 150
°C
TSOL
Solder Temperature/Time
260 for 10 sec. max at lead
°C
Table 6-2: Recommended Operating Conditions
Symbol
Parameter
Condition
VDD
Supply Voltage
VIN
Input Voltage
VSS
TOPR
Operating Temperature
-40
Hardware Functional Specification
Issue Date: 99/05/18
VSS = 0 V
Min
2.7
Typ
3.0/3.3/5.0
25
Max
Units
5.5
V
VDD
V
85
°C
SED1355
X23A-A-001-11
Page 38
Epson Research and Development
Vancouver Design Center
Table 6-3: Electrical Characteristics for VDD = 5.0V typical
Symbol
Parameter
IDDS
Quiescent Current
IIZ
Input Leakage Current
IOZ
Output Leakage Current
Condition
Min
Typ
Quiescent Conditions
Max
Units
400
uA
-1
1
µA
-1
1
µA
High Level Output Voltage
VDD = min
-4mA (Type1),
IOL =
-8mA (Type2)
-12mA (Type3)
VOL
Low Level Output Voltage
VDD = min
4mA (Type1),
IOL =
8mA (Type2)
12mA (Type3)
VIH
High Level Input Voltage
CMOS level, VDD = max
VIL
Low Level Input Voltage
CMOS level, VDD = min
1.0
V
VT+
High Level Input Voltage
CMOS Schmitt,
VDD = 5.0V
4.0
V
VT-
Low Level Input Voltage
CMOS Schmitt,
VDD = 5.0V
0.8
V
VH1
Hysteresis Voltage
CMOS Schmitt,
VDD = 5.0V
0.3
V
RPD
Pull Down Resistance
VI = VDD
50
CI
VOH
VDD - 0.4
V
0.4
3.5
V
V
200
kΩ
Input Pin Capacitance
12
pF
CO
Output Pin Capacitance
12
pF
CIO
Bi-Directional Pin Capacitance
12
pF
SED1355
X23A-A-001-11
100
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 39
Table 6-4: Electrical Characteristics for VDD = 3.3V typical
Symbol
Parameter
IDDS
Quiescent Current
IIZ
Input Leakage Current
IOZ
Output Leakage Current
Condition
Min
Typ
Quiescent Conditions
Max
Units
290
uA
-1
1
µA
-1
1
µA
High Level Output Voltage
VDD = min
-2mA (Type1),
IOL =
-4mA (Type2)
-6mA (Type3)
VOL
Low Level Output Voltage
VDD = min
2mA (Type1),
IOL =
4mA (Type2)
6mA (Type3)
VIH
High Level Input Voltage
CMOS level, VDD = max
VIL
Low Level Input Voltage
CMOS level, VDD = min
0.8
V
VT+
High Level Input Voltage
CMOS Schmitt,
VDD = 3.3V
2.4
V
VT-
Low Level Input Voltage
CMOS Schmitt,
VDD = 3.3V
0.6
V
VH1
Hysteresis Voltage
CMOS Schmitt,
VDD = 3.3V
0.1
V
RPD
Pull Down Resistance
VI = VDD
90
CI
VOH
VDD - 0.3
V
0.3
2.2
V
V
360
kΩ
Input Pin Capacitance
12
pF
CO
Output Pin Capacitance
12
pF
CIO
Bi-Directional Pin Capacitance
12
pF
Hardware Functional Specification
Issue Date: 99/05/18
180
SED1355
X23A-A-001-11
Page 40
Epson Research and Development
Vancouver Design Center
Table 6-5: Electrical Characteristics for VDD = 3.0V typical
Symbol
Parameter
IDDS
Quiescent Current
IIZ
Input Leakage Current
IOZ
Output Leakage Current
Condition
Min
Typ
Quiescent Conditions
Max
Units
260
uA
-1
1
µA
-1
1
µA
High Level Output Voltage
VDD = min
-1.8mA (Type1),
IOL =
VDD - 0.3
-3.5mA (Type2)
-5mA (Type3)
VOL
Low Level Output Voltage
VDD = min
1.8mA (Type1),
IOL =
3.5mA (Type2)
5mA (Type3)
VIH
High Level Input Voltage
CMOS level, VDD = max
VIL
Low Level Input Voltage
CMOS level, VDD = min
0.8
V
VT+
High Level Input Voltage
CMOS Schmitt,
VDD = 3.0V
2.3
V
VT-
Low Level Input Voltage
CMOS Schmitt,
VDD = 3.0V
0.5
V
VH1
Hysteresis Voltage
CMOS Schmitt,
VDD = 3.0V
0.1
V
RPD
Pull Down Resistance
VI = VDD
100
CI
VOH
V
0.3
2.0
V
V
400
kΩ
Input Pin Capacitance
12
pF
CO
Output Pin Capacitance
12
pF
CIO
Bi-Directional Pin Capacitance
12
pF
SED1355
X23A-A-001-11
200
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 41
7 A.C. Characteristics
Conditions: VDD = 3.0V ± 10% and VDD = 5.0V ± 10%
TA = -40° C to 85° C
Trise and Tfall for all inputs must be ≤ 5 nsec (10% ~ 90%)
CL = 50pF (CPU Interface), unless noted
CL = 100pF (LCD Panel Interface)
CL = 10pF (Display Buffer Interface)
CL = 10pF (CRT Interface)
7.1 CPU Interface Timing
7.1.1 SH-4 Interface Timing
t1
t2
t3
CKIO
t4
t5
A[20:0], M/R#
RD/WR#
t6
t7
BS#
t12
t8
CSn#
t10
t9
WEn#
RD#
t12
t11
RDY#
t14
t13
D[15:0](write)
t15
t16
D[15:0](read)
Figure 7-1: SH-4 Timing
Note
The above timing diagram is not applicable if the BUSCLK divided by 2 configuration option is
selected.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 42
Epson Research and Development
Vancouver Design Center
Note
The SH-4 Wait State Control Register for the area in which the SED1355 resides must be set to a
non-zero value. The SH-4 read-to-write cycle transition must be set to a non-zero value (with reference to BUSCLK).
Table 7-1: SH-4 Timing
Symbol
t1
Parameter
3.0Va
Min
Max
5.0Vb
Min
Max
Units
Clock period
15
15
ns
t2
Clock pulse width high
6
6
ns
t3
Clock pulse width low
6
6
ns
t4
A[20:0], M/R#, RD/WR# setup to CKIO
3
3
ns
t5
A[20:0], M/R#, RD/WR# hold from CS#
0
0
ns
t6
BS# setup
4
4
ns
t7
BS# hold
1
1
ns
t8
CSn# setup
4
4
ns
t92
Falling edge RD# to D[15:0] driven
0
0
ns
t10
Rising edge CSn# to RDY# tri-state
5
25
2.5
10
ns
t111
Falling edge CSn# to RDY# driven
0
15
0
10
ns
t12
CKIO to WAIT# delay
4
20
3.6
12
2nd
ns
10
10
ns
D[15:0] hold (write cycle)
0
0
ns
t15
D[15:0] valid to RDY# falling edge (read cycle)
0
0
ns
t16
Rising edge RD# to D[15:0] tri-state (read cycle)
5
t13
D[15:0] setup to
t14
CKIO after BS# (write cycle)
a
b
SED1355
X23A-A-001-11
25
2.5
10
ns
Two Software WAIT States Required
One Software WAIT State Required
1.
If the SED1355 host interface is disabled, the timing for RDY# driven is relative to the falling
edge of CSn# or the first positive edge of CKIO after A[20:0], M/R# becomes valid,
whichever one is later.
2.
If the SED1355 host interface is disabled, the timing for D[15:0] driven is relative to the falling
edge of RD# or the first positive edge of CKIO after A[20:0], M/R# becomes valid,
whichever one is later.
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 43
7.1.2 SH-3 Interface Timing
t1
t2
t3
CKIO
t4
t5
A[20:0], M/R#
RD/WR#
t6
t7
BS#
t12
t8
CSn#
t10
t9
WEn#
RD#
t12
t11
WAIT#
t14
t13
D[15:0](write)
t15
t16
D[15:0](read)
Figure 7-2: SH-3 Timing
Note
The above timing diagram is not applicable if the BUSCLK divided by 2 configuration option is
selected.
Note
The SH-3 Wait State Control Register for the area in which the SED1355 resides must be set to a
non-zero value.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 44
Epson Research and Development
Vancouver Design Center
Table 7-2: SH-3 Timing
Symbol
Parameter
3.0Va
Min
Max
5.0Vb
Min
Max
15.1
15.1
ns
Units
t1
Clock period
t2
Clock pulse width high
6
6
ns
t3
Clock pulse width low
6
6
ns
t4
A[20:0], M/R#, RD/WR# setup to CKIO
3
3
ns
t5
A[20:0], M/R#, RD/WR# hold from CS#
0
0
ns
t6
BS# setup
4
4
ns
t7
BS# hold
1
1
ns
t8
CSn# setup
4
4
ns
t92
Falling edge RD# to D[15:0] driven
0
0
ns
t10
Rising edge CSn# to WAIT# tri-state
5
25
2.5
10
ns
t111
Falling edge CSn# to WAIT# driven
0
15
0
10
ns
t12
CKIO to WAIT# delay
4
20
3.6
12
2nd
ns
10
10
ns
D[15:0] hold (write cycle)
0
0
ns
t15
D[15:0] valid to WAIT# rising edge (read cycle)
0
0
ns
t16
Rising edge RD# to D[15:0] tri-state (read cycle)
5
t13
D[15:0] setup to
t14
CKIO after BS# (write cycle)
a
b
SED1355
X23A-A-001-11
25
2.5
10
ns
Two Software WAIT States Required
One Software WAIT State Required
1.
If the SED1355 host interface is disabled, the timing for WAIT# driven is relative to the falling
edge of CSn# or the first positive edge of CKIO after A[20:0], M/R# becomes valid,
whichever one is later.
2.
If the SED1355 host interface is disabled, the timing for D[15:0] driven is relative to the falling
edge of RD# or the first positive edge of CKIO after A[20:0], M/R# becomes valid,
whichever one is later.
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 45
7.1.3 MC68K Bus 1 Interface Timing (e.g. MC68000)
t1
t2
t3
CLK
t4
t5
A[20:1]
M/R#
t6
CS#
t17
AS#
t11
UDS#
LDS#
t8
t7
R/W#
t9
t10
DTACK#
t12
t13
D[15:0](write)
t14
t15
t16
D[15:0](read)
Figure 7-3: MC68000 Timing
Note
The above timing diagram is not applicable if the BUSCLK divided by 2 configuration option is
selected.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 46
Epson Research and Development
Vancouver Design Center
Table 7-3: MC68000 Timing
3.0V
Symbol
t1
t2
Parameter
Clock period
Min
20
5.0V
Max
Min
20
Max
Units
ns
Clock pulse width high
6
6
ns
t3
Clock pulse width low
6
6
ns
t4
A[20:1], M/R# setup to first CLK where CS# = 0 AS# = 0, and
either UDS#=0 or LDS# = 0
10
10
ns
t5
A[20:1], M/R# hold from AS#
0
0
ns
t6
CS# hold from AS#
0
0
ns
t7
R/W# setup to before to either UDS#=0 or LDS# = 0
10
10
ns
t8
R/W# hold from AS#
0
0
ns
t91
AS# = 0 and CS# = 0 to DTACK# driven high
0
0
ns
t10
AS# high to DTACK# high
3
18
3
ns
10
ns
First BCLK where AS# = 1 to DTACK# high impedance
t12
D[15:0] valid to third CLK where CS# = 0 AS# = 0, and either
UDS#=0 or LDS# = 0 (write cycle)
10
10
ns
t13
D[15:0] hold from falling edge of DTACK# (write cycle)
0
0
ns
t142
Falling edge of UDS#=0 or LDS#=0 to D[15:0] driven (read
cycle)
0
0
ns
t15
D[15:0] valid to DTACK# falling edge (read cycle)
0
0
ns
t16
UDS# and LDS# high to D[15:0] invalid/high impedance (read
cycle)
5
t17
AS# high setup to CLK
2
SED1355
X23A-A-001-11
25
12
t11
25
2.5
2
10
ns
ns
1.
If the SED1355 host interface is disabled, the timing for DTACK# driven high is relative to the
falling edge of CS#, AS# or the first positive edge of CLK after A[20:1], M/R# becomes valid,
whichever one is later.
2.
If the SED1355 host interface is disabled, the timing for D[15:0] driven is relative to the falling
edge of UDS#, LDS# or the first positive edge of CLK after A[20:1], M/R# becomes valid,
whichever one is later.
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 47
7.1.4 MC68K Bus 2 Interface Timing (e.g. MC68030)
t1
t2
t3
CLK
t5
t4
A[20:0]
SIZ[1:0] M/R#
t6
CS#
t17
AS#
t11
DS#
t7
t8
R/W#
t9
t10
DSACK1#
t12
t13
D[31:16](write)
t14
t15
t16
D[31:16](read)
Figure 7-4: MC68030 Timing
Note
The above timing diagram is not applicable if the BUSCLK divided by 2 configuration option is
selected.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 48
Epson Research and Development
Vancouver Design Center
Table 7-4: MC68030 Timing
3.0V
Symbol
t1
t2
Parameter
Clock period
Min
20
5.0V
Max
Min
20
Max
Units
ns
Clock pulse width high
6
6
ns
t3
Clock pulse width low
6
6
ns
t4
A[20:0], SIZ[1:0], M/R# setup to first CLK where CS# = 0 AS# =
0, and either UDS#=0 or LDS# = 0
10
10
ns
t5
A[20:0], SIZ[1:0], M/R# hold from AS#
0
0
ns
t6
CS# hold from AS#
0
0
ns
t7
R/W# setup to DS#
10
10
ns
t8
R/W# hold from AS#
0
0
ns
t91
AS# = 0 and CS# = 0 to DSACK1# driven high
0
0
ns
t10
AS# high to DSACK1# high
3
18
3
12
ns
t11
First BCLK where AS# = 1 to DSACK1# high impedance
5
25
2.5
10
ns
t12
D[31:16] valid to third CLK where CS# = 0 AS# = 0, and either
UDS#=0 or LDS# = 0 (write cycle)
10
10
ns
t13
D[31:16] hold from falling edge of DSACK1# (write cycle)
0
0
ns
t142
Falling edge of UDS#=0 or LDS# = 0 to D[31:16] driven (read
cycle)
0
0
ns
t15
D[31:16] valid to DSACK1# falling edge (read cycle)
0
0
ns
t16
UDS# and LDS# high to D[31:16] invalid/high impedance (read
cycle)
5
t17
AS# high setup to CLK
2
SED1355
X23A-A-001-11
25
2.5
2
10
ns
ns
1.
If the SED1355 host interface is disabled, the timing for DSACK1# driven high is relative to
the falling edge of CS#, AS# or the first positive edge of CLK after A[20:0], M/R# becomes
valid, whichever one is later.
2.
If the SED1355 host interface is disabled, the timing for D[31:16] driven is relative to the
falling edge of UDS#, LDS# or the first positive edge of CLK after A[20:0], M/R# becomes
valid, whichever one is later.
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 49
7.1.5 PC Card Interface Timing
t1
t2
t3
CLK
t5
t4
A[20:0]
M/R#
-CE[1:0]
t6
CS#
-OE
-WE
t7
t8
-WAIT
t10
t9
D[15:0](write)
t11
t12
t13
D[15:0](read)
Figure 7-5: PC Card Timing
Note
The above timing diagram is not applicable if the BUSCLK divided by 2 configuration option is
selected.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 50
Epson Research and Development
Vancouver Design Center
Table 7-5: PC Card Timing
Symbol
t1
Parameter
Clock period
3.0V
Min
Max
20
5.0V
Min
Max
20
Units
ns
t2
Clock pulse width high
6
6
ns
t3
Clock pulse width low
6
6
ns
t4
A[20:0], M/R# setup to first CLK where CS# = 0 and either -OE = 0 or WE = 0
10
10
ns
t5
A[20:0], M/R# hold from rising edge of either -OE or -WE
0
0
ns
t6
CS# hold from rising edge of either -OE or -WE
0
t71
Falling edge of either -OE or -WE to -WAIT driven low
0
15
0
0
10
ns
t8
Rising edge of either -OE or -WE to -WAIT tri-state
5
25
2.5
10
t9
D[15:0] setup to third CLK where CS# = 0 and -WE = 0 (write cycle)
10
10
ns
t10
ns
ns
D[15:0] hold (write cycle)
0
0
ns
t112
Falling edge -OE to D[15:0] driven (read cycle)
0
0
ns
t12
D[15:0] setup to rising edge -WAIT (read cycle)
0
Rising edge of -OE to D[15:0] tri-state (read cycle)
5
t13
SED1355
X23A-A-001-11
0
25
5
ns
10
ns
1.
If the SED1355 host interface is disabled, the timing for -WAIT driven low is relative to the
falling edge of -OE, -WE or the first positive edge of CLK after A[20:0], M/R# becomes valid,
whichever one is later.
2.
If the SED1355 host interface is disabled, the timing for D[15:0] driven is relative to the falling
edge of -OE or the first positive edge of CLK after A[20:0], M/R# becomes valid, whichever
one is later.
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 51
7.1.6 Generic Interface Timing
t1
t2
t3
CLK
t5
t4
A[20:0]
M/R#
t6
CS#
RD0#,RD1#
WE0#,WE1#
t7
t8
WAIT#
t10
t9
D[15:0](write)
t11
t12
t13
D[15:0](read)
Figure 7-6: Generic Timing
Note
The above timing diagram is not applicable if the BUSCLK divided by 2 configuration option is
selected.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 52
Epson Research and Development
Vancouver Design Center
Table 7-6: Generic Timing
Symbol
t1
Parameter
Clock period
3.0V
Min
Max
20
5.0V
Min
Max
20
Units
ns
t2
Clock pulse width high
6
6
ns
t3
Clock pulse width low
6
6
ns
t4
A[20:0], M/R# setup to first CLK where CS# = 0 and either
RD0#,RD1#,WE0# or WE1# = 0
10
10
ns
t5
A[20:0], M/R# hold from rising edge of either RD0#,RD1#,WE0# or
WE1# = 0
0
0
ns
t6
CS# hold from rising edge of either RD0#,RD1#,WE0# or WE1# = 0
0
t71
Falling edge of either RD0#,RD1#,WE0# or WE1# to WAIT# driven low
0
15
0
0
10
ns
ns
t8
Rising edge of either RD0#,RD1#,WE0# or WE1# to WAIT# tri-state
5
25
2.5
10
ns
t9
D[15:0] setup to third CLK where CS# = 0 and WE0#,WE1# = 0 (write
cycle)
10
10
ns
t10
D[15:0] hold (write cycle)
0
0
ns
t112
Falling edge RD0#,RD1# to D[15:0] driven (read cycle)
0
0
ns
t12
D[15:0] setup to rising edge WAIT# (read cycle)
0
0
ns
t13
Rising edge of RD0#,RD1# to D[15:0] tri-state (read cycle)
5
SED1355
X23A-A-001-11
25
5
10
ns
1.
If the SED1355 host interface is disabled, the timing for WAIT# driven low is relative to the
falling edge of RD0#, RD1#, WE0#, WE1# or the first positive edge of CLK after A[20:0],
M/R# becomes valid, whichever one is later.
2.
If the SED1355 host interface is disabled, the timing for D[15:0] driven is relative to the falling
edge of RD0#, RD1# or the first positive edge of CLK after A[20:0], M/R# becomes valid,
whichever one is later.
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 53
7.1.7 MIPS/ISA Interface Timing
t1
t2
t3
BUSCLK
t5
t4
LatchA20
SA[19:0]
M/R#, SBHE#
t6
CS#
MEMR#
MEMW#
t7
t8
IOCHRDY
t10
t9
SD[15:0](write)
t12
t11
t13
SD[15:0](read)
Figure 7-7: MIPS/ISA Timing
Note
The above timing diagram is not applicable if the BUSCLK divided by 2 configuration option is
selected.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 54
Epson Research and Development
Vancouver Design Center
Table 7-7: MIPS/ISA Timing
3.0V
Symbol
t1
t2
Parameter
Clock period
Min
20
5.0V
Max
Min
20
Max
Units
ns
Clock pulse width high
6
6
ns
t3
Clock pulse width low
6
6
ns
t4
LatchA20, SA[19:0], M/R#, SBHE# setup to first BUSCLK where
CS# = 0 and either MEMR# = 0 or MEMW# = 0
10
10
ns
t5
LatchA20, SA[19:0], M/R#, SBHE# hold from rising edge of
either MEMR# or MEMW#
0
0
ns
t6
CS# hold from rising edge of either MEMR# or MEMW#
0
0
ns
t71
Falling edge of either MEMR# or MEMW# to IOCHRDY# driven
low
0
0
ns
t8
Rising edge of either MEMR# or MEMW# to IOCHRDY# tri-state
5
t9
SD[15:0] setup to third BUSCLK where CS# = 0 MEMW# = 0
(write cycle)
10
10
ns
t10
SD[15:0] hold (write cycle)
0
0
ns
25
2.5
10
ns
t112
Falling edge MEMR# to SD[15:0] driven (read cycle)
0
0
ns
t12
SD[15:0] setup to rising edge IOCHRDY# (read cycle)
0
0
ns
t13
Rising edge of MEMR# toSD[15:0] tri-state (read cycle)
5
SED1355
X23A-A-001-11
25
5
10
ns
1.
If the SED1355 host interface is disabled, the timing for IOCHRDY driven low is relative to
the falling edge of MEMR#, MEMW# or the first positive edge of BUSCLK after LatchA20,
SA[19:0], M/R# becomes valid, whichever one is later.
2.
If the SED1355 host interface is disabled, the timing for SD[15:0] driven is relative to the
falling edge of MEMR# or the first positive edge of BUSCLK after LatchA20, SA[19:0],
M/R# becomes valid, whichever one is later.
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 55
7.1.8 Philips Interface Timing (e.g. PR31500/PR31700)
t1
t3
t2
DCLKOUT
t4
t5
ADDR[12:0]
t6
t7
ALE
t8
-CARDREG
-CARDxCSH
-CARDxCSL
-CARDIORD
-CARDIOWR
-WE -RD
t9
t10
-CARDxWAIT
t11
t12
D[31:16](write)
t13
t14
t15
D[31:16](read)
Figure 7-8: Philips Timing
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 56
Epson Research and Development
Vancouver Design Center
Table 7-8: Philips Timing
3.0V
Symbol
t1
t2
Parameter
Clock period
Clock pulse width low
Min
13.3
5.0V
Max
6
Min
13.3
Max
Units
ns
6
ns
t3
Clock pulse width high
6
6
ns
t4
ADDR[12:0] setup to first CLK of cycle
10
10
ns
t5
ADDR[12:0] hold from command invalid
0
0
ns
t6
ADDR[12:0] setup to falling edge ALE
10
10
ns
t7
ADDR[12:0] hold from falling edge ALE
5
5
ns
t8
-CARDREG hold from command invalid
0
0
ns
t91
Falling edge of chip select to -CARDxWAIT driven
0
15
0
9
ns
t10
Command invalid to -CARDxWAIT tri-state
5
25
2.5
10
ns
t11
D[31:16] valid to first CLK of cycle (write cycle)
10
10
t12
D[31:16] hold from rising edge of -CARDxWAIT
0
0
t132
Chip select to D[31:16] driven (read cycle)
1
1
ns
t14
D[31:16] setup to rising edge -CARDxWAIT (read cycle)
0
0
ns
t15
Command invalid to D[31:16] tri-state (read cycle)
5
SED1355
X23A-A-001-11
25
2.5
ns
10
ns
1.
If the SED1355 host interface is disabled, the timing for -CARDxWAIT driven is relative to
the falling edge of chip select or the second positive edge of DCLKOUT after ADDR[12:0]
becomes valid, whichever one is later.
2.
If the SED1355 host interface is disabled, the timing for D[31:16] driven is relative to the
falling edge of chip select or the second positive edge of DCLKOUT after ADDR[12:0] becomes valid, whichever one is later.
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 57
Note
The Philips interface has different clock input requirements as follows:
t
PWH
t
PWL
90%
V
IH
VIL
10%
t
tr
T
f
OSC
Figure 7-9: Clock Input Requirement
Table 7-9: Clock Input Requirements for BUSCLK using Philips local bus
Symbol
Parameter
Max
Units
13.3
ns
Input Clock Pulse Width High
6
ns
Input Clock Pulse Width Low
6
ns
TOSC
Input Clock Period)
tPWH
tPWL
Min
tf
Input Clock Fall Time (10% - 90%)
5
ns
tr
Input Clock Rise Time (10% - 90%)
5
ns
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 58
Epson Research and Development
Vancouver Design Center
7.1.9 Toshiba Interface Timing (e.g. TX3912)
t1
t3
t2
DCLKOUT
t4
t5
ADDR[12:0]
t6
t7
ALE
t8
CARDREG*
CARDxCSH*
CARDxCSL*
CARDIORD*
CARDIOWR*
WE* RD*
t9
t10
CARDxWAIT*
t11
t12
D[31:16](write)
t13
t14
t15
D[31:16](read)
Figure 7-10: Toshiba Timing
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 59
Table 7-10: Toshiba Timing
3.0V
Symbol
t1
Parameter
5.0V
Clock period
Min
13.3
Max
Min
13.3
Max
Units
ns
t2
Clock pulse width low
5.4
5.4
t3
Clock pulse width high
5.4
5.4
ns
t4
ADDR[12:0] setup to first CLK of cycle
10
10
ns
ns
t5
ADDR[12:0] hold from command invalid
0
0
ns
t6
ADDR[12:0] setup to falling edge ALE
10
10
ns
t7
ADDR[12:0] hold from falling edge ALE
5
5
ns
t8
CARDREG* hold from command invalid
0
0
ns
t91
Falling edge of chip select to CARDxWAIT* driven
0
15
0
9
ns
t10
Command invalid to CARDxWAIT* tri-state
5
25
2.5
10
ns
t11
D[31:16] valid to first CLK of cycle (write cycle)
10
10
t12
D[31:16] hold from rising edge of CARDxWAIT*
0
0
t132
Chip select to D[31:16] driven (read cycle)
1
1
ns
t14
D[31:16] setup to rising edge CARDxWAIT* (read cycle)
0
0
ns
t15
Command invalid to D[31:16] tri-state (read cycle)
5
25
2.5
ns
10
ns
1.
If the SED1355 host interface is disabled, the timing for CARDxWAIT* driven is relative to
the falling edge of chip select or the second positive edge of DCLKOUT after ADDR[12:0]
becomes valid, whichever one is later.
2.
If the SED1355 host interface is disabled, the timing for D[31:16] driven is relative to the
falling edge of chip select or the second positive edge of DCLKOUT after ADDR[12:0] becomes valid, whichever one is later.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 60
Epson Research and Development
Vancouver Design Center
Note
The Toshiba interface has different clock input requirements as follows:
t
t
PWH
PWL
90%
V
IH
VIL
10%
t
tr
T
f
OSC
Figure 7-11: Clock Input Requirement
Table 7-11: Clock Input Requirements for BUSCLK using Toshiba local bus
Symbol
Min
Max
Units
TOSC
Input Clock Period)
13.3
ns
tPWH
Input Clock Pulse Width High
5.4
ns
Input Clock Pulse Width Low
5.4
ns
tPWL
SED1355
X23A-A-001-11
Parameter
tf
Input Clock Fall Time (10% - 90%)
5
ns
tr
Input Clock Rise Time (10% - 90%)
5
ns
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 61
7.1.10 Power PC Interface Timing (e.g. MPC8xx, MC68040, Coldfire)
t1
t2
t3
CLKOUT
t4
t5
A[11:31], RD/WR#
TSIZ[0:1], M/R#
t7
t6
CS#
t8
t9
TS#
t11
t10
t12
t13
t15
t16
TA#
t14
BI#
t17
t18
D[0:15](write)
t19
t20
t21
D[0:15](read)
Figure 7-12: Power PC Timing
Note
The above timing diagram is not applicable if the BUSCLK divided by 2 configuration option is
selected.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 62
Epson Research and Development
Vancouver Design Center
Table 7-12: Power PC Timing
3.0V
Symbol
t1
t2
Parameter
Clock period
Clock pulse width low
Min
25
5.0V
Max
6
Min
20
Max
Units
ns
6
ns
t3
Clock pulse width high
6
6
ns
t4
AB[11:31], RD/WR#, TSIZ[0:1], M/R# setup
10
10
ns
t5
AB[11:31], RD/WR#, TSIZ[0:1], M/R# hold
0
0
ns
t6
CS# setup
10
10
ns
t7
CS# hold
0
0
ns
t8
TS# setup
7
10
ns
t9
TS# hold
5
0
ns
t10
CLKOUT to TA# driven
0
0
ns
t11
CLKOUT to TA# low
3
19
3
12
ns
t12
CLKOUT to TA# high
3
19.7
3
13
ns
t13
negative edge CLKOUT to TA# tri-state
5
25
2.5
10
ns
t14
CLKOUT to BI# driven
0
18
0
11
ns
t15
CLKOUT to BI# high
3
16
3
10
ns
t16
negative edge CLKOUT to BI# tri-state
5
25
2.5
10
ns
t17
D[0:15] setup to 2nd CLKOUT after TS# = 0 (write cycle)
10
10
ns
t18
D[0:15] hold (write cycle)
0
0
ns
t19
CLKOUT to D[0:15] driven (read cycle)
0
0
ns
t20
D[0:15] valid to TA# falling edge (read cycle)
0
0
ns
t21
CLKOUT to D[0:15] tri-state (read cycle)
5
SED1355
X23A-A-001-11
25
2.5
10
ns
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 63
7.2 Clock Input Requirements
t
PWH
t
PWL
90%
V
IH
VIL
10%
t
tr
T
f
OSC
Figure 7-13: Clock Input Requirement
Table 7-13: Clock Input Requirements for CLKI divided down internally (MCLK = CLKI/2)
Symbol
Parameter
Min
Max
Units
TOSC
Input Clock Period
12.5
ns
tPWH
Input Clock Pulse Width High
5.6
ns
tPWL
Input Clock Pulse Width Low
5.6
tf
tr
ns
Input Clock Fall Time (10% - 90%)
5
ns
Input Clock Rise Time (10% - 90%)
5
ns
Max
Units
Table 7-14: Clock Input Requirements for CLKI
Symbol
Parameter
25
ns
Input Clock Pulse Width High
11.3
ns
Input Clock Pulse Width Low
11.3
ns
TOSC
Input Clock Period
tPWH
tPWL
Min
tf
Input Clock Fall Time (10% - 90%)
5
ns
tr
Input Clock Rise Time (10% - 90%)
5
ns
Note
When CLKI is more than 40MHz, REG[19h] bit 2 must be set to 1 (MCLK = CLKI/2).
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 64
Epson Research and Development
Vancouver Design Center
7.3 Memory Interface Timing
7.3.1 EDO-DRAM Read/Write/Read-Write Timing
t1
Memory
Clock
t2
RAS#
t3
t5
t4
t6
t1
t7
CAS#
t8
MA
t9
t10
t11 t10 t11
C1
R
C2
C3
t12
t13
WE# (read)
t15
t14
MD (read)
d1
t16
d2
t17
d3
t18
t19
WE#(write)
t20 t21
MD(write)
d1
d2
t22
d3
Figure 7-14: EDO-DRAM Read/Write Timing
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 65
t1
Memory
Clock
RAS#
t3
t5
t4
t6
t1
t7
CAS#
t8
MA
t9
t10 t11
C1
R
C2
C3
t12
C2
C1
t23
C3
t19
t24
WE#
t15
t14
MD(Read)
d1
t25
d2
t26
d3
t20 t21
MD(Write)
d1
t22
d2
d3
Figure 7-15: EDO-DRAM Read-Write Timing
Table 7-15: EDO-DRAM Read/Write/Read-Write Timing
Symbol
t1
t2
Parameter
t4
Max
Units
25
ns
Random read cycle REG[22h] bit 6-5 == 00
5t1
ns
Random read cycle REG[22h] bit 6-5 == 01
4t1
ns
Random read cycle REG[22h] bit 6-5 == 10
t3
Min
Internal memory clock period
3t1
ns
RAS# precharge time (REG[22h] bits 3-2 = 00)
2t1 - 3
ns
RAS# precharge time (REG[22h] bits 3-2 = 01)
1.45 t1 - 3
ns
RAS# precharge time (REG[22h] bits 3-2 = 10)
1t1 - 3
ns
RAS# to CAS# delay time (REG[22h] bit 4 = 0 and
bits 3-2 = 00 or 10)
2t1 - 3
ns
RAS# to CAS# delay time (REG[22h] bit 4 = 1 and
bits 3-2 = 00 or 10)
1t1 - 3
ns
RAS# to CAS# delay time (REG[22h] bits 3-2 = 01)
1.45 t1 - 3
ns
t5
CAS# precharge time
0.45 t1 - 3
ns
t6
CAS# pulse width
0.45 t1 - 3
ns
t7
RAS# hold time
1 t1 - 3
ns
Row address setup time (REG[22h] bits 3-2 = 00)
2.45 t1
ns
Row address setup time (REG[22h] bits 3-2 = 01)
2 t1
ns
Row address setup time (REG[22h] bits 3-2 = 10)
1.45 t1
ns
Row address hold time (REG[22h] bits 3-2 = 00 or
10)
0.45 t1 - 3
ns
1 t1 - 3
ns
t8
t9
Row address hold time (REG[22h] bits 3-2 = 01)
t10
Column address setup time
0.45 t1 - 3
ns
t11
Column address hold time
0.45 t1 - 3
ns
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 66
Epson Research and Development
Vancouver Design Center
Table 7-15: EDO-DRAM Read/Write/Read-Write Timing
Symbol
t12
t13
Parameter
Min
Max
Units
Read Command Setup (REG[22h] bit 4 = 0 and bits
3-2 = 00)
4.45 t1 - 3
ns
Read Command Setup (REG[22h] bit 4 = 0 and bits
3-2 = 10)
3.45 t1 - 3
ns
Read Command Setup (REG[22h] bit 4 = 1 and bits
3-2 = 00)
3.45 t1 - 3
ns
Read Command Setup (REG[22h] bit 4 = 1 and bits
3-2 = 10)
2.45 t1 - 3
ns
Read Command Setup (REG[22h] bits 3-2 = 01)
3.45 t1 - 3
ns
Read Command Hold (REG[22h] bit 4 = 0 and bits 32 = 00)
3.45 t1 - 3
ns
Read Command Hold (REG[22h] bit 4 = 0 and bits 32 = 10)
2.45 t1 - 3
ns
Read Command Hold (REG[22h] bit 4 = 1 and bits 32 = 00)
2.45 t1 - 3
ns
Read Command Hold (REG[22h] bit 4 = 1 and bits 32 = 10)
1.45 t1 - 3
ns
Read Command Hold (REG[22h] bits 3-2 = 01)
2.45 t1 - 3
ns
t14
Read Data Setup referenced from CAS#
5
ns
t15
Read Data Hold referenced from CAS#
3
ns
t16
Last Read Data Setup referenced from RAS#
5
ns
t17
Bus Turn Off from RAS#
3
t18
Write Command Setup
0.45 t1- 3
ns
t19
Write Command Hold
0.45 t1 - 3
ns
t20
Write Data Setup
0.45 t1 - 3
ns
t21
Write Data Hold
0.45 t1 - 3
ns
t22
MD Tri-state
t23
CAS# to WE# active during Read-Write cycle
t24
Write Command Setup during Read-Write cycle
t25
t26
0.45 t1
t1- 5
0.45t1 + 21
ns
ns
1 t1 - 3
ns
1.45 t1- 3
ns
Last Read Data Setup referenced from WE# during
Read-Write cycle
10
ns
Bus Tri-state from WE# during Read-Write cycle
0
SED1355
X23A-A-001-11
t1- 5
ns
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 67
7.3.2 EDO-DRAM CAS Before RAS Refresh Timing
t1
Memory
Clock
t2
t3
RAS#
t4
t5
t6
CAS#
Figure 7-16: EDO-DRAM CAS Before RAS Refresh Timing
Table 7-16: EDO-DRAM CAS Before RAS Refresh Timing
Symbol
t1
t2
t3
t4
Parameter
Internal memory clock period
Min
25
Max
Units
ns
RAS# precharge time (REG[22h] bits 3-2 = 00)
2t1 - 3
ns
RAS# precharge time (REG[22h] bits 3-2 = 01)
1.45t1 - 3
ns
RAS# precharge time (REG[22h] bits 3-2 = 10)
1t1 - 3
ns
RAS# pulse width (REG[22h] bit 6-5 = 00 and bits 3-2
= 00)
3 t1 - 3
ns
RAS# pulse width (REG[22h] bit 6-5 = 00 and bits 3-2
= 01)
3.45 t1 - 3
ns
RAS# pulse width (REG[22h] bit 6-5 = 00 and bits 3-2
= 10)
4 t1 - 3
ns
RAS# pulse width (REG[22h] bit 6-5 = 01 and bits 3-2
= 00)
2 t1 - 3
ns
RAS# pulse width (REG[22h] bit 6-5 = 01 and bits 3-2
= 01)
2.45 t1 - 3
ns
RAS# pulse width (REG[22h] bit 6-5 = 01 and bits 3-2
= 10)
3 t1 - 3
ns
RAS# pulse width (REG[22h] bit 6-5 = 10 and bits 3-2
= 00)
1 t1 - 3
ns
RAS# pulse width (REG[22h] bit 6-5 = 10 and bits 3-2
= 01)
1.45 t1 - 3
ns
RAS# pulse width (REG[22h] bit 6-5 = 10 and bits 3-2
= 10)
2 t1 - 3
ns
t2
ns
0.45 t1 - 3
ns
1 t1 - 3
ns
CAS# pulse width
CAS# setup time (REG[22h] bits 3-2 = 00 or 10)
t5
CAS# setup time (REG[22h] bits 3-2 = 01)
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 68
Epson Research and Development
Vancouver Design Center
Table 7-16: EDO-DRAM CAS Before RAS Refresh Timing
Symbol
t6
Parameter
Min
CAS# Hold to RAS# (REG[22h] bit 6-5 = 00 and bits
3-2 = 00)
2.45 t1 - 3
ns
CAS# Hold to RAS# (REG[22h] bit 6-5 = 00 and bits
3-2 = 01)
3 t1 - 3
ns
CAS# Hold to RAS# (REG[22h] bit 6-5 = 00 and bits
3-2 = 10)
3.45 t1 - 3
ns
CAS# Hold to RAS# (REG[22h] bit 6-5 = 01 and bits
3-2 = 00)
1.45 t1 - 3
ns
CAS# Hold to RAS# (REG[22h] bit 6-5 = 01 and bits
3-2 = 01)
2 t1 - 3
ns
CAS# Hold to RAS# (REG[22h] bit 6-5 = 01 and bits
3-2 = 10)
2.45 t1 - 3
ns
CAS# Hold to RAS# (REG[22h] bit 6-5 = 10 and bits
3-2 = 00)
0.45 t1 - 3
ns
CAS# Hold to RAS# (REG[22h] bit 6-5 = 10 and bits
3-2 = 01)
1 t1 - 3
ns
CAS# Hold to RAS# (REG[22h] bit 6-5 = 10 and bits
3-2 = 10)
1.45 t1 - 3
ns
SED1355
X23A-A-001-11
Max
Units
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 69
7.3.3 EDO-DRAM Self-Refresh Timing
Stopped for
suspend mode
t1
Restarted for
active mode
Memory
Clock
t2
RAS#
t3
t4
t5
CAS#
Figure 7-17: EDO-DRAM Self-Refresh Timing
Table 7-17: EDO-DRAM Self-Refresh Timing
Symbol
t1
t2
t3
t4
t5
Parameter
Min
Max
Units
25
ns
RAS# precharge time (REG[22h] bits 3-2 = 00)
2 t1 - 3
ns
RAS# precharge time (REG[22h] bits 3-2 = 01)
1.45t1 - 3
ns
RAS# precharge time (REG[22h] bits 3-2 = 10)
1 t1 - 3
ns
RAS# to CAS# precharge time (REG[22h] bits 3-2 = 00)
1.45t1 - 3
ns
RAS# to CAS# precharge time (REG[22h] bits 3-2 = 01 or 10)
0.45t1 - 3
ns
CAS# setup time (REG[22h] bits 3-2 = 00 or 10)
0.45t1 - 3
ns
CAS# setup time (REG[22h] bits 3-2 = 01)
1 t1 - 3
ns
CAS# precharge time (REG[22h] bits 3-2 = 00)
2 t1 - 3
ns
CAS# precharge time (REG[22h] bits 3-2 = 01 or 10)
1 t1 - 3
ns
Internal memory clock period
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 70
Epson Research and Development
Vancouver Design Center
7.3.4 FPM-DRAM Read/Write/Read-Write Timing
t1
Memory
Clock
t2
RAS#
t5
t4
t3
t6
t1
t7
CAS#
t8
MA
t9
R
t11 t10 t11
t10
C1
C2
C3
t12
t13
WE#(read)
t14
MD(read)
d1
d2
t16
t15
d3
t17
WE#(write)
t18 t19
MD(write)
d1
d2
t20
d3
Figure 7-18: FPM-DRAM Read/Write Timing
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 71
t1
Memory
Clock
RAS#
t5
t4
t3
t6
t1
t7
CAS#
t9
t8
MA
t10 t11
R
C2
C1
C3
C1
t12
t21
C2
C3
t16
t17
t18 t19
t20
WE#
t14
MD(read)
d1
t15
d2
MD(write)
d3
d1
d2
d3
Figure 7-19: FPM-DRAM Read-Write Timing
Table 7-18: FPM-DRAM Read/Write/Read-Write Timing
Symbol
t1
t2
t3
t4
Parameter
Min
Max
Units
Internal memory clock period
40
ns
Random read cycle REG[22h] bit 6-5 == 00
5t1
ns
Random read cycle REG[22h] bit 6-5 == 01
4t1
ns
Random read cycle REG[22h] bit 6-5 == 10
3t1
ns
RAS# precharge time (REG[22h] bits 3-2 = 00)
2 t1 - 3
ns
RAS# precharge time (REG[22h] bits 3-2 = 01)
1.45 t1 - 3
ns
RAS# precharge time (REG[22h] bits 3-2 = 10)
1 t1 - 3
ns
RAS# to CAS# delay time (REG[22h] bit 4 = 1 and
bits 3-2 = 00 or 10)
1.45 t1 - 3
ns
RAS# to CAS# delay time (REG[22h] bit 4 = 0 and
bits 3-2 = 00 or 10)
2.45 t1 - 3
ns
RAS# to CAS# delay time (REG[22h] bit 4 = 1 and
bits 3-2 = 01)
1t1 - 3
ns
RAS# to CAS# delay time (REG[22h] bit 4 = 0 and
bits 3-2 = 01)
2t1 - 3
ns
t5
CAS# precharge time
0.45 t1 - 3
ns
t6
CAS# pulse width
0.45 t1 - 3
ns
t7
RAS# hold time
0.45 t1 - 3
ns
Row address setup time (REG[22h] bits 3-2 = 00)
2 t1 - 3
ns
Row address setup time (REG[22h] bits 3-2 = 01)
1.45 t1 - 3
ns
Row address setup time (REG[22h] bits 3-2 = 10)
1 t1 - 3
ns
t8
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 72
Epson Research and Development
Vancouver Design Center
Table 7-18: FPM-DRAM Read/Write/Read-Write Timing
Symbol
Parameter
Row address hold time (REG[22h] bits 3-2 = 00 or
10)
Min
Max
Units
t1 - 3
ns
Row address hold time (REG[22h] bits 3-2 = 01)
0.45 1t1 - 3
ns
t10
Column address setup time
0.45 t1 - 3
ns
t11
Column address hold time
0.45 t1 - 3
ns
Read Command Setup (REG[22h] bit 4 = 0 and bits
3-2 = 00)
4.45 t1 - 3
ns
Read Command Setup (REG[22h] bit 4 = 0 and bits
3-2 = 01 or 10)
3.45 t1 - 3
ns
Read Command Setup (REG[22h] bit 4 = 1 and bits
3-2 = 00)
3.45 t1 - 3
ns
Read Command Setup (REG[22h] bit 4 = 1 and bits
3-2 = 01 or 10)
2.45 t1 - 3
ns
Read Command Hold (REG[22h] bit 4 = 0 and bits 32 = 00)
4 t1 - 3
ns
Read Command Hold (REG[22h] bit 4 = 0 and bits 32 = 01 or 10)
3 t1 - 3
ns
Read Command Hold (REG[22h] bit 4 = 1 and bits 32 = 00)
3 t1 - 3
ns
Read Command Hold (REG[22h] bit 4 = 1 and bits 32 = 01 or 10)
2 t1 - 3
ns
ns
t9
t12
t13
t14
Read Data Setup referenced from CAS#
5
t15
Bus Tri-State
3
t1- 5
ns
t16
Write Command Setup
0.45 t1- 3
ns
t17
Write Command Hold
0.45 t1 - 3
ns
t18
Write Data Setup
0.45 t1 - 3
ns
t19
Write Data Hold
0.45 t1 - 3
ns
t20
MD Tri-state
t21
CAS# to WE# active during Read-Write cycle
SED1355
X23A-A-001-11
0.45 t1
0.45 t1 - 3
0.45t1 + 21
ns
ns
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 73
7.3.5 FPM-DRAM CAS Before RAS Refresh Timing
t1
Memory
Clock
t2
t3
RAS#
t4
t5
t6
CAS#
Figure 7-20: FPM-DRAM CAS Before RAS Refresh Timing
Table 7-19: FPM-DRAM CAS Before RAS Refresh Timing
Symbol
t1
t2
t3
t4
t5
t6
Parameter
Internal memory clock period
Min
40
Max
Units
ns
RAS# precharge time (REG[22h] bits 3-2 = 00)
2.45 t1 - 3
ns
RAS# precharge time (REG[22h] bits 3-2 = 01 or 10)
1.45 t1 - 3
ns
RAS# pulse width (REG[22h] bits 6-5 = 00 and bits 32 = 00)
2.45 t1 - 3
ns
RAS# pulse width (REG[22h] bits 6-5 = 00 and bits 32 = 01 or 10)
3.45 t1 - 3
ns
RAS# pulse width (REG[22h] bits 6-5 = 01 and bits 32 = 00)
1.45 t1 - 3
ns
RAS# pulse width (REG[22h] bits 6-5 = 01 and bits 32 = 01 or 10)
2.45 t1 - 3
ns
RAS# pulse width (REG[22h] bits 6-5 = 10 and bits 32 = 00)
0.45 t1 - 3
ns
RAS# pulse width (REG[22h] bits 6-5 = 10 and bits 32 = 01 or 10)
1.45 t1 - 3
ns
CAS# pulse width (REG[22h] bits 3-2 = 00)
2 t1 - 3
ns
CAS# pulse width (REG[22h] bits 3-2 = 01 or 10)
1 t1 - 3
CAS# Setup to RAS#
0.45 t1 - 3
ns
CAS# Hold to RAS# (REG[22h] bits 6-5 = 00 and bits
3-2 = 00)
2.45 t1 - 3
ns
CAS# Hold to RAS# (REG[22h] bits 6-5 = 00 and bits
3-2 = 01 or 10)
3.45 t1 - 3
ns
CAS# Hold to RAS# (REG[22h] bits 6-5 = 01 and bits
3-2 = 00)
1.45 t1 - 3
ns
CAS# Hold to RAS# (REG[22h] bits 6-5 = 01 and bits
3-2 = 01 or 10)
2.45 t1 - 3
ns
CAS# Hold to RAS# (REG[22h] bits 6-5 = 10 and bits
3-2 = 00)
0.45 t1 - 3
ns
CAS# Hold to RAS# (REG[22h] bits 6-5 = 10 and bits
3-2 = 01 or 10)
1.45 t1 - 3
ns
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 74
Epson Research and Development
Vancouver Design Center
7.3.6 FPM-DRAM Self-Refresh Timing
Stopped for
suspend mode
t1
Restarted for
active mode
Memory
Clock
t2
RAS#
t3
t4
CAS#
Figure 7-21: FPM-DRAM Self-Refresh Timing
Table 7-20: FPM-DRAM CBR Self-Refresh Timing
Symbol
t1
t2
t3
t4
Parameter
Min
Max
Units
40
ns
RAS# precharge time (REG[22h] bits 3-2 = 00)
2.45 t1 - 1
ns
RAS# precharge time (REG[22h] bits 3-2 = 01 or 10)
1.45 t1 - 1
ns
Internal memory clock
RAS# to CAS# precharge time (REG[22h] bits 3-2 = 00)
2 t1
ns
RAS# to CAS# precharge time (REG[22h] bits 3-2 = 01 or 10)
1 t1
ns
0.45 t1 - 2
ns
CAS# setup time (CAS# before RAS# refresh)
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 75
7.4 Power Sequencing
7.4.1 LCD Power Sequencing
SUSPEND# or
LCD Enable Bit
t1
t5
t6
LCDPWR
t2
t3
FPFRAME
FPLINE
FPSHIFT
FPDATA
DRDY
t4
t7
CLKI
Figure 7-22: LCD Panel Power Off / Power On Timing. Drawn with LCDPWR set to active high polarity
Table 7-21: LCD Panel Power Off/ Power On
Symbol
Parameter
t1
SUSPEND# or LCD ENABLE BIT low to LCDPWR off
t2
SUSPEND# or LCD ENABLE BIT low to FPFRAME inactive
Min
t3
FPFRAME inactive to FPLINE, FPSHIFT, FPDATA, DRDY inactive
128
t4
SUSPEND# to CLKI inactive
130
t5
SUSPEND# or LCD ENABLE BIT high to FPLINE, FPSHIFT,
FPDATA, DRDY active
t6
FPLINE, FPSHIFT, FPDATA, DRDY active to LCDPWR, on and
FPFRAME active
t7
CLKI active to SUSPEND# inactive
Max
2TFPFRAME +
8TPCLK
1
Units
ns
Frames
Frames
Frames
TFPFRAME +
8TPCLK
ns
128
Frames
0
ns
Note
Where TFPFRAME is the period of FPFRAME and TPCLK is the period of the pixel clock.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 76
Epson Research and Development
Vancouver Design Center
7.4.2 Power Save Status
Power Save
t2
t1
Power Save Status Bit
t3
Memory Access
allowed
not allowed
allowed
Figure 7-23: Power Save Status and Local Bus Memory Access Relative to Power Save Mode
Note
Power Save can be initiated through either the SUSPEND# pin or Software Suspend Enable Bit.
Table 7-22: Power Save Status and Local Bus Memory Access Relative to Power Save Mode
Symbol
Parameter
Min
Max
Units
129
130
Frames
t1
Power Save initiated to rising edge of Power Save Status and the
last time memory access by the local bus may be performed.
t2
Power Save deactivated to falling edge of Power Save Status
12
MCLK
t3
Falling edge of Power Save Status to the earliest time the local bus
may perform a memory access
8
MCLK
Note
It is recommended that memory access not be performed after a Power Save Mode has been
initiated.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 77
7.5 Display Interface
7.5.1 4-Bit Single Monochrome Passive LCD Panel Timing
VDP
VNDP
FPFRAME
FPLINE
MOD
LINE1
UD[3:0]
LINE2
LINE3
LINE4
LINE239 LINE240
LINE1
LINE2
FPLINE
MOD
HDP
HNDP
FPSHIFT
UD3
1-1
1-5
1-317
UD2
1-2
1-6
1-318
UD1
1-3
1-7
1-319
UD0
1-4
1-8
1-320
* Diagram drawn with 2 FPLINE vertical blank period
Example timing for a 320x240 panel
Figure 7-24: 4-Bit Single Monochrome Passive LCD Panel Timing
VDP =
VNDP =
HDP =
HNDP =
Vertical Display Period
Vertical Non-Display Period
Horizontal Display Period
Horizontal Non-Display Period
Hardware Functional Specification
Issue Date: 99/05/18
= (REG[09h] bits [1:0], REG[08h] bits [7:0]) + 1
= (REG[0Ah] bits [5:0]) + 1
= ((REG[04h] bits [6:0]) + 1)*8Ts
= ((REG[05h] bits [4:0]) + 1)*8Ts
SED1355
X23A-A-001-11
Page 78
Epson Research and Development
Vancouver Design Center
t1
Sync Timing
t2
FPFRAME
t4
t3
FPLINE
t5
MOD
Data Timing
FPLINE
t6
t7
t9
t8
t10
t11
t12
FPSHIFT
t13
t14
1
UD[3:0]
2
Figure 7-25: 4-Bit Single Monochrome Passive LCD Panel A.C. Timing
Table 7-23: 4-Bit Single Monochrome Passive LCD Panel A.C. Timing
Symbol
t1
t2
FPFRAME hold from FPLINE pulse trailing edge
t3
FPLINE pulse width
Min
note 2
Typ
Max
Units
14
Ts (note 1)
9
Ts
t4
FPLINE period
note 3
t5
MOD delay from FPLINE pulse trailing edge
note 4
t6
FPSHIFT falling edge to FPLINE pulse leading edge
note 5
t7
FPLINE pulse trailing edge to FPSHIFT falling edge
t10 + t11
Ts
4
Ts
t8
FPSHIFT period
t9
FPSHIFT falling edge to FPLINE pulse trailing edge
note 6
t10
FPLINE pulse trailing edge to FPSHIFT rising edge
20
Ts
t11
FPSHIFT pulse width high
2
Ts
t12
FPSHIFT pulse width low
2
Ts
t13
UD[3:0] setup to FPSHIFT falling edge
2
Ts
UD[3:0] hold to FPSHIFT falling edge
2
Ts
t14
1.
2.
3.
4.
5.
6.
Parameter
FPFRAME setup to FPLINE pulse trailing edge
Ts
t1min
t4min
t5min
t6min
t9min
= pixel clock period = memory clock, [memory clock]/2, [memory clock]/3, [memory clock]/4 (see REG[19h] bits [1:0])
= t4min - 14Ts
= [((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0]) + 1)*8] Ts
= [(((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0]) + 1)*8)-1] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 27] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 18] Ts
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 79
7.5.2 8-Bit Single Monochrome Passive LCD Panel Timing
VDP
VNDP
FPFRAME
FPLINE
MOD
LINE1
UD[3:0], LD[3:0]
LINE2
LINE3
LINE4
LINE479 LINE480
LINE1
LINE2
FPLINE
MOD
HDP
HNDP
FPSHIFT
UD3
1-1
1-9
1-633
UD2
1-2
1-10
1-634
UD1
1-3
1-11
1-635
UD0
1-4
1-12
1-636
LD3
1-5
1-13
1-637
LD2
1-6
1-14
1-638
LD1
1-7
1-15
1-639
LD0
1-8
1-16
1-640
* Diagram drawn with 2 FPLINE vertical blank period
Example timing for a 640x480 panel
Figure 7-26: 8-Bit Single Monochrome Passive LCD Panel Timing
VDP
VNDP
HDP
HNDP
= Vertical Display Period
= Vertical Non-Display Period
= Horizontal Display Period
= Horizontal Non-Display Period
Hardware Functional Specification
Issue Date: 99/05/18
= (REG[09h] bits [1:0], REG[08h] bits [7:0]) + 1
= (REG[0Ah] bits [5:0]) + 1
= ((REG[04h] bits [6:0]) + 1)*8Ts
= ((REG[05h] bits [4:0]) + 1)*8Ts
SED1355
X23A-A-001-11
Page 80
Epson Research and Development
Vancouver Design Center
t1
t2
Sync Timing
FPFRAME
t4
t3
FPLINE
t5
MOD
Data Timing
FPLINE
t6
t7
t9
t8
t10
t11
t12
FPSHIFT
t13
UD[3:0]
LD[3:0]
t14
1
2
Figure 7-27: 8-Bit Single Monochrome Passive LCD Panel A.C. Timing
Table 7-24: 8-Bit Single Monochrome Passive LCD Panel A.C. Timing
Symbol
t1
t2
t3
t4
t5
t6
t7
t8
t9
t10
t11
t12
t13
t14
1.
2.
3.
4.
5.
6.
Ts
t1min
t4min
t5min
t6min
t9min
Parameter
FPFRAME setup to FPLINE pulse trailing edge
FPFRAME hold from FPLINE pulse trailing edge
FPLINE pulse width
FPLINE period
MOD delay from FPLINE pulse trailing edge
FPSHIFT falling edge to FPLINE pulse leading edge
FPLINE pulse trailing edge to FPSHIFT falling edge
FPSHIFT period
FPSHIFT falling edge to FPLINE pulse trailing edge
FPLINE pulse trailing edge to FPSHIFT rising edge
FPSHIFT pulse width high
FPSHIFT pulse width low
UD[3:0], LD[3:0] setup to FPSHIFT falling edge
UD[3:0], LD[3:0] hold to FPSHIFT falling edge
Min
note 2
14
9
note 3
note 4
note 5
t10 + t11
8
note 6
20
4
4
4
4
Typ
Max
Units
Ts (note 1)
Ts
Ts
Ts
Ts
Ts
Ts
Ts
Ts
= pixel clock period = memory clock, [memory clock]/2, [memory clock]/3, [memory clock]/4 (see REG[19h] bits [1:0])
= t4min - 14Ts
= [((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0]) + 1)*8] Ts
= [(((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0]) + 1)*8)-1] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 25] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 16] Ts
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 81
7.5.3 4-Bit Single Color Passive LCD Panel Timing
VNDP
VDP
FPFRAME
FPLINE
MOD
UD[3:0]
LINE1
LINE2
LINE3
LINE4
LINE479 LINE480
LINE1
LINE2
FPLINE
MOD
HDP
HNDP
FPSHIFT
UD3
1-R1
1-G2
1-B3
1-B319
UD2
1-G1
1-B2
1-R4
1-R320
UD1
1-B1
1-R3
1-G4
1-G320
UD0
1-R2
1-G3
1-B4
1-B320
* Diagram drawn with 2 FPLINE vertical blank period
Example timing for a 640x480 panel
Figure 7-28: 4-Bit Single Color Passive LCD Panel Timing
VDP
VNDP
HDP
HNDP
= Vertical Display Period
= Vertical Non-Display Period
= Horizontal Display Period
= Horizontal Non-Display Period
Hardware Functional Specification
Issue Date: 99/05/18
= (REG[09h] bits [1:0], REG[08h] bits [7:0]) + 1
= (REG[0Ah] bits [5:0]) + 1
= ((REG[04h] bits [6:0]) + 1)*8Ts
= ((REG[05h] bits [4:0]) + 1)*8Ts
SED1355
X23A-A-001-11
Page 82
Epson Research and Development
Vancouver Design Center
t1
t2
Sync Timing
FPFRAME
t4
t3
FPLINE
t5
MOD
Data Timing
FPLINE
t6
t7
t9
t8
t10
t11
t12
FPSHIFT
t13
UD[3:0]
t14
1
2
Figure 7-29: 4-Bit Single Color Passive LCD Panel A.C. Timing
Table 7-25: 4-Bit Single Color Passive LCD Panel A.C. Timing
Symbol
Parameter
t1
FPFRAME setup to FPLINE pulse trailing edge
t2
FPFRAME hold from FPLINE pulse trailing edge
t3
1.
2.
3.
4.
5.
6.
FPLINE pulse width
Min
note 2
Typ
Max
Units
14
Ts (note 1)
9
Ts
t4
FPLINE period
note 3
t5
MOD delay from FPLINE pulse trailing edge
note 4
t6
FPSHIFT falling edge to FPLINE pulse leading edge
note 5
t7
FPLINE pulse trailing edge to FPSHIFT falling edge
t10 + t11
Ts
1
Ts
t8
FPSHIFT period
t9
FPSHIFT falling edge to FPLINE pulse trailing edge
note 6
t10
FPLINE pulse trailing edge to FPSHIFT rising edge
21
Ts
t11
FPSHIFT pulse width high
0.45
Ts
t12
FPSHIFT pulse width low
0.45
Ts
t13
UD[3:0], setup to FPSHIFT falling edge
0.45
Ts
t14
UD[3:0], hold from FPSHIFT falling edge
0.45
Ts
Ts
t1min
t4min
t5min
t6min
t9min
= pixel clock period = memory clock, [memory clock]/2, [memory clock]/3, [memory clock]/4 (see REG[19h] bits [1:0])
= t4min - 14Ts
= [((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0]) + 1)*8] Ts
=[(((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0]) + 1)*8)-1] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 28] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 19] Ts
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 83
7.5.4 8-Bit Single Color Passive LCD Panel Timing (Format 1)
VNDP
VDP
FPFRAME
FPLINE
UD[3:0], LD[3:0]
LINE1
LINE2
LINE3
LINE4
LINE479 LINE480
LINE1
LINE2
FPLINE
HDP
HNDP
FPSHIFT
FPSHIFT2
UD3
1-R1
1-G1
1-G6
1-B6
1-B11
1-R12
1-R636
UD2
1-B1
1-R2
1-R7
1-G7
1-G12
1-B12
1-B636
UD1
1-G2
1-B2
1-B7
1-R8
1-R13
1-G13
1-G637
UD0
1-R3
1-G3
1-G8
1-B8
1-B13
1-R14
1-R638
LD3
1-B3
1-R4
1-R9
1-G9
1-G14
1-B14
1-B638
LD2
1-G4
1-B4
1-B9
1-R10
1-R15
1-G15
1-G639
LD1
1-R5
1-G5
1-G10
1-B10
1-B15
1-R16
1-R640
LD0
1-B5
1-R6
1-R11
1-G11 1-G16
1-B16
1-B640
* Diagram drawn with 2 FPLINE vertical blank period
Example timing for a 640x480 panel
Figure 7-30: 8-Bit Single Color Passive LCD Panel Timing (Format 1)
VDP
VNDP
HDP
HNDP
= Vertical Display Period
= Vertical Non-Display Period
= Horizontal Display Period
= Horizontal Non-Display Period
Hardware Functional Specification
Issue Date: 99/05/18
= (REG[09h] bits [1:0], REG[08h] bits [7:0]) + 1
= (REG[0Ah] bits [5:0]) + 1
= ((REG[04h] bits [6:0]) + 1)*8Ts
= ((REG[05h] bits [4:0]) + 1)*8Ts
SED1355
X23A-A-001-11
Page 84
Epson Research and Development
Vancouver Design Center
t1
t2
Sync Timing
FPFRAME
t4
t3
FPLINE
Data Timing
FPLINE
t5a
t5b
t6
t8a
t7
t9
t10
t11
FPSHIFT
t8b
FPSHIFT2
t12
UD[3:0]
LD[3:0]
t13
1
2
Figure 7-31: 8-Bit Single Color Passive LCD Panel A.C. Timing (Format 1)
Table 7-26: 8-Bit Single Color Passive LCD Panel A.C. Timing (Format 1)
Symbol
t1
1.
2.
3.
4.
5.
6.
7.
FPFRAME setup to FPLINE pulse trailing edge
Parameter
Min
note 2
Typ
Max
Units
t2
FPFRAME hold from FPLINE pulse trailing edge
14
Ts (note 1)
t3
FPLINE pulse width
9
Ts
t4
FPLINE period
note 3
t5a
FPSHIFT2 falling edge to FPLINE pulse leading edge
note 4
t5b
FPSHIFT falling edge to FPLINE pulse leading edge
note 5
t6
FPLINE pulse trailing edge to FPSHIFT2 rising, FPSHIFT falling
edge
t9 + t10
Ts
t7
FPSHIFT2, FPSHIFT period
4
Ts
t8a
FPSHIFT falling edge to FPLINE pulse trailing edge
note 6
t8b
FPSHIFT2 falling edge to FPLINE pulse trailing edge
note 7
t9
FPLINE pulse trailing edge to FPSHIFT rising edge
20
Ts
t10
FPSHIFT2, FPSHIFT pulse width high
2
Ts
t11
FPSHIFT2, FPSHIFT pulse width low
2
Ts
t12
UD[3:0], LD[3:0] setup to FPSHIFT2 rising, FPSHIFT falling edge
1
Ts
t13
UD[3:0], LD[3:0] hold from FPSHIFT2 rising, FPSHIFT falling edge
1
Ts
Ts
t1min
t4min
t5min
t5min
t8min
t8min
= pixel clock period = memory clock, [memory clock]/2, [memory clock]/3, [memory clock]/4 (see REG[19h] bits [1:0])
= t4min - 14Ts
= [((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0]) + 1)*8] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 27] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 29] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 20] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 18] Ts
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 85
7.5.5 8-Bit Single Color Passive LCD Panel Timing (Format 2)
VDP
VNDP
FPFRAME
FPLINE
MOD
UD[3:0], LD[3:0]
LINE1
LINE2
LINE3
LINE4
LINE479 LINE480
LINE1
LINE2
FPLINE
MOD
HDP
HNDP
FPSHIFT
UD3
1-R1
1-B3
1-G6
1-G638
UD2
1-G1
1-R4
1-B6
1-B638
UD1
1-B1
1-G4
1-R7
1-R639
UD0
1-R2
1-B4
1-G7
1-G639
LD3
1-G2
1-R5
1-B7
1-B639
LD2
1-B2
1-G5
1-R8
1-R640
LD1
1-R3
1-B5
1-G8
1-G640
LD0
1-G3
1-R6
1-B8
1-B640
* Diagram drawn with 2 FPLINE vertical blank period
Example timing for a 640x480 panel
Figure 7-32: 8-Bit Single Color Passive LCD Panel Timing (Format 2)
VDP
VNDP
HDP
HNDP
= Vertical Display Period
= Vertical Non-Display Period
= Horizontal Display Period
= Horizontal Non-Display Period
Hardware Functional Specification
Issue Date: 99/05/18
= (REG[09h] bits [1:0], REG[08h] bits [7:0]) + 1
= (REG[0Ah] bits [5:0]) + 1
= ((REG[04h] bits [6:0]) + 1)*8Ts
= ((REG[05h] bits [4:0]) + 1)*8Ts
SED1355
X23A-A-001-11
Page 86
Epson Research and Development
Vancouver Design Center
t1
Sync Timing
t2
FPFRAME
t3
t4
FPLINE
t5
MOD
Data Timing
FPLINE
t6
t8
t7
t9
t14
t11
t10
FPSHIFT
t12
UD[3:0]
LD[3:0]
t13
1
2
Figure 7-33: 8-Bit Single Color Passive LCD Panel A.C. Timing (Format 2)
Table 7-27: 8-Bit Single Color Passive LCD Panel A.C. Timing (Format 2)
Symbol
t1
FPFRAME setup to FPLINE pulse trailing edge
Min
note 2
t2
FPFRAME hold from FPLINE pulse trailing edge
14
t3
FPLINE period
t4
FPLINE pulse width
t5
MOD delay from FPLINE pulse trailing edge
note 4
t6
FPSHIFT falling edge to FPLINE pulse leading edge
note 5
t7
FPSHIFT falling edge to FPLINE pulse trailing edge
note 6
t8
FPLINE pulse trailing edge to FPSHIFT falling edge
t14 + 2
1.
2.
3.
4.
5.
6.
Parameter
Typ
Max
Units
Ts (note 1)
note 3
9
Ts
t9
FPSHIFT period
2
Ts
t10
FPSHIFT pulse width low
1
Ts
t11
FPSHIFT pulse width high
1
Ts
t12
UD[3:0], LD[3:0] setup to FPSHIFT falling edge
1
Ts
t13
UD[3:0], LD[3:0] hold to FPSHIFT falling edge
1
Ts
t14
FPLINE pulse trailing edge to FPSHIFT rising edge
20
Ts
Ts
t1min
t3min
t5min
t6min
t7min
= pixel clock period = memory clock, [memory clock]/2, [memory clock]/3, [memory clock]/4 (see REG[19h] bits [1:0])
= t3min - 14Ts
= [((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0]) + 1)*8] Ts
= [(((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0]) + 1)*8)-1] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 28] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 19] Ts
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 87
7.5.6 16-Bit Single Color Passive LCD Panel Timing
VDP
VNDP
FPFRAME
FPLINE
MOD
UD[7:0], LD[7:0]
LINE1
LINE2
LINE3
LINE4
LINE479 LINE480
LINE1
LINE2
FPLINE
MOD
HDP
HNDP
FPSHIFT
UD7
1-R1
1-G6
1-B11
1-G635
1-G12
1-G636
UD6
1-B1
1-R7
UD5
1-G2
1-B7
1-R13
1-R637
UD4
1-R3
1-G8
1-B13
1-B637
UD3
1-B3
1-R9
1-G14
1-G638
UD2
1-G4
1-B9
1-R15
1-R639
UD1
1-R5
1-G10 1-B15
1-B639
UD0
1-B5
1-R11
1-G16
1-G640
LD7
1-G1
1-B6
1-R12
1-R636
LD6
1-R2
1-G7
1-B12
1-B636
LD5
1-B2
1-R8
1-G13
1-G637
LD4
1-G3
1-B8
1-R14
1-R638
1-B638
LD3
1-R4
1-G9
1-B14
LD2
1-B4
1-R10
1-G15
1-G639
LD1
1-G5
1-B10 1-R16
1-R640
LD0
1-R6
1-G11
1-B640
1-B16
* Diagram drawn with 2 FPLINE vertical blank period
Example timing for a 640x480 panel
Figure 7-34: 16-Bit Single Color Passive LCD Panel Timing
VDP
VNDP
HDP
HNDP
= Vertical Display Period
= Vertical Non-Display Period
= Horizontal Display Period
= Horizontal Non-Display Period
Hardware Functional Specification
Issue Date: 99/05/18
= (REG[09h] bits [1:0], REG[08h] bits [7:0]) + 1
= (REG[0Ah] bits [5:0]) + 1
= ((REG[04h] bits [6:0]) + 1)*8Ts
= ((REG[05h] bits [4:0]) + 1)*8Ts
SED1355
X23A-A-001-11
Page 88
Epson Research and Development
Vancouver Design Center
t1
Sync Timing
t2
FPFRAME
t3
t4
FPLINE
t5
MOD
Data Timing
FPLINE
t6
t8
t7
t9
t14
t10
t11
FPSHIFT
t12
UD[7:0]
LD[7:0]
t13
1
2
Figure 7-35: 16-Bit Single Color Passive LCD Panel A.C. Timing
Table 7-28: 16-Bit Single Color Passive LCD Panel A.C. Timing
Symbol
t1
1.
2.
3.
4.
5.
6.
Parameter
FPFRAME setup to FPLINE pulse trailing edge
Min
note 2
t2
FPFRAME hold from FPLINE pulse trailing edge
t3
FPLINE period
14
t4
FPLINE pulse width
t5
MOD delay from FPLINE pulse trailing edge
note 4
t6
FPSHIFT falling edge to FPLINE pulse leading edge
note 5
t7
FPSHIFT falling edge to FPLINE pulse trailing edge
note 6
Typ
Max
Units
Ts (note 1)
note 3
9
Ts
t8
FPLINE pulse trailing edge to FPSHIFT falling edge
t14 + 3
Ts
t9
FPSHIFT period
5
Ts
t10
FPSHIFT pulse width low
2
Ts
t11
FPSHIFT pulse width high
2
Ts
t12
UD[7:0], LD[7:0] setup to FPSHIFT falling edge
2
Ts
t13
UD[7:0], LD[7:0] hold to FPSHIFT falling edge
2
Ts
t14
FPLINE pulse trailing edge to FPSHIFT rising edge
20
Ts
Ts
t1min
t3min
t5min
t6min
t7min
= pixel clock period = memory clock, [memory clock]/2, [memory clock]/3, [memory clock]/4 (see REG[19h] bits [1:0])
= t3min - 14Ts
= [((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0]) + 1)*8] Ts
= [(((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0]) + 1)*8)-1] Ts
= [(REG[05h] bits [4:0]) + 1)*8 - 27] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 18] Ts
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 89
7.5.7 8-Bit Dual Monochrome Passive LCD Panel Timing
VDP
VNDP
FPFRAME
FPLINE
MOD
UD[3:0], LD[3:0]
LINE 1/241
LINE 2/242
LINE 3/243
LINE 4/244
LINE 239/479 LINE 240/480
LINE 1/241
LINE 2/242
FPLINE
MOD
HNDP
HDP
FPSHIFT
UD3
1-1
1-5
1-637
UD2
1-2
1-6
1-638
UD1
1-3
1-7
1-639
UD0
1-4
1-8
1-640
LD3
241-1
241-5
241-637
LD2
241-2
241-6
241-638
LD1
241-3
241-7
241-639
LD0
241-4
241-8
241-640
* Diagram drawn with 2 FPLINE vertical blank period
Example timing for a 640x480 panel
Figure 7-36: 8-Bit Dual Monochrome Passive LCD Panel Timing
VDP
VNDP
HDP
HNDP
= Vertical Display Period
= Vertical Non-Display Period
= Horizontal Display Period
= Horizontal Non-Display Period
Hardware Functional Specification
Issue Date: 99/05/18
= (REG[09h] bits [1:0], REG[08h] bits [7:0]) + 1
= (REG[0Ah] bits [5:0]) + 1
= ((REG[04h] bits [6:0]) + 1)*8Ts
= ((REG[05h] bits [4:0]) + 1)*8Ts
SED1355
X23A-A-001-11
Page 90
Epson Research and Development
Vancouver Design Center
t1
Sync Timing
t2
FPFRAME
t4
t3
FPLINE
t5
MOD
Data Timing
FPLINE
t6
t8
t7
t9
t14
t10
t11
FPSHIFT
t12
UD[3:0]
LD[3:0]
t13
1
2
Figure 7-37: 8-Bit Dual Monochrome Passive LCD Panel A.C. Timing
Table 7-29: 8-Bit Dual Monochrome Passive LCD Panel A.C. Timing
Symbol
t1
t2
t3
t4
t5
t6
t7
t8
t9
t10
t11
t12
t13
t14
1.
2.
3.
4.
5.
6.
Ts
t1min
t3min
t5min
t6min
t7min
Parameter
FPFRAME setup to FPLINE pulse trailing edge
FPFRAME hold from FPLINE pulse trailing edge
FPLINE period
FPLINE pulse width
MOD delay from FPLINE pulse trailing edge
FPSHIFT falling edge to FPLINE pulse leading edge
FPSHIFT falling edge to FPLINE pulse trailing edge
FPLINE pulse trailing edge to FPSHIFT falling edge
FPSHIFT period
FPSHIFT pulse width low
FPSHIFT pulse width high
UD[3:0], LD[3:0] setup to FPSHIFT falling edge
UD[3:0], LD[3:0] hold to FPSHIFT falling edge
FPLINE pulse trailing edge to FPSHIFT rising edge
Min
note 2
14
note 3
9
note 4
note 5
note 6
t14 + 2
4
2
2
2
2
12
Typ
Max
Units
Ts (note 1)
Ts
Ts
Ts
Ts
Ts
Ts
Ts
Ts
= pixel clock period = memory clock, [memory clock]/2, [memory clock]/3, [memory clock]/4 (see REG[19h] bits [1:0])
= t3min - 14Ts
= [((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0]) + 1)*8] Ts
= [(((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0]) + 1)*8)-1] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 19] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 10] Ts
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 91
7.5.8 8-Bit Dual Color Passive LCD Panel Timing
VDP
VNDP
FPFRAME
FPLINE
MOD
UD[3:0], LD[3:0]
LINE 1/241
LINE 2/242
LINE 3/243
LINE 4/244
LINE 239/479 LINE 240/480
LINE 1/241
LINE 2/242
FPLINE
MOD
HNDP
HDP
FPSHIFT
FPDAT7 (UD3)
1-R1
1-G2
1-B3
1-R 5
1-G6
1-B7
1-B639
FPDAT6 (UD2)
1-G1
1-B2
1-R4
1-G5
1-B6
1-R8
1-R640
FPDAT5 (UD1)
1-B1
1-R 3
1-G4
1-B 5
1-R7
1-G8
1-G640
FPDAT4 (UD0)
1-R2
1-G3
1-B4
1-R6
1-G7
1-B8
1-B640
241-R5 241-G6 241-B7
2 41B639
FPDAT2 (UD2)
241-G1 24 1-B2 241-R 4 241-G5 241-B6 241-R8
241R640
FPDAT1 (UD1)
241-B1 241-R3 241-G4 241-B5 241-R7 241-G8
241G640
FPDAT0 (UD0)
241-R 2 241-G3 241-B4 241-R 6 241-G7 241-B8
2 41B640
FPDAT3 (LD3)
241-R 1 241-G2 241-B 3
* Diagram drawn with 2 FPLINE vertical blank period
Example timing for a 640x480 panel
Figure 7-38: 8-Bit Dual Color Passive LCD Panel Timing
VDP
VNDP
HDP
HNDP
= Vertical Display Period
= Vertical Non-Display Period
= Horizontal Display Period
= Horizontal Non-Display Period
Hardware Functional Specification
Issue Date: 99/05/18
= (REG[09h] bits [1:0], REG[08h] bits [7:0]) + 1
= (REG[0Ah] bits [5:0]) + 1
= ((REG[04h] bits [6:0]) + 1)*8Ts
= ((REG[05h] bits [4:0]) + 1)*8Ts
SED1355
X23A-A-001-11
Page 92
Epson Research and Development
Vancouver Design Center
t1
t2
Sync Timing
FPFRAME
t4
t3
FPLINE
t5
MOD
Data Timing
FPLINE
t6
t8
t7
t9
t14
t11
t10
FPSHIFT
t12
UD[3:0]
LD[3:0]
t13
1
2
Figure 7-39: 8-Bit Dual Color Passive LCD Panel A.C. Timing
Table 7-30: 8-Bit Dual Color Passive LCD Panel A.C. Timing
Symbol
t1
1.
2.
3.
4.
5.
6.
Parameter
FPFRAME setup to FPLINE pulse trailing edge
Min
note 2
t2
FPFRAME hold from FPLINE pulse trailing edge
14
t3
FPLINE period
t4
FPLINE pulse width
t5
MOD delay from FPLINE pulse trailing edge
note 4
t6
FPSHIFT falling edge to FPLINE pulse leading edge
note 5
t7
FPSHIFT falling edge to FPLINE pulse trailing edge
note 6
t8
FPLINE pulse trailing edge to FPSHIFT falling edge
t14 + t11
Typ
Max
Units
Ts (note 1)
note 3
9
Ts
Ts
t9
FPSHIFT period
1
Ts
t10
FPSHIFT pulse width low
0.45
Ts
t11
FPSHIFT pulse width high
0.45
Ts
t12
UD[3:0], LD[3:0] setup to FPSHIFT falling edge
0.45
Ts
t13
UD[3:0], LD[3:0] hold to FPSHIFT falling edge
0.45
Ts
t14
FPLINE pulse trailing edge to FPSHIFT rising edge
13
Ts
Ts
t1min
t3min
t5min
t6min
t7min
= pixel clock period = memory clock, [memory clock]/2, [memory clock]/3, [memory clock]/4 (see REG[19h] bits [1:0])
= t3min - 14Ts
= [((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0]) + 1)*8] Ts
= [(((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0]) + 1)*8)-1] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 20] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 11] Ts
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 93
7.5.9 16-Bit Dual Color Passive LCD Panel Timing
VNDP
VDP
FPFRAME
FPLINE
MOD
UD[7:0], LD[7:0]
LINE 1/241
LINE 2/242
LINE 3/243
LINE 4/244
LINE 239/479 LINE 240/480
LINE 1/241
LINE 2/242
FPLINE
MOD
HNDP
HDP
FPSHIFT
UD7, LD7
1-R1,
241-R1
1-B3,
241-B 3
1-G638,
241-G638
UD6, LD6
1-G1,
241-G1
1-R4,
241-R4
1-B638,
241-B638
UD5, LD5
1-B1,
241-B 1
1-G4,
241-G 4
1-R639,
241-R639
UD4, LD4
1-R2,
241-R2
1-B4,
241-B 4
1-G639,
241-G63 9
UD3, LD3
1-G2,
241-G2
1-R5,
241-R5
1-B639,
241-B639
UD2, LD2
1-B2,
241-B 2
1-G5,
241-G 5
1-R640,
241-R640
UD1, LD1
1-R3,
241-R3
1-B5,
241-B5
1-G640,
241-G 640
UD0, LD0
1-G3,
241-G3
1-R6,
241-R6
1-B640,
241-B640
* Diagram drawn with 2 FPLINE vertical blank period
Example timing for a 640x480 panel
Figure 7-40: 16-Bit Dual Color Passive LCD Panel Timing
VDP
VNDP
HDP
HNDP
= Vertical Display Period
= Vertical Non-Display Period
= Horizontal Display Period
= Horizontal Non-Display Period
Hardware Functional Specification
Issue Date: 99/05/18
= (REG[09h] bits [1:0], REG[08h] bits [7:0]) + 1
= (REG[0Ah] bits [5:0]) + 1
= ((REG[04h] bits [6:0]) + 1)*8Ts
= ((REG[05h] bits [4:0]) + 1)*8Ts
SED1355
X23A-A-001-11
Page 94
Epson Research and Development
Vancouver Design Center
t1
t2
Sync Timing
FPFRAME
t4
t3
FPLINE
t5
MOD
Data Timing
FPLINE
t6
t8
t7
t9
t14
t11
t10
FPSHIFT
t12
UD[7:0]
LD[7:0]
t13
1
2
Figure 7-41: 16-Bit Dual Color Passive LCD Panel A.C. Timing
Table 7-31: 16-Bit Dual Color Passive LCD Panel A.C. Timing
Symbol
t1
t2
1.
2.
3.
4.
5.
6.
Parameter
FPFRAME setup to FPLINE pulse trailing edge
FPFRAME hold from FPLINE pulse trailing edge
t3
FPLINE period
t4
FPLINE pulse width
Min
note 2
14
Typ
Max
Units
Ts (note 1)
note 3
9
Ts
t5
MOD delay from FPLINE pulse trailing edge
note 4
t6
FPSHIFT falling edge to FPLINE pulse leading edge
note 5
t7
FPSHIFT falling edge to FPLINE pulse trailing edge
note 6
t8
FPLINE pulse trailing edge to FPSHIFT falling edge
t14 + 2
t9
FPSHIFT period
2
Ts
t10
FPSHIFT pulse width low
1
Ts
t11
FPSHIFT pulse width high
1
Ts
t12
UD[7:0], LD[7:0] setup to FPSHIFT falling edge
1
Ts
t13
UD[7:0], LD[7:0] hold to FPSHIFT falling edge
1
Ts
t14
FPLINE pulse trailing edge to FPSHIFT rising edge
12
Ts
Ts
t1min
t3min
t5min
t6min
t7min
= pixel clock period = memory clock, [memory clock]/2, [memory clock]/3, [memory clock]/4 (see REG[19h] bits [1:0])
= t3min - 14Ts
= [((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0]) + 1)*8] Ts
= [(((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0]) + 1)*8)-1] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 20] Ts
= [((REG[05h] bits [4:0]) + 1)*8 - 11] Ts
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 95
7.5.10 16-Bit TFT/D-TFD Panel Timing
VNDP
VDP
FPFRAME
FPLINE
R[5:1], G[5:0], B[5:1]
LINE480
LINE1
LINE480
DRDY
FPLINE
HDP
HNDP1
HNDP2
FPSHIFT
DRDY
R[5:1]
G[5:0]
B[5:1]
1-1
1-2
1-640
1-1
1-2
1-640
1-1
1-2
1-640
Note: DRDY is used to indicate the first pixel
Example Timing for 640x480 panel
Figure 7-42: 16-Bit TFT/D-TFD Panel Timing
VDP
VNDP
HDP
HNDP
= Vertical Display Period
= Vertical Non-Display Period
= Horizontal Display Period
= Horizontal Non-Display Period
Hardware Functional Specification
Issue Date: 99/05/18
= (REG[09h] bits [1:0], REG[08h] bits [7:0]) + 1
= (REG[0Ah] bits [5:0]) + 1
= ((REG[04h] bits [6:0]) + 1)*8Ts
= HNDP1 + HNDP2 = ((REG[05h] bits [4:0]) + 1)*8Ts
SED1355
X23A-A-001-11
Page 96
Epson Research and Development
Vancouver Design Center
t8
t9
FPFRAME
t12
FPLINE
t6
FPLINE
t15
t7
t17
DRDY
t14
t1
t2
t3
t11
t13
t16
FPSHIFT
t4
R[5:1]
G[5:0]
B[5:1]
t5
1
2
639
640
t10
Note: DRDY is used to indicate the first pixel
Figure 7-43: TFT/D-TFD A.C. Timing
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 97
Table 7-32: TFT/D-TFD A.C. Timing
Symbol
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Parameter
Min
1
Typ
Max
Units
Ts (note 1)
t1
FPSHIFT period
t2
FPSHIFT pulse width high
0.45
Ts
t3
FPSHIFT pulse width low
0.45
Ts
t4
data setup to FPSHIFT falling edge
0.45
Ts
0.45
Ts
t5
data hold from FPSHIFT falling edge
t6
FPLINE cycle time
note 2
t7
t8
FPLINE pulse width low
note 3
FPFRAME cycle time
note 4
t9
FPFRAME pulse width low
note 5
note 6
t10
horizontal display period
t11
FPLINE setup to FPSHIFT falling edge
t12
FPFRAME pulse leading edge to FPLINE pulse
leading edge phase difference
t13
DRDY to FPSHIFT falling edge setup time
0.45
note 7
0.45
t14
DRDY pulse width
note 8
t15
DRDY falling edge to FPLINE pulse leading
edge
note 9
t16
DRDY hold from FPSHIFT falling edge
t17
FPLINE pulse leading edge to DRDY active
Ts
t6min
t7min
t8 min
t9min
t10min
t12min
t14min
t15min
t17min
Ts
Ts
0.45
note 10
Ts
250
Ts
= pixel clock period = memory clock, [memory clock]/2, [memory clock]/3, [memory clock]/4 (see REG[19h] bits [1:0])
= [((REG[04h] bits [6:0])+1)*8 + ((REG[05h] bits [4:0])+1)*8] Ts
= [((REG[07h] bits [3:0])+1)*8] Ts
= [((REG[09h] bits [1:0], REG[08h] bits [7:0])+1) + ((REG[0Ah] bits [5:0])+1)] lines
= [((REG[0Ch] bits [2:0])+1)] lines
= [((REG[04h] bits [6:0])+1)*8] Ts
= [((REG[06h] bits [4:0])*8)+1] Ts
= [((REG[04h] bits [6:0])+1)*8] Ts
= [((REG[06h] bits [4:0])+1)*8 - 2] Ts
= [((REG[05h] bits [4:0])+1)*8 - ((REG[06h] bits [4:0])+1)*8 + 2]
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 98
Epson Research and Development
Vancouver Design Center
7.5.11 CRT Timing
VNDP
VDP
VRTC
HRTC
RED,GREEN,BLUE
LINE480
LINE1
LINE480
HRTC
HDP
HNDP1
1-1
RED,GREEN,BLUE
1-2
HNDP2
1-640
Example Timing for 640x480 CRT
Figure 7-44: CRT Timing
VDP
VNDP
HDP
HNDP
= Vertical Display Period
= Vertical Non-Display Period
= Horizontal Display Period
= Horizontal Non-Display Period
= (REG[09h] bits [1:0], REG[08h] bits [7:0]) + 1
= (REG[0Ah] bits [5:0]) + 1
= ((REG[04h] bits [6:0]) + 1)*8Ts
= ((REG[05h] bits [4:0]) + 1)*8Ts
= HNDP1 + HNDP2
Note
The signals RED, GREEN and BLUE are analog signals from the embedded DAC and represent
the color components which make up each pixel.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 99
t1
t2
VRTC
t3
HRTC
Figure 7-45: CRT A.C. Timing
Symbol
1.
2.
3.
Parameter
Min
Typ
t1
VRTC cycle time
note 1
t2
VRTC pulse width low
note 2
t3
VRTC falling edge to FPLINE falling edge
phase difference
note 3
Max
Units
t8 min = [((REG[09h] bits 1:0, REG[08h] bits 7:0)+1) + ((REG[0Ah] bits 6:0)+1)] lines
t9min = [((REG[0Ch] bits 2:0)+1)] lines
t12min = [((REG[06h] bits 4:0)+1)*8] Ts
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 100
Epson Research and Development
Vancouver Design Center
8 Registers
8.1 Register Mapping
The SED1355 registers are memory mapped. The system addresses the registers through the CS#,
M/R#, and AB[5:0] input pins. When CS# = 0 and M/R# = 0, the registers are mapped by address
bits AB[5:0], e.g. REG[00h] is mapped to AB[5:0] = 000000, REG[01h] is mapped to AB[5:0] =
000001. See the table below:
Table 8-1: SED1355 Addressing
CS#
M/R#
Access
Register access:
• REG[00h] is addressed when AB[5:0] = 0
• REG[01h] is addressed when AB[5:0] = 1
• REG[n] is addressed when AB[5:0] = n
0
0
0
1
Memory access: the 2M byte Display Buffer is addressed by
AB[20:0]
1
X
SED1355 not selected
8.2 Register Descriptions
Unless specified otherwise, all register bits are reset to 0 during power-on. Reserved bits should be
written 0 when programming unless otherwise noted.
8.2.1 Revision Code Register
Revision Code Register
REG[00h]
RO
Product Code Product Code Product Code Product Code Product Code Product Code Revision
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Code Bit 1
Revision
Code Bit 0
bits 7-2
Product Code Bits [5:0]
This is a read-only register that indicates the product code of the chip. The product code for the
SED1355 is 000011.
bits 1-0
Revision Code Bits [1:0]
This is a read-only register that indicates the revision code of the chip. The revision code for the
SED1355F0A is 00.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 101
8.2.2 Memory Configuration Registers
Memory Configuration Register
REG[01h]
n/a
bits 6-4
RW
Refresh Rate
Bit 2
Refresh Rate
Bit 1
Refresh Rate
Bit 0
n/a
WE# Control
n/a
Memory Type
DRAM Refresh Rate Select Bits [2:0]
These bits specify the divisor used to generate the DRAM refresh rate from the input clock (CLKI).
Table 8-2: DRAM Refresh Rate Selection
Example period for
Example Refresh Rate
256 refresh cycles at
for CLKI = 33MHz
CLKI = 33MHz
DRAM Refresh Rate
Select Bits [2:0]
CLKI Frequency
Divisor
000
64
520 kHz
0.5 ms
001
128
260 kHz
1 ms
010
256
130 kHz
2 ms
011
512
65 kHz
4 ms
100
1024
33 kHz
8 ms
101
2048
16 kHz
16 ms
110
4096
8 kHz
32 ms
111
8192
4 kHz
64 ms
bit 2
WE# Control
When this bit = 1, 2-WE# DRAM is selected.
When this bit = 0, 2-CAS# DRAM is selected.
bit 0
Memory Type
When this bit = 1, FPM-DRAM is selected.
When this bit = 0, EDO-DRAM is selected.
This bit should be changed only when there are no read/write DRAM cycles. This condition occurs
when all of the following are true: the Display FIFO is disabled (REG[23h] bit 7 = 1), and the Half
Frame Buffer is disabled (REG[1Bh] bit 0 = 1), and the Ink/Cursor is inactive
(Reg[27h] bits 7-6 = 00). This condition also occurs when the CRT and LCD enable bits (Reg[0Dh]
bits 1-0) have remained 0 since chip reset. For further programming information, see SED1355
Programming Notes and Examples, document number X23A-G-003-xx.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 102
Epson Research and Development
Vancouver Design Center
8.2.3 Panel/Monitor Configuration Registers
Panel Type Register
REG[02h]
EL Panel
Enable
RW
Panel Data
Width Bit 1
n/a
Panel Data
Width Bit 0
Panel Data
Color/Mono.
Format Select Panel Select
Dual/Single
Panel Select
TFT/ Passive
LCD Panel
Select
bit 7
EL Panel Mode Enable
When this bit = 1, EL Panel support mode is enabled. Every 262143 frames (approximately 1 hour
at 60Hz frame rate) the identical panel data is sent to two consecutive frames, i.e. the frame rate
modulation circuitry is frozen for one frame.
bits 5-4
Panel Data Width Bits [1:0]
These bits select the LCD interface data width as shown in the following table.
Table 8-3: Panel Data Width Selection
Panel Data Width Bits [1:0]
Passive LCD Panel Data
Width Size
TFT/D-TFD Panel Data Width
Size
00
4-bit
9-bit
01
8-bit
12-bit
10
16-bit
16-bit
11
Reserved
Reserved
bit 3
Panel Data Format Select
When this bit = 1, color passive LCD panel data format 2 is selected.
When this bit = 0, passive LCD panel data format 1 is selected.
bit 2
Color/Mono Panel Select
When this bit = 1, color passive LCD panel is selected.
When this bit = 0, monochrome passive LCD panel is selected.
bit 1
Dual/Single Panel Select
When this bit = 1, dual passive LCD panel is selected.
When this bit = 0, single passive LCD panel is selected.
bit 0
TFT/Passive LCD Panel Select
When this bit = 1, TFT/D-TFD panel is selected.
When this bit = 0, passive LCD panel is selected.
MOD Rate Register
REG[03h]
n/a
bits 5-0
SED1355
X23A-A-001-11
RW
n/a
MOD Rate
Bit 5
MOD Rate
Bit 4
MOD Rate
Bit 3
MOD Rate
Bit 2
MOD Rate
Bit 1
MOD Rate
Bit 0
MOD Rate Bits [5:0]
When the DRDY pin is configured as MOD, this register controls the toggle rate of the MOD output. When this register is zero, the MOD output signal toggles every FPFRAME. When this register
is non-zero, its value represents the number of FPLINE pulses between toggles of the MOD output
signal.
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 103
Horizontal Display Width Register
REG[04h]
n/a
RW
Horizontal
Horizontal
Horizontal
Horizontal
Horizontal
Horizontal
Horizontal
Display Width Display Width Display Width Display Width Display Width Display Width Display Width
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
bits 6-0
Horizontal Display Width Bits [6:0]
These bits specify the LCD panel and/or the CRT horizontal display width as follows.
Contents of this Register = (Horizontal Display Width ÷ 8) - 1
For passive LCD panels the Horizontal Display Width must be divisible by 16, and for TFT LCD
panels/CRTs the Horizontal Display Width must be divisible by 8. The maximum horizontal display width is 1024 pixels.
Note
This register must be programmed such that REG[04h] ≥ 3 (32 pixels)
Note
When setting a horizontal resolution greater than 767 pixels, with a color depth of 15/16 bpp, the
Memory Offset Registers (REG[16h], REG[17h]) must be set to a virtual horizontal pixel
resolution of 1024.
Horizontal Non-Display Period Register
REG[05h]
n/a
bits 4-0
RW
n/a
n/a
Horizontal
Non-Display
Period Bit 4
Horizontal
Non-Display
Period Bit 3
Horizontal
Non-Display
Period Bit 2
Horizontal
Non-Display
Period Bit 1
Horizontal
Non-Display
Period Bit 0
Horizontal Non-Display Period Bits [4:0]
These bits specify the horizontal non-display period.
Horizontal non-display period (pixels) = (Horizontal Non-Display Period Bits [4:0] + 1) × 8
The recommended minimum value which should be programmed into this register is 3 (32 pixels).
The maximum value which can be programmed into this register is 1Fh, which gives a horizontal
non-display period of 256 pixels.
Note
This register must be programmed such that
REG[05h] ≥ 3 and (REG[05h] + 1) ≥ (REG[06h] + 1) + (REG[07h] bits [3:0] +1)
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 104
Epson Research and Development
Vancouver Design Center
HRTC/FPLINE Start Position Register
REG[06h]
n/a
RW
n/a
bits 4-0
n/a
HRTC/
FPLINE Start
Position Bit 4
HRTC/
FPLINE Start
Position Bit 3
HRTC/
FPLINE Start
Position Bit 2
HRTC/
FPLINE Start
Position Bit 1
HRTC/
FPLINE Start
Position Bit 0
HRTC/FPLINE Start Position Bits [4:0]
For CRT and TFT/D-TFD, these bits specify the delay from the start of the horizontal non-display
period to the leading edge of the HRTC pulse and FPLINE pulse respectively.
HRTC/FPLINE start position (pixels) = (HRTC/FPLINE Start Position Bits [4:0] + 1) × 8 - 2
Note
This register must be programmed such that
(REG[05h] + 1) ≥ (REG[06h] + 1) + (REG[07h] bits [3:0] +1)
HRTC/FPLINE Pulse Width Register
REG[07h]
HRTC
Polarity
Select
RW
FPLINE
Polarity
Select
n/a
n/a
HRTC/
FPLINE
Pulse Width
Bit 3
HRTC/
FPLINE
Pulse Width
Bit 2
HRTC/
FPLINE
Pulse Width
Bit 1
HRTC/
FPLINE
Pulse Width
Bit 0
bit 7
HRTC Polarity Select
This bit selects the polarity of the HRTC pulse to the CRT.
When this bit = 1, the HRTC pulse is active high.
When this bit = 0, the HRTC pulse is active low.
bit 6
FPLINE Polarity Select
This bit selects the polarity of the FPLINE pulse to TFT/D-TFD or passive LCD.
When this bit = 1, the FPLINE pulse is active high for TFT/D-TFD and active low for passive LCD.
When this bit = 0, the FPLINE pulse is active low for TFT/D-TFD and active high for passive LCD.
Table 8-4: FPLINE Polarity Selection
bits 3-0
FPLINE Polarity Select
Passive LCD FPLINE Polarity
TFT/D-TFD FPLINE Polarity
0
active high
active low
1
active low
active high
HRTC/FPLINE Pulse Width Bits [3:0]
For CRT and TFT/D-TFD, these bits specify the pulse width of HRTC and FPLINE respectively.
For passive LCD, FPLINE is automatically created and these bits have no effect.
HRTC/FPLINE pulse width (pixels) = (HRTC/FPLINE Pulse Width Bits [3:0] + 1) × 8
The maximum HRTC pulse width is 128 pixels.
Note
This register must be programmed such that
(REG[05h] + 1) ≥ (REG[06h] + 1) + (REG[07h] bits [3:0] +1)
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 105
Vertical Display Height Register 0
REG[08h]
Vertical
Display
Height Bit 7
RW
Vertical
Display
Height Bit 6
Vertical
Display
Height Bit 5
Vertical
Display
Height Bit 4
Vertical
Display
Height Bit 3
Vertical
Display
Height Bit 2
Vertical
Display
Height Bit 1
Vertical
Display
Height Bit 0
Vertical Display Height Register 1
REG[09h]
n/a
RW
n/a
REG[08h] bits 7-0
REG[09h] bits 1-0
n/a
n/a
n/a
n/a
Vertical
Display
Height Bit 9
Vertical
Display
Height Bit 8
Vertical Display Height Bits [9:0]
These bits specify the vertical display height.
Vertical display height (lines) = Vertical Display Height Bits [9:0] + 1
• For CRT, TFT/D-TFD, and single passive LCD panel this register is programmed to:
(vertical resolution of the display) - 1, e.g. EFh for a 240-line display.
• For dual-panel passive LCD not in simultaneous display mode, this register is programmed to:
((vertical resolution of the display)/2) - 1, e.g. EFh for a 480-line display.
• For all simultaneous display modes, this register is programmed to:
(vertical resolution of the CRT) - 1, e.g. 1DFh for a 480-line CRT.
Vertical Non-Display Period Register
REG[0Ah]
Vertical NonDisplay
Period Status
(RO)
RW
Vertical NonDisplay
Period Bit 5
n/a
Vertical NonDisplay
Period Bit 4
Vertical NonDisplay
Period Bit 3
Vertical NonDisplay
Period Bit 2
bit 7
Vertical Non-Display Period Status
This is a read-only status bit.
When this bit = 1, a vertical non-display period is indicated.
When this bit = 0, a vertical display period is indicated.
bits 5-0
Vertical Non-Display Period Bits [5:0]
These bits specify the vertical non-display period.
Vertical NonDisplay
Period Bit 1
Vertical NonDisplay
Period Bit 0
Vertical non-display period (lines) = Vertical Non-Display Period Bits [5:0] + 1
Note
This register must be programmed such that
REG[0Ah] ≥ 1 and (REG[0Ah] bits [5:0] + 1) ≥ (REG[0Bh] + 1) + (REG[0Ch] bits [2:0] + 1)
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 106
Epson Research and Development
Vancouver Design Center
VRTC/FPFRAME Start Position Register
REG[0Bh]
n/a
RW
VRTC/
FPFRAME
Start Position
Bit 5
n/a
bits 5-0
VRTC/
FPFRAME
Start Position
Bit 4
VRTC/
FPFRAME
Start Position
Bit 3
VRTC/
FPFRAME
Start Position
Bit 2
VRTC/
FPFRAME
Start Position
Bit 1
VRTC/
FPFRAME
Start Position
Bit 0
VRTC/FPFRAME Start Position Bits [5:0]
For CRT and TFT/D-TFD, these bits specify the delay in lines from the start of the vertical non-display period to the leading edge of the VRTC pulse and FPFRAME pulse respectively. For passive
LCD, FPFRAME is automatically created and these bits have no effect.
VRTC/FPFRAME start position (lines) = VRTC/FPFRAME Start Position Bits [5:0] + 1
The maximum start delay is 64 lines.
Note
This register must be programmed such that
(REG[0Ah] bits [5:0] + 1) ≥ (REG[0Bh] + 1) + (REG[0Ch] bits [2:0] + 1)
For exact timing please use the timing diagrams in section 7.5
VRTC/FPFRAME Pulse Width Register
REG[0Ch]
RW
FPFRAME
VRTC Polarity
Polarity
Select
Select
n/a
n/a
n/a
VRTC/
FPFRAME
Pulse Width
Bit 2
VRTC/
FPFRAME
Pulse Width
Bit 1
VRTC/
FPFRAME
Pulse Width
Bit 0
bit 7
VRTC Polarity Select
This bit selects the polarity of the VRTC pulse to the CRT.
When this bit = 1, the VRTC pulse is active high.
When this bit = 0, the VRTC pulse is active low.
bit 6
FPFRAME Polarity Select
This bit selects the polarity of the FPFRAME pulse to the TFT/D-TFD or passive LCD.
When this bit = 1, the FPFRAME pulse is active high for TFT/D-TFD and active low for passive.
When this bit = 0, the FPFRAME pulse is active low for TFT/D-TFD and active high for passive.
Table 8-5: FPFRAME Polarity Selection
FPFRAME Polarity Select
Passive LCD FPFRAME Polarity
TFT/D-TFD FPFRAME Polarity
0
active high
active low
1
active low
active high
bits 2-0
VRTC/FPFRAME Pulse Width Bits [2:0]
For CRT and TFT/D-TFD, these bits specify the pulse width of VRTC and FPFRAME respectively.
For passive LCD, FPFRAME is automatically created and these bits have no effect.
VRTC/FPFRAME pulse width (lines) = VRTC/FPFRAME Pulse Width Bits [2:0] + 1
Note
This register must be programmed such that
(REG[0Ah] bits [5:0] + 1) ≥ (REG[0Bh] + 1) + (REG[0Ch] bits [2:0] + 1)
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 107
8.2.4 Display Configuration Registers
Display Mode Register
REG[0Dh]
SwivelView
Enable
RW
Simultaneous
Display
Option Select
Bit 1
Simultaneous
Display
Bit-per-pixel
Option Select Select Bit 2
Bit 0
Bit-per-pixel
Select Bit 1
Bit-per-pixel
Select Bit 0
CRT Enable
LCD Enable
bit 7
SwivelView Enable
When this bit = 1, all CPU accesses to the display buffer are translated to provide clockwise 90°
hardware rotation of the display image. Refer to “Section 13 SwivelView” for application and limitations.
bits 6-5
Simultaneous Display Option Select Bits [1:0]
These bits are used to select one of four different simultaneous display mode options: Normal, Line
Doubling, Interlace, or Even Scan Only. The purpose of these modes is to manipulate the vertical
resolution of the image so that it fits on both the CRT, typically 640x480, and LCD. The following
table describes the four modes using a 640x480 CRT as an example:
Table 8-6: Simultaneous Display Option Selection
Simultaneous
Simultaneous
Display Option
Display Mode
Select Bits [1:0]
Mode Description
The image is not manipulated. This mode is used when the CRT and LCD have the same
resolution, e.g. 480 lines.
00
01
Normal
Line Doubling
It is necessary to suit the vertical retrace period to the CRT. This results in a lower LCD
duty cycle (1/525 compared to the usual 1/481). This reduced duty cycle may result in
lower contrast on the LCD.
Each line is replicated on the CRT. This mode is used to display a 240-line image on a
240-line LCD and stretch it to a 480-line image on the CRT. The CRT has a heightened
aspect ratio.
It is necessary to suit the vertical retrace period to the CRT. This results in a lower LCD
duty cycle (2/525 compared to the usual 1/241). This reduced duty cycle is not extreme
and the contrast of the LCD image should not be greatly reduced.
10
Interlace
The odd and even fields of a 480-line image are interlaced on the LCD. This mode is used
to display a 480-line image on the CRT and squash it onto a 240-line LCD. The full image
is viewed on the LCD but the interlacing may create flicker. The LCD has a shortened
aspect ratio.
It is necessary to suit the vertical retrace period to the CRT. This results in a lower LCD
duty cycle (2/525 compared to the usual 1/241). This reduced duty cycle is not extreme
and the contrast of the LCD image should not be greatly reduced.
11
Even Scan Only
Only the even field of a 480-line image is displayed on the LCD. This is an alternate
method to display a 480-line image on the CRT and squash it onto a 240-line LCD. Only
the even scans are viewed on the LCD. The LCD has a shortened aspect ratio.
It is necessary to suit the vertical retrace period to the CRT. This results in a lower LCD
duty cycle (2/525 compared to the usual 1/241). This reduced duty cycle is not extreme
and the contrast of the LCD image should not be greatly reduced.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 108
Epson Research and Development
Vancouver Design Center
Note
1. Dual Panel Considerations: When configured for a dual LCD panel and using
Simultaneous Display, the Half Frame Buffer Disable, REG[1Bh] bit 0, must be set to 1.
This results in a lower contrast on the LCD panel, which may require adjustment.
2. The Line doubling option is not supported with dual panel.
bits 4-2
Bit-per-pixel Select Bits [2:0]
These bits select the color depth (bpp) for the displayed data. See “Section 10.1 Display Mode Formats” for details of how the pixels are mapped into the image buffer.
Table 8-7: Bit-per-pixel Selection
Bit-per-pixel Select Bits [2:0]
Color Depth (bpp)
000
1 bpp
001
2 bpp
010
4 bpp
011
8 bpp
100
15 bpp
101
16 bpp
110 – 111
Reserved
bit 1
CRT Enable
This bit enables the CRT monitor.
When this bit = 1, the CRT is enabled.
When this bit = 0, the CRT is disabled.
bit 0
LCD Enable
This bit enables the LCD panel.
Programming this bit from a 0 to a 1 starts the LCD power-on sequence.
Programming this bit from a 1 to a 0 starts the LCD power-off sequence.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 109
Screen 1 Line Compare Register 0
REG[0Eh]
RW
Screen 1
Screen 1
Screen 1
Screen 1
Screen 1
Screen 1
Screen 1
Screen 1
Line
Line
Line
Line
Line
Line
Line
Line
Compare Bit 7 Compare Bit 6 Compare Bit 5 Compare Bit 4 Compare Bit 3 Compare Bit 2 Compare Bit 1 Compare Bit 0
Screen 1 Line Compare Register 1
REG[0Fh]
n/a
RW
n/a
REG[0Eh] bits 7-0
REG[0Fh] bits 1-0
n/a
n/a
n/a
n/a
Screen 1
Screen 1
Line
Line
Compare Bit 9 Compare Bit 8
Screen 1 Line Compare Bits [9:0]
These bits are set to 1 during power-on.
The display can be split into two images: Screen 1 and Screen 2, with Screen 1 above Screen 2.
This 10-bit value specifies the height of Screen 1.
Height of Screen 1 (lines) = Screen 1 Line Compare Bits [9:0] + 1
If the height of Screen 1 is less than the display height then the remainder of the display is taken up
by Screen 2. For normal operation (no split screen) this register must be set greater than the Vertical
Display Height register (e.g. set to the reset value of 3FFh).
See “Display Configuration” for details.
Screen 1 Display Start Address Register 0
REG[10h]
RW
Start Address Start Address Start Address Start Address Start Address Start Address Start Address Start Address
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Screen 1 Display Start Address Register 1
REG[11h]
RW
Start Address Start Address Start Address Start Address Start Address Start Address Start Address Start Address
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Screen 1 Display Start Address Register 2
REG[12h]
n/a
RW
n/a
REG[10h] bits 7-0
REG[11h] bits 7-0
REG[12h] bits 3-0
n/a
n/a
Start Address Start Address Start Address Start Address
Bit 19
Bit 18
Bit 17
Bit 16
Screen 1 Start Address Bits [19:0]
These registers form the 20-bit address for the starting word of the Screen 1 image in
the display buffer.
Note that this is a word address.
A combination of this register and the Pixel Panning register (REG[18h]) can be used to uniquely
identify the start (top left) pixel within the Screen 1 image stored in the display buffer.
See “Display Configuration” for details.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 110
Epson Research and Development
Vancouver Design Center
Screen 2 Display Start Address Register 0
REG[13h]
RW
Start Address Start Address Start Address Start Address Start Address Start Address Start Address Start Address
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Screen 2 Display Start Address Register 1
REG[14h]
RW
Start Address Start Address Start Address Start Address Start Address Start Address Start Address Start Address
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Screen 2 Display Start Address Register 2
REG[15h]
n/a
RW
n/a
REG[13h] bits 7-0
REG[14h] bits 7-0
REG[15h] bits 3-0
n/a
n/a
Start Address Start Address Start Address Start Address
Bit 19
Bit 18
Bit 17
Bit 16
Screen 2 Start Address Bits [19:0]
These registers form the 20-bit address for the starting word of the Screen 2 image in
the display buffer.
Note that this is a word address.
A combination of this register and the Pixel Panning register (REG[18h]) can be used to uniquely
identify the start (top left) pixel within the Screen 2 image stored in the display buffer.
See “Display Configuration” for details.
Memory Address Offset Register 0
REG[16h]
Memory
Address
Offset Bit 7
RW
Memory
Address
Offset Bit 6
Memory
Address
Offset Bit 5
Memory
Address
Offset Bit 4
Memory
Address
Offset Bit 3
Memory
Address
Offset Bit 2
Memory
Address
Offset Bit 1
Memory
Address
Offset Bit 0
Memory Address Offset Register 1
REG[17h]
n/a
RW
n/a
REG[16h] bits 7-0
REG[17h] bits 2-0
n/a
n/a
n/a
Memory
Address
Offset Bit 10
Memory
Address
Offset Bit 9
Memory
Address
Offset Bit 8
Memory Address Offset Bits [10:0]
These bits form the 11-bit address offset from the starting word of line n to the starting word of line
n+1. This value is applied to both Screen 1 and Screen 2.
Note that this value is in words.
A virtual image can be formed by setting this register to a value greater than the width of the display. The displayed image is a window into the larger virtual image.
See “Section 10 Display Configuration” for details.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 111
Pixel Panning Register
REG[18h]
RW
Screen 2
Screen 2
Screen 2
Screen 2
Screen 1
Screen 1
Screen 1
Screen 1
Pixel Panning Pixel Panning Pixel Panning Pixel Panning Pixel Panning Pixel Panning Pixel Panning Pixel Panning
Bit 3
Bit 2
Bit 1
Bit 0
Bit 3
Bit 2
Bit 1
Bit 0
This register is used to control the horizontal pixel panning of Screen 1 and Screen 2. Each screen
can be independently panned to the left by programming its respective Pixel Panning Bits to a nonzero value. The value represents the number of pixels panned. The maximum pan value is dependent
on the display mode.
Table 8-8: Pixel Panning Selection
Display Mode
Maximum Pan Value
Pixel Panning Bits active
1 bpp
16
Bits [3:0]
2 bpp
8
Bits [2:0]
4 bpp
4
Bits [1:0]
8 bpp
1
Bit 0
15/16 bpp
0
none
Smooth horizontal panning can be achieved by a combination of this register and the Display Start
Address registers.
See “Section 10 Display Configuration” for details.
bits 7-4
Screen 2 Pixel Panning Bits [3:0]
Pixel panning bits for screen 2.
bits 3-0
Screen 1 Pixel Panning Bits [3:0]
Pixel panning bits for screen 1.
8.2.5 Clock Configuration Register
Clock Configuration Register
REG[19h]
Reserved
bit 7
RW
n/a
n/a
n/a
n/a
MCLK Divide
Select
PCLK Divide
Select Bit 1
PCLK Divide
Select Bit 0
Reserved
This bit must be set to 0.
Note
There must always be a source clock at CLKI.
bit 2
MCLK Divide Select
When this bit = 1 the MCLK frequency is half of its source frequency.
When this bit = 0 the MCLK frequency is equal to its source frequency.
The MCLK frequency should always be set to the maximum frequency allowed by the DRAM; this
provides maximum performance and minimum overall system power consumption.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 112
Epson Research and Development
Vancouver Design Center
bits 1-0
PCLK Divide Select Bits [1:0]
These bits select the MCLK: PCLK frequency ratio
Table 8-9: PCLK Divide Selection
PCLK Divide Select Bits [1:0]
MCLK: PCLK Frequency Ratio
00
1: 1
01
2: 1
10
3: 1
11
4: 1
See section on “Maximum MCLK:PCLK Frequency Ratios” for selection of clock ratios.
8.2.6 Power Save Configuration Registers
Power Save Configuration Register
REG[1Ah]
Power Save
Status
RO
RW
n/a
n/a
n/a
LCD Power
Disable
Suspend
Refresh
Select Bit 1
Suspend
Refresh
Select Bit 0
Software
Suspend
Mode Enable
bit 7
Power Save Status
This is a read-only status bit.
This bit indicates the power-save state of the chip.
When this bit = 1, the panel has been powered down and the memory controller is either in self
refresh mode or is performing only CAS-before-RAS refresh cycles.
When this bit = 0, the chip is either powered up, in transition of powering up, or in transition of
powering down. See Section 15 Power Save Modes for details.
bit 3
LCD Power Disable
This bit is used to override the panel on/off sequencing logic.
When this bit = 0 the LCDPWR output is controlled by the panel on/off sequencing logic.
When this bit = 1 the LCDPWR output is directly forced to the off state.
The LCDPWR “On/Off” polarity is configured by MD10 at the rising edge of RESET# (MD10 = 0
configures LCDPWR = 0 as the Off state; MD10 = 1 configures LCDPWR = 1 as the Off state).
bits 2-1
Suspend Refresh Select Bits [1:0]
These bits specify the type of DRAM refresh to use in Suspend mode.
Table 8-10: Suspend Refresh Selection
Suspend Refresh Select Bits [1:0]
DRAM Refresh Type
00
CAS-before-RAS (CBR) refresh
01
Self-Refresh
1X
No Refresh
Note
These bits should not be changed while suspend mode is active.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
bit 0
Page 113
Software Suspend Mode Enable
When this bit = 1 software Suspend mode is enabled.
When this bit = 0 software Suspend mode is disabled.
See Section 15 Power Save Modes for details.
8.2.7 Miscellaneous Registers
Miscellaneous Register
REG[1Bh]
Host
Interface
Disable
RW
n/a
n/a
n/a
n/a
n/a
n/a
Half Frame
Buffer Disable
bit 7
Host Interface Disable
This bit is set to 1 during power-on/reset.
This bit must be programmed to 0 to enable the Host Interface. When this bit is high, all memory
and all registers except REG[1Ah] (read-only) and REG[1Bh] are inaccessible.
bit 0
Half Frame Buffer Disable
This bit is used to disable the Half Frame Buffer.
When this bit = 1, the Half Frame Buffer is disabled.
When this bit = 0, the Half Frame Buffer is enabled.
When a single panel is selected, the Half Frame Buffer is automatically disabled and this bit has no
effect.
The half frame buffer is needed to fully support dual panels. Disabling the Half Frame Buffer
reduces memory bandwidth requirements and increases the supportable pixel clock frequency, but
results in reduced contrast on the LCD panel (the duty cycle of the LCD is halved). This mode is
not normally used except under special circumstances such as simultaneous display on a CRT and
dual panel LCD. When this mode is used the Alternate Frame Rate Modulation scheme should be
used (see REG[31h]). For details on Frame Rate calculation see Section 14.2, “Frame Rate Calculation” on page 142.
MD Configuration Readback Register 0
REG[1Ch]
MD[7] Status
RO
MD[6] Status
MD[5] Status
MD[4] Status
MD[3] Status
MD[2] Status
MD[1] Status
MD[0] Status
MD Configuration Readback Register 1
REG[1Dh]
MD[15]
Status
RO
MD[14]
Status
REG[1Ch] bits 7-0
REG[1Dh] bits 7-0
MD[13]
Status
MD[12]
Status
MD[11]
Status
MD[10]
Status
MD[9]
Status
MD[8]
Status
MD[15:0] Configuration Status
These are read-only status bits for the MD[15:0] pins configuration status at the rising edge of
RESET#. MD[15:0] are used to configure the chip at the rising edge of RESET# – see Pin Descriptions and Summary of Configuration Options for details.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 114
Epson Research and Development
Vancouver Design Center
General IO Pins Configuration Register 0
REG[1Eh]
n/a
RW
n/a
n/a
n/a
GPIO3 Pin
IO Config.
GPIO2 Pin
IO Config.
GPIO1 Pin
IO Config.
n/a
Pins MA9, MA10, MA11 are multi-functional – they can be DRAM address outputs or general
purpose IO dependent on the DRAM type. MD[7:6] are used to identify the DRAM type and
configure these pins as follows:
Table 8-11: MA/GPIO Pin Functionality
Pin Function
MD[7:6] at
rising edge of
RESET#
MA9
MA10
MA11
00
GPIO3
GPIO1
GPIO2
01
MA9
GPIO1
GPIO2
10
MA9
GPIO1
GPIO2
11
MA9
MA10
MA11
These bits are used to control the direction of these pins when they are used as general purpose IO.
These bits have no effect when the pins are used as DRAM address outputs.
bit 3
GPIO3 Pin IO Configuration
When this bit = 1, the GPIO3 pin is configured as an output pin.
When this bit = 0 (default), the GPIO3 pin is configured as an input pin.
bit 2
GPIO2 Pin IO Configuration
When this bit = 1, the GPIO2 pin is configured as an output pin.
When this bit = 0 (default), the GPIO2 pin is configured as an input pin.
bit 1
GPIO1 Pin IO Configuration
When this bit = 1, the GPIO1 pin is configured as an output pin.
When this bit = 0 (default), the GPIO1 pin is configured as an input pin.
General IO Pins Configuration Register 1
REG[1Fh]
n/a
RW
n/a
n/a
n/a
n/a
n/a
n/a
n/a
This register position is reserved for future use.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 115
General IO Pins Control Register 0
REG[20h]
n/a
RW
n/a
n/a
n/a
GPIO3 Pin
IO Status
GPIO2 Pin
IO Status
GPIO1 Pin
IO Status
n/a
bit 3
GPIO3 Pin IO Status
When GPIO3 is configured as an output (see REG[1Eh]), a “1” in this bit drives GPIO3 high and a
“0” in this bit drives GPIO3 low.
When GPIO3 is configured as an input, a read from this bit returns the status of GPIO3.
bit 2
GPIO2 Pin IO Status
When GPIO2 is configured as an output (see REG[1Eh]), a “1” in this bit drives GPIO2 high and a
“0” in this bit drives GPIO2 low.
When GPIO2 is configured as an input, a read from this bit returns the status of GPIO2.
bit 1
GPIO1 Pin IO Status
When GPIO1 is configured as an output (see REG[1Eh]), a “1” in this bit drives GPIO1 high and a
“0” in this bit drives GPIO1 low.
When GPIO1 is configured as an input, a read from this bit returns the status of GPIO1.
General IO Pins Control Register 1
REG[21h]
GPO Control
bit 7
RW
n/a
n/a
n/a
n/a
n/a
n/a
n/a
GPO Control
This bit is used to control the state of the SUSPEND# pin when it is configured as General Purpose
Output (GPO). When this bit = 0, the GPO output is set to the reset state. When this bit = 1, the
GPO output is set to the inverse of the reset state. For information on the reset state of this pin see
“Miscellaneous Interface Pin Descriptions“ on page 32 and “Summary of Power On/Reset
Options“ on page 33.
Performance Enhancement Register 0
REG[22h]
Reserved
RW
RC Timing
Value Bit 1
RC Timing
Value Bit 0
RAS#-toCAS# Delay
Value
RAS#
Precharge
Timing Value
Bit 1
RAS#
Precharge
Timing Value
Bit 0
Reserved
Reserved
Note
Changing this register to non-zero value, or to a different non-zero value, should be done only
when there are no read/write DRAM cycles. This condition occurs when all of the following are
true: the Display FIFO is disabled (REG[23h] bit 7 = 1), and the Half Frame Buffer is disabled
(REG[1Bh] bit 0 = 1), and the Ink/Cursor is inactive (Reg[27h] bits 7-6 = 00). This condition also
occurs when the CRT and LCD enable bits (Reg[0Dh] bits 1-0) have remained 0 since chip reset.
For further programming information, see SED1355 Programming Notes and Examples, document number X23A-G-003-xx.
bit 7
Reserved
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 116
bits 6-5
Epson Research and Development
Vancouver Design Center
RC Timing Value (NRC) Bits [1:0]
These bits select the DRAM random-cycle timing parameter, tRC. These bits specify the number
(NRC) of MCLK periods (TM) used to create tRC. NRC should be chosen to meet tRC as well as
tRAS, the RAS pulse width. Use the following two formulae to calculate NRC then choose the larger
value. Note, these formulae assume an MCLK duty cycle of 50 +/- 5%.
NRC
= Round-Up (tRC/TM)
NRC
= Round-Up (tRAS/TM + NRP)
= Round-Up (tRAS/TM + 1.55)
if NRP = 1 or 2
if NRP = 1.5
The resulting tRC is related to NRC as follows:
= (NRC) TM
tRC
Table 8-12: Minimum Memory Timing Selection
bit 4
REG[22h] bits [6:5]
NRC
Minimum Random Cycle
Width (tRC)
00
5
5
01
4
4
10
3
3
11
Reserved
Reserved
RAS#-to-CAS# Delay Value (NRCD)
This bit selects the DRAM RAS#-to-CAS# delay parameter, tRCD. This bit specifies the number
(NRCD) of MCLK periods (TM) used to create tRCD. NRCD must be chosen to satisfy the RAS#
access time, tRAC. Note, these formulae assume an MCLK duty cycle of 50 +/- 5%.
NRCD
= Round-Up((tRAC + 5)/TM - 1)
=2
= Round-Up(tRAC/TM - 1)
= Round-Up(tRAC/TM - 0.45)
if EDO and NRP = 1 or 2
if EDO and NRP = 1.5
if FPM and NRP = 1 or 2
if FPM and NRP = 1.5
Note that for EDO-DRAM and NRP = 1.5, this bit is automatically forced to 0 to select 2 MCLK for
NRCD. This is done to satisfy the CAS# address setup time, tASC.
The resulting tRC is related to NRCD as follows:
tRCD
tRCD
tRCD
tRCD
= (NRCD) TM
= (1.5) TM
= (NRCD + 0.5) TM
= (NRCD) TM
if EDO and NRP = 1 or 2
if EDO and NRP = 1.5
if FPM and NRP = 1 or 2
if FPM and NRP = 1.5
Table 8-13: RAS#-to-CAS# Delay Timing Select
REG[22h] bit 4
0
1
SED1355
X23A-A-001-11
NRCD
2
1
RAS#-to-CAS# Delay (tRCD)
2
1
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
bits 3-2
Page 117
RAS# Precharge Timing Value (NRP) Bits [1:0]
Minimum Memory Timing for RAS# precharge
These bits select the DRAM RAS# Precharge timing parameter, tRP. These bits specify the number
(NRP) of MCLK periods (TM) used to create tRP – see the following formulae. Note, these formulae
assume an MCLK duty cycle of 50 +/- 5%.
NRP
=1
= 1.5
=2
if (tRP/TM) < 1
if 1 ≤ (tRP/TM) < 1.45
if (tRP/TM) ≥ 1.45
The resulting tRC is related to NRP as follows:
= (NRP + 0.5) TM
= (NRP) TM
tRP
tRP
bits 1-0
if FPM refresh cycle and NRP = 1 or 2
for all other
Reserved
These bits must be set to 0.
Table 8-14: RAS Precharge Timing Select
REG[22h] bits [3:2]
00
01
10
11
NRP
2
1.5
1
Reserved
RAS# Precharge Width (tRP)
2
1.5
1
Reserved
Optimal DRAM Timing
The following table contains the optimally programmed values of NRC, NRP, and NRCD for different
DRAM types, at maximum MCLK frequencies.
Table 8-15: Optimal NRC, NRP, and NRCD values at maximum MCLK frequency
DRAM Type
EDO
FPM
bit 0
DRAM Speed
(ns)
50
60
70
60
70
TM
(ns)
25
30
33
40
50
NRC
(#MCLK)
4
4
5
4
3
NRP
(#MCLK)
1.5
1.5
2
1.5
1.5
NRCD
(#MCLK)
2
2
2
2
1
Reserved
This reserved bit must be set to 0.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 118
Epson Research and Development
Vancouver Design Center
Performance Enhancement Register 1
REG[23h]
Display FIFO
Disable
bit 7
RW
CPU to
Memory Wait
State
Bit 1
CPU to
Memory Wait
State
Bit 0
Display FIFO
Threshold
Bit 4
Display FIFO
Threshold
Bit 3
Display FIFO
Threshold
Bit 2
Display FIFO
Threshold
Bit 1
Display FIFO
Threshold
Bit 0
Display FIFO Disable
When this bit = 1 the display FIFO is disabled and all data outputs are forced to zero (i.e., the
screen is blanked). This accelerates screen updates by allocating more memory bandwidth to CPU
accesses.
When this bit = 0 the display FIFO is enabled.
Note
For further performance increase in dual panel mode disable the half frame buffer (see section
8.2.7) and disable the cursor (see section 8.2.9).
bit 6-5
CPU to Memory Wait State Bits [1:0]
These bits are used to optimize the handshaking between the host interface and the memory controller. The bits should be set according to the relationship between BCLK and MCLK – see the
table below where TB and TM are the BCLK and MCLK periods respectively.
Table 8-16: Minimum Memory Timing Selection
bits 4-0
Wait State Bits [1:0]
Condition
00
no restrictions (default)
01
2TM - 4ns > TB
10
undefined
11
undefined
Display FIFO Threshold Bits [4:0]
These bits specify the display FIFO depth required to sustain uninterrupted display fetches. When
these bits are all “0”, the display FIFO depth is calculated automatically.
These bits should always be set to 0, except in the following configurations:
Landscape mode at 15/16 bpp (with MCLK=PCLK),
Portrait mode at 8/16 bpp (with MCLK=PCLK).
When in the above configurations, a value of 1Bh should be used.
Note
The utility 1355CFG will, given the correct configuration values, automatically generate the
correct values for the Performance Enhancement Registers.
8.2.8 Look-Up Table Registers
Look-Up Table Address Register
REG[24h]
LUT Address
Bit 7
SED1355
X23A-A-001-11
RW
LUT Address
Bit 6
LUT Address
Bit 5
LUT Address
Bit 4
LUT Address
Bit 3
LUT Address
Bit 2
LUT Address
Bit 1
LUT Address
Bit 0
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
bits 7-0
Page 119
LUT Address Bits [7:0]
These 8 bits control a pointer into the Look-Up Tables (LUT). The SED1355 has three 256-position, 4-bit wide LUTs, one for each of red, green, and blue – refer to “Look-Up Table Architecture”
for details.
This register selects which LUT entry is read/write accessible through the LUT Data Register
(REG[26h]). Writing the LUT Address Register automatically sets the pointer to the Red LUT.
Accesses to the LUT Data Register automatically increment the pointer.
For example, writing a value 03h into the LUT Address Register sets the pointer to R[3]. A subsequent access to the LUT Data Register accesses R[3] and moves the pointer onto G[3]. Subsequent
accesses to the LUT Data Register move the pointer onto B[3], R[4], G[4], B[4], R[5], etc. Note that
the RGB data is inserted into the LUT after the Blue data is written, i.e. all three colors must be
written before the LUT is updated.
Look-Up Table Data Register
REG[26h]
LUT Data
Bit 3
bits 7-4
RW
LUT Data
Bit 2
LUT Data
Bit 1
LUT Data
Bit 0
n/a
n/a
n/a
n/a
LUT Data
This register is used to read/write the RGB Look-Up Tables. This register accesses the entry at the
pointer controlled by the Look-Up Table Address Register (REG[24h]) – see above.
Accesses to the Look-Up Table Data Register automatically increment the pointer.Note that the
RGB data is inserted into the LUT after the Blue data is written, i.e. all three colors must be written
before the LUT is updated.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 120
Epson Research and Development
Vancouver Design Center
8.2.9 Ink/Cursor Registers
Ink/Cursor Control Register
REG[27h]
Ink/Cursor
Mode
Bit 1
RW
Ink/Cursor
Mode
Bit 0
bit 7-6
n/a
Cursor High
Threshold
Bit 3
n/a
Cursor High
Threshold
Bit 2
Cursor High
Threshold
Bit 1
Cursor High
Threshold
Bit 0
Ink/Cursor Control Bits [1:0]
These bits select the operating mode of the Ink/Cursor circuitry. See table below
Table 8-17: Ink/Cursor Selection
REG[27h]
bit 3-0
Operating Mode
Bit 7
Bit 6
0
0
inactive
0
1
Cursor
1
0
Ink
1
1
reserved
Ink/Cursor FIFO Threshold Bits [3:0]
These bits specify the Ink/Cursor FIFO depth required to sustain uninterrupted display fetches.
When these bits are all 0, the Ink/Cursor FIFO depth is calculated automatically.
Cursor X Position Register 0
REG[28h]
Cursor X
Position Bit 7
RW
Cursor X
Position Bit 6
Cursor X
Position Bit 5
Cursor X
Position Bit 4
Cursor X
Position Bit 3
Cursor X
Position Bit 2
Cursor X
Position Bit 1
Cursor X
Position Bit 0
Cursor X Position Register 1
REG[29h]
Reserved
RW
n/a
n/a
n/a
n/a
n/a
Cursor X
Position Bit 9
Cursor X
Position Bit 8
REG[29] bit 7
Reserved
This bit must be set to 0.
REG[28] bits 7-0
REG[29] bits 1-0
Cursor X Position Bits [9:0]
In Cursor mode, this 10-bit register is used to program the horizontal pixel position of the Cursor’s
top left pixel.
This register must be set to 0 in Ink mode.
Note
The Cursor X Position register must be set during VNDP (vertical non-display period). Check
the VNDP status bit (REG[0Ah] bit 7) to determine if you are in VNDP, then update the register.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 121
Cursor Y Position Register 0
REG[2Ah]
Cursor Y
Position Bit 7
RW
Cursor Y
Position Bit 6
Cursor Y
Position Bit 5
Cursor Y
Position Bit 4
Cursor Y
Position Bit 3
Cursor Y
Position Bit 2
Cursor Y
Position Bit 1
Cursor Y
Position Bit 0
Cursor Y Position Register 1
REG[2Bh]
Reserved
RW
n/a
n/a
n/a
n/a
n/a
Cursor Y
Position Bit 9
Cursor Y
Position Bit 8
REG[2Bh] bit 7
Reserved
This bit must be set to 0.
REG[2Ah] bits 7-0
REG[2Bh] bits 1-0
Cursor Y Position Bits [9:0]
In Cursor mode, this 10-bit register is used to program the vertical pixel position of the Cursor’s top
left pixel.
This register must be set to 0 in Ink mode.
Note
The Cursor Y Position register must be set during VNDP (vertical non-display period). Check
the VNDP status bit (REG[0Ah] bit 7) to determine if you are in VNDP, then update the register.
Ink/Cursor Color 0 Register 0
REG[2Ch]
Cursor Color
0 Bit 7
RW
Cursor Color
0 Bit 6
Cursor Color
0 Bit 5
Cursor Color
0 Bit 4
Cursor Color
0 Bit 3
Cursor Color
0 Bit 2
Cursor Color
0 Bit 1
Cursor Color
0 Bit 0
Ink/Cursor Color 0 Register 1
REG[2Dh]
Cursor Color
0 Bit 15
RW
Cursor Color
0 Bit 14
REG[2C] bits 7:0
REG[2D] bits 7:0
Cursor Color
0 Bit 13
Cursor Color
0 Bit 12
Cursor Color
0 Bit 11
Cursor Color
0 Bit 10
Cursor Color
0 Bit 9
Cursor Color
0 Bit 8
Ink/Cursor Color 0 Bits [15:0]
These bits define the 5-6-5 RGB Ink/Cursor color 0.
Ink/Cursor Color 1 Register 0
REG[2Eh]
Cursor Color
1 Bit 7
RW
Cursor Color
1 Bit 6
Cursor Color
1 Bit 5
Cursor Color
1 Bit 4
Cursor Color
1 Bit 3
Cursor Color
1 Bit 2
Cursor Color
1 Bit 1
Cursor Color
1 Bit 0
Ink/Cursor Color 1 Register 1
REG[2Fh]
Cursor Color
1 Bit 15
RW
Cursor Color
1 Bit 14
REG[2E] bits 7:0
REG[2F] bits 7:0
Cursor Color
1 Bit 13
Cursor Color
1 Bit 12
Cursor Color
1 Bit 11
Cursor Color
1 Bit 10
Cursor Color
1 Bit 9
Cursor Color
1 Bit 8
Ink/Cursor Color 1 Bits [15:0]
These bits define the 5-6-5 RGB Ink/Cursor color 1
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 122
Epson Research and Development
Vancouver Design Center
Ink/Cursor Start Address Select Register
REG[30h]
Ink/Cursor
Start Address
Select
Bit 7
RW
Ink/Cursor
Start Address
Select
Bit 6
bits 7-0
Ink/Cursor
Start Address
Select
Bit 5
Ink/Cursor
Start Address
Select
Bit 4
Ink/Cursor
Start Address
Select
Bit 3
Ink/Cursor
Start Address
Select
Bit 2
Ink/Cursor
Start Address
Select
Bit 1
Ink/Cursor
Start Address
Select
Bit 0
Ink/Cursor Start Address Select Bits [7:0]
These bits define the start address for the Ink/Cursor buffer. The Ink/Cursor buffer must be positioned where it does not conflict with the image buffer and half-frame buffer – see Memory Mapping for details.
The start address for the Ink/Cursor buffer is programmed as shown in the following table where
Display Buffer Size represents the size in bytes of the attached DRAM device (see MD[7:6] in
Summary of Configuration Options):
Table 8-18: Ink/Cursor Start Address Encoding
Ink/Cursor Start Address Bits [7:0]
Start Address (Bytes)
0
Display Buffer Size - 1024
n = 255...1
Display Buffer Size - (n × 8192)
The Ink/Cursor image is stored contiguously. The address offset from the starting word of line n to
the starting word of line n+1 is calculated as follows:
Ink Address Offset (words) = REG[04h] + 1
Cursor Address Offset (words) = 8
Alternate FRM Register
REG[31h]
Alternate
FRM
Bit 7
bits 7-0
RW
Alternate
FRM
Bit 6
Alternate
FRM
Bit 5
Alternate
FRM
Bit 4
Alternate
FRM
Bit 3
Alternate
FRM
Bit 2
Alternate
FRM
Bit 1
Alternate
FRM
Bit 0
Alternate Frame Rate Modulation Select
Register that controls the alternate FRM scheme. When all bits are set to zero, the default FRM is
selected. For single passive, or dual passive with the half frame buffer enabled, either the original or
the alternate FRM scheme may be used. The alternate FRM scheme may produce more visually
appealing output. The following table shows the recommended alternate FRM scheme values.
Table 8-19: Recommended Alternate FRM Scheme
SED1355
X23A-A-001-11
Panel Mode
Register Value
Single Passive
0000 0000 or 1111 1111
Dual Passive w/Half Frame Buffer Enabled
0000 0000 or 1111 1010
Dual Passive w/Half Frame Buffer Disabled
1111 1111
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 123
9 Display Buffer
The system addresses the display buffer through the CS#, M/R#, and AB[20:0] input pins. When
CS# = 0 and M/R# = 1, the display buffer is addressed by bits AB[20:0]. See the table below:
Table 9-1: SED1355 Addressing
CS#
M/R#
Access
Register access:
• REG[00h] is addressed when AB[5:0] = 0
• REG[01h] is addressed when AB[5:0] = 1
• REG[n] is addressed when AB[5:0] = n
0
0
0
1
Memory access: the 2M byte display buffer is addressed by
AB[20:0]
1
X
SED1355 not selected
The display buffer address space is always 2M bytes. However, the physical display buffer may be
either 512K bytes or 2M bytes – see “Summary of Configuration Options”.
The display buffer can contain an image buffer, one or more Ink/Cursor buffers, and a half-frame
buffer.
A 512K byte display buffer is replicated in the 2M byte address space – see the figure below.
512K Byte Buffer
AB[20:0]
2M Byte Buffer
000000h
Image Buffer
Ink/Cursor Buffer
Half-Frame Buffer
07FFFFh
080000h
Image Buffer
Image Buffer
Ink/Cursor Buffer
Half-Frame Buffer
Image Buffer
Ink/Cursor Buffer
Half-Frame Buffer
Image Buffer
Ink/Cursor Buffer
Half-Frame Buffer
0FFFFFh
100000h
17FFFFh
180000h
Ink/Cursor Buffer
1FFFFFh
Half-Frame Buffer
Figure 9-1: Display Buffer Addressing
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 124
Epson Research and Development
Vancouver Design Center
9.1 Image Buffer
The image buffer contains the formatted display mode data – see “Display Mode Data Formats”.
The displayed image(s) could take up only a portion of this space; the remaining area may be used
for multiple images – possibly for animation or general storage. See “Display Configuration” on
page 125 for the relationship between the image buffer and the display.
9.2 Ink/Cursor Buffers
The Ink/Cursor buffers contain formatted image data for the Ink or Cursor. There may be several
Ink/Cursor images stored in the display buffer but only one may be active at any given time. See
“Ink/Cursor Architecture” on page 134 for details.
9.3 Half Frame Buffer
In dual panel mode, with the half frame buffer enabled, the top of the display buffer is allocated to
the half-frame buffer. The size of the half frame buffer is a function of the panel resolution and
whether the panel is color or monochrome type:
Half Frame Buffer Size (in bytes) = (panel width x panel length) * factor / 16
where factor
= 4 for color panel
= 1 for monochrome panel
For example, for a 640x480 8 bpp color panel the half frame buffer size is 75K bytes. In a 512K byte
display buffer, the half-frame buffer resides from 6D400h to 7FFFFh. In a 2M byte display buffer,
the half-frame buffer resides from 1ED400h to 1FFFFFh.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 125
10 Display Configuration
10.1 Display Mode Data Format
The following diagrams show the display mode data formats for a little-endian system.
1 bpp:
Byte 0
bit 7
A0
bit 0
A1
A2
A3
A4
A5
A6
P0 P1 P2 P3 P4 P5 P6 P7
A7
Pn = (An)
Panel Display
Host Address
2 bpp:
Display Memory
bit 7
bit 0
Byte 0
A0
B0
A1
B1
A2
B2
A3
B3
Byte 1
A4
B4
A5
B5
A6
B6
A7
B7
P0 P1 P2 P3 P4 P5 P6 P7
Pn = (An, Bn)
Panel Display
Host Address
Display Memory
4 bpp:
bit 7
bit 0
Byte 0
A0
B0
C0
D0
A1
B1
C1
D1
Byte 1
A2
B2
C2
D2
A3
B3
C3
D3
Byte 2
A4
B4
C4
D4
A5
B5
C5
D5
P0 P1 P2 P3 P4 P5 P6 P7
Pn = (An, Bn, Cn, Dn)
Panel Display
Host Address
Display Memory
8 bpp:
bit 7
bit 0
Byte 0
A0
B0
C0
D0
E0
F0
G0
H0
Byte 1
A1
B1
C1
D1
E1
F1
G1
H1
Byte 2
A2
B2
C2
D2
E2
F2
G2
H2
P0 P1 P2 P3 P4 P5 P6 P7
Pn = (An, Bn, Cn, Dn,En, Fn, Gn, Hn)
Panel Display
Host Address
Display Memory
Figure 10-1: 1/2/4/8 Bit-per-pixel Format Memory Organization
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 126
Epson Research and Development
Vancouver Design Center
15 bpp:
P0 P1 P2 P3 P4 P5 P6 P7
5-5-5 RGB
bit 7
bit 0
Byte 0
G02 G01 G00 B04 B03 B02 B01 B00
Byte 1
R04 R03 R02 R01 R00 G04 G03
Byte 2
G12 G11 G10 B14 B13 B12 B11 B10
Byte 3
R14 R13 R12 R11 R10 G14 G13
Pn = (Rn4-0, Gn 4-0, Bn4-0)
Panel Display
Display Memory
Host Address
16 bpp:
5-6-5 RGB
bit 7
P0 P1 P2 P3 P4 P5 P6 P7
bit 0
Byte 0
G02 G01 G00 B04 B03 B02 B01 B00
Byte 1
R04 R03 R02 R01 R00 G05 G04 G03
Byte 2
G12 G11 G10 B14 B13 B12 B11 B10
Byte 3
R14 R13 R12 R11 R10 G15 G14 G13
Host Address
Pn = (Rn4-0, Gn 5-0, Bn4-0)
Panel Display
Display Memory
Figure 10-2: 15/16 Bit-per-pixel Format Memory Organization
Note
1. The Host-to-Display mapping shown here is for a little-endian system.
2. For 15/16 bpp formats, Rn, Gn, Bn represent the red, green, and blue color components.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 127
10.2 Image Manipulation
The figure below shows how Screen 1 and 2 images are stored in the image buffer and positioned
on the display. Screen 1 and Screen 2 can be parts of a larger virtual image or images.
• (REG[17h],REG[16h]) defines the width of the virtual image(s)
• (REG[12h],REG[11h],REG[10]) defines the starting word of the Screen 1,
(REG[15h],REG[14h],REG[13]) defines the starting word of the Screen 2
• REG[18h] bits [3:0] define the starting pixel within the starting word for Screen 1, REG[18h]
bits [7:4] define the starting pixel within the starting word for Screen 2
• (REG[0Fh],REG[0Eh]) define the last line of Screen 1, the remainder of the display is taken up
by Screen 2
Image Buffer
Display
(REG[12h], REG[11h], REG[10h])
REG[18h] bits [3:0]
((REG[09h], REG[08h])+1) lines
Screen 1
Line 0
Line 1
Screen 1
(REG[15h], REG[14h], REG[13h])
Line (REG[0Fh], REG[0Eh])
REG[18h] bits [7:4]
Screen 2
Screen 2
((REG[04h]+1)*8) pixels
(REG[17h], REG[16h])
Figure 10-3: Image Manipulation
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 128
Epson Research and Development
Vancouver Design Center
11 Look-Up Table Architecture
The following figures are intended to show the display data output path only.
11.1 Monochrome Modes
The green Look-Up Table (LUT) is used for all monochrome modes.
1 Bit-per-pixel Monochrome mode
Green Look-Up Table 256x4
00
01
0
1
4-bit Grey Data
FC
FD
FE
FF
1 bit-per-pixel data
from Image Buffer
Figure 11-1: 1 Bit-per-pixel Monochrome Mode Data Output Path
2 Bit-per-pixel Monochrome Mode
Green Look-Up Table 256x4
00
01
02
03
00
01
10
11
4-bit Grey Data
FC
FD
FE
FF
2 bit-per-pixel data
from Image Buffer
Figure 11-2: 2 Bit-per-pixel Monochrome Mode Data Output Path
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 129
4 Bit-per-pixel Monochrome Mode
Green Look-Up Table 256x4
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
4-bit Grey Data
FC
FD
FE
FF
4 bit-per-pixel data
from Image Buffer
Figure 11-3: 4 Bit-per-pixel Monochrome Mode Data Output Path
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 130
Epson Research and Development
Vancouver Design Center
11.2 Color Modes
1 Bit-per-pixel Color Mode
Red Look-Up Table 256x4
00
01
0
1
4-bit Red Data
FC
FD
FE
FF
Green Look-Up Table 256x4
00
01
0
1
4-bit Green Data
FC
FD
FE
FF
Blue Look-Up Table 256x4
00
01
0
1
4-bit Blue Data
FC
FD
FE
FF
1 bit-per-pixel data
from Image Buffer
Figure 11-4: 1 Bit-per-pixel Color Mode Data Output Path
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 131
2 Bit-per-pixel Color Mode
Red Look-Up Table 256x4
00
01
02
03
00
01
10
11
4-bit Red Data
00
01
10
11
4-bit Green Data
00
01
10
11
4-bit Blue Data
FC
FD
FE
FF
Green Look-Up Table 256x4
00
01
02
03
FC
FD
FE
FF
Blue Look-Up Table 256x4
00
01
02
03
FC
FD
FE
FF
2 bit-per-pixel data
from Image Buffer
Figure 11-5: 2 Bit-per-pixel Color Mode Data Output Path
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 132
Epson Research and Development
Vancouver Design Center
4 Bit-per-pixel Color Mode
Red Look-Up Table 256x4
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
4-bit Red Data
FC
FD
FE
FF
Green Look-Up Table 256x4
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
4-bit Green Data
FC
FD
FE
FF
Blue Look-Up Table 256x4
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
4-bit Blue Data
FC
FD
FE
FF
4 bit-per-pixel data
from Image Buffer
Figure 11-6: 4 Bit-per-pixel Color Mode Data Output Path
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 133
8 Bit-per-pixel Color Mode
Red Look-Up Table 256x4
00
01
02
03
04
05
06
07
F8
F9
FA
FB
FC
FD
FE
FF
0000 0000
0000 0001
0000 0010
0000 0011
0000 0100
0000 0101
0000 0110
0000 0111
4-bit Red Data
1111 1000
1111 1001
1111 1010
1111 1011
1111 1100
1111 1101
1111 1110
1111 1111
Green Look-Up Table 256x4
00
01
02
03
04
05
06
07
F8
F9
FA
FB
FC
FD
FE
FF
0000 0000
0000 0001
0000 0010
0000 0011
0000 0100
0000 0101
0000 0110
0000 0111
4-bit Green Data
1111 1000
1111 1001
1111 1010
1111 1011
1111 1100
1111 1101
1111 1110
1111 1111
Blue Look-Up Table 256x4
00
01
02
03
04
05
06
07
F8
F9
FA
FB
FC
FD
FE
FF
0000 0000
0000 0001
0000 0010
0000 0011
0000 0100
0000 0101
0000 0110
0000 0111
4-bit Blue Data
1111 1000
1111 1001
1111 1010
1111 1011
1111 1100
1111 1101
1111 1110
1111 1111
8 bit-per-pixel data
from Image Buffer
Figure 11-7: 8 Bit-per-pixel Color Mode Data Output Path
15/16 Bit-per-pixel Color Modes
The LUT is bypassed and the color data is directly mapped for this color mode – See “Display
Configuration” on page 125.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 134
Epson Research and Development
Vancouver Design Center
12 Ink/Cursor Architecture
12.1 Ink/Cursor Buffers
The Ink/Cursor buffers contain formatted image data for the Ink Layer or Hardware Cursor. There
may be several Ink/Cursor images stored in the display buffer but only one may be active at any
given time.
The active Ink/Cursor buffer is selected by the Ink/Cursor Start Address register (REG[30h]). This
register defines the start address for the active Ink/Cursor buffer. The Ink/Cursor buffer must be
positioned where it does not conflict with the image buffer and half-frame buffer. The start address
for the Ink/Cursor buffer is programmed as shown in the following table:
Table 12-1: Ink/Cursor Start Address Encoding
Ink/Cursor Start
Address Bits [7:0]
Start Address (Bytes)
0
Display Buffer Size - 1024
Comments
This default value is suitable for a cursor
when there is no half-frame buffer.
These positions can be used to:
Display Buffer Size (n × 8192)
n = 255...1
• position an Ink buffer at the top of the
display buffer;
• position an Ink buffer between the image
and half-frame buffers;
• position a Cursor buffer between the image
and half-frame buffers;
• select from a multiple of Cursor buffers.
The Ink/Cursor image is stored contiguously. The address offset from the starting word of line n to
the starting word of line n+1 is calculated as follows:
Ink Address Offset (words) = REG[04h] + 1
Cursor Address Offset (words) = 8
12.2 Ink/Cursor Data Format
The Ink/Cursor image is always 2 bit-per-pixel. The following diagram shows the Ink/Cursor data
format for a little-endian system.
2 bpp:
bit 7
bit 0
Byte 0
A0
B0
A1
B1
A2
B2
A3
B3
Byte 1
A4
B4
A5
B5
A6
B6
A7
B7
P0 P1 P2 P3 P4 P5 P6 P7
Pn = (An, Bn)
Panel Display
Host Address
Ink/Cursor Buffer
Figure 12-1: Ink/Cursor Data Format
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 135
The image data for pixel n, (An,Bn), selects the color for pixel n as follows:
Table 12-2: Ink/Cursor Color Select
(An,Bn)
Color
Comments
00
Color 0
Ink/Cursor Color 0 Register, (REG[2Dh],REG[2Ch])
01
Color 1
Ink/Cursor Color 1 Register, (REG[2Fh],REG[2Eh])
10
Background
11
Inverted Background
Ink/Cursor is transparent – show background
Ink/Cursor is transparent – show inverted
background
12.3 Ink/Cursor Image Manipulation
12.3.1 Ink Image
The Ink image should always start at the top left pixel, i.e. Cursor X Position and Cursor Y Position
registers should always be set to zero. The width and height of the ink image are automatically calculated to completely cover the display.
12.3.2 Cursor Image
The Cursor image size is always 64x64 pixels. The Cursor X Position and Cursor Y Position
registers specify the position of the top left pixel. The following diagram shows how to position a
cursor.
P(0;0)
P(x;y)
P(x+63;y)
P(x;y+63)
P(x+63;y+63)
Figure 12-2: Cursor Positioning
where
x = (REG[29h] bits [1:0], REG[28h])
y = (REG[2Bh] bits [1:0], REG[2Ah])
REG[29h] bit 7 = 0
REG[2Bh] bit 7 = 0
Note
There is no means to set a negative cursor position. If a cursor must be set to a negative position,
this must be dealt with through software.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 136
Epson Research and Development
Vancouver Design Center
13 SwivelView™
13.1 Concept
Computer displays are refreshed in landscape – from left to right and top to bottom; computer images
are stored in the same manner. When a display is used in SwivelView it becomes necessary to rotate
the display buffer image by 90°. SwivelView rotates the image 90° clockwise as it is written to the
display buffer. This rotation is done in hardware and is transparent to the programmer for all display
buffer reads and writes.
SwivelView uses a 1024 × 1024 pixel virtual image. The following figures show how the
programmer sees the image and how the image is actually stored in the display buffer. The display
is refreshed in the following sense: C–A–D–B. The application image is written to the SED1355 in
the following sense: A–B–C–D. The SED1355 rotates and stores the application image in the
following sense: C–A–D–B, the same sense as display refresh.
1024 pixels
B
portrait
window
H
B
D
W
1024 pixels
display
start
address
portrait
window
A
C
A
1024 pixels
W
D
C
H
image seen by programmer
image in display buffer
Figure 13-1: Relationship Between The Screen Image and the Image Residing in the Display Buffer
Note
The image must be written with a 1024 pixel offset between adjacent lines (e.g. 1024 bytes for
8 bpp mode or 2048 bytes for 16 bpp mode) and a display start address that is non-zero.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 137
13.2 Image Manipulation in SwivelView
Display Start Address
It can be seen from Figure 13-1 that the top left pixel of the display is not at the top left corner of the
virtual image, i.e. it is non-zero. The Display Start Address register must be set accordingly:
Display Start Address (words)
=(1024 - W)
for 16 bpp mode
=(1024 - W) / 2
for 8 bpp mode
Memory Address Offset
The Memory Address Offset register must be set for a 1024 pixel offset:
Memory Address Offset (words) =1024
for 16 bpp mode
=512
for 8 bpp mode
Horizontal Panning
Horizontal panning is achieved by changing the start address. Panning of the portrait window to the
right by 1 pixel is achieved by adding 1024 pixels to the Display Start Address register (or
subtracting if panning to the left).
• Panning to right by 1 pixel: add current start address by 1024 (16 bpp mode) or 512 (8 bpp
mode).
• Panning to left by 1 pixel: subtract current start address by 1024 (16 bpp mode) or 512 (8 bpp
mode).
How far the portrait window can be panned to the right is limited not only by 1024 pixels but also
by the amount of physical memory installed.
Vertical Scrolling
Vertical scrolling is achieved by changing the Display Start Address register and/or changing the
Pixel Panning register.
• Increment/decrement Display Start Address register in 8 bpp mode: scroll down/up by 2 lines.
• Increment/decrement Display Start Address register in 16 bpp mode: scroll down/up by 1 line.
• Increment/decrement Pixel Panning register in 8 bpp or 16 bpp mode: scroll down/up by 1 line.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 138
Epson Research and Development
Vancouver Design Center
13.3 Physical Memory Requirement
Because the programmer must now deal with a virtual display, the amount of image buffer required
for a particular display mode has increased. The minimum amount of image buffer required is:
Minimum Required Image Buffer (bytes)
=(1024 × H) × 2
for 16 bpp mode
=(1024 × H)
for 8 bpp mode
For single panel, the required display buffer size is the same as the image buffer required. For dual
panel, the display buffer required is the sum of the image buffer required and the half-frame buffer
memory required. The half-frame buffer memory requirement is:
Half-Frame Buffer Memory (bytes)
=(W × H) / 4
for color mode
=(W × H) / 16
for monochrome mode
The half-frame buffer memory is always located at the top of the physical memory.
For simplicity the hardware cursor and ink layer memory requirement is ignored. The hardware
cursor and ink layer memory must be located at 16K byte boundaries and it must not overlap the
image buffer and half-frame buffer memory areas.
Even though the virtual display is 1024×1024 pixels, the actual panel window is always smaller.
Thus it is possible for the display buffer size to be smaller than the virtual display but large enough
to fit both the required image buffer and the half-frame buffer memory. This poses a maximum
“accessible” horizontal virtual size limit.
Maximum Accessible Horizontal Virtual Size (pixels)
= (Physical Memory – Half-Frame Buffer Memory) / 2048
for 16 bpp mode
= (Physical Memory – Half-Frame Buffer Memory) / 1024
for 8 bpp mode
For example, a 640×480 single panel running 8 bpp mode requires 480K byte of image buffer and
0K byte of half-frame buffer memory. The virtual display size is 1024×1024 = 1M byte. The
programmer may use a 512K byte DRAM which is smaller than the 1M byte virtual display but
greater than the 480K byte minimum required image buffer. The maximum accessible horizontal
virtual size is = (512K byte - 0K byte) / 1024 = 512. The programmer therefore has room to pan the
portrait window to the right by 512 - 480 = 32 pixels. The programmer also should not read/write to
the memory beyond the maximum accessible horizontal virtual size because that memory is either
reserved for the half-frame buffer or not associated with any real memory at all.
The following table summarizes the DRAM size requirement for SwivelView using different panel
sizes and display modes. Note that DRAM size for the SED1355 is limited to either 512K byte or
2M byte. The calculation is based on the minimum required image buffer size. The calculated
minimum display buffer size is based on the image buffer and the half-frame buffer only; it does not
take into account the hardware cursor/ink layer and so it may or may not be sufficient to support it
– this is noted in the table. The hardware cursor requires 1K byte of memory and the 2-bit ink layer
requires (W × H) / 4 bytes of memory; both must reside at 16K byte boundaries but only one is
supported at a time. The table shows only one possible sprite/ink layer location – at the highest
possible 16K byte boundary below the half-frame buffer which is always at the top.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 139
Table 13-2 Minimum DRAM Size Required for SwivelView
Panel Size
Panel Type
Color
Single
Mono
320 × 240
Color
Dual
Mono
Color
Single
Mono
640 × 480
Color
Dual
Mono
Color
Single
Mono
800 × 600
Color
Dual
Mono
Display
Mode
Display
Buffer Size
8 bpp
16 bpp
8 bpp
16 bpp
8 bpp
16 bpp
8 bpp
16 bpp
8 bpp
16 bpp
8 bpp
16 bpp
8 bpp
16 bpp
8 bpp
16 bpp
8 bpp
16 bpp
8 bpp
16 bpp
8 bpp
16 bpp
8 bpp
16 bpp
240KB
480KB
240KB
480KB
240KB
480KB
240KB
480KB
480KB
960KB
480KB
960KB
480KB
960KB
480KB
960KB
600KB
1.2MB
600KB
1.2MB
600KB
1.2MB
600KB
1.2MB
Sprite/Ink
HalfInk/Cursor
Minimum
Layer Buffer
Frame
Layer Location
DRAM Size
Size
Buffer Size
0KB
18.75KB
496KB/ 480KB
512KB
1KB/18.75KB
4.69KB
0KB
75KB
18.75KB
480KB/464KB
480KB/-496KB/480KB
496KB/-2032KB/1968KB
496KB/--
2MB
512KB
2MB
1KB/75KB
512KB
2032K/1968K
496KB/-2032KB/1968KB
0KB
2MB
117.19KB
1KB/
117.19KB
2032KB/1920KB
29.30KB
Where KB = K bytes and MB = 1024K bytes
13.4 Limitations
The following limitations apply to SwivelView:
• Only 8 bpp and 16 bpp modes are supported – 1/2/4 bpp modes are not supported.
• Hardware cursor and ink layer images are not rotated – software rotation must be used. SwivelView must be turned off when the programmer is accessing the sprite or the ink layer.
• Split screen images appear side-by-side, i.e. the portrait display is split vertically.
• Pixel panning works vertically.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 140
Epson Research and Development
Vancouver Design Center
14 Clocking
14.1 Maximum MCLK: PCLK Ratios
Table 14-1: Maximum PCLK Frequency with EDO-DRAM
Display type
NRC
• Single Panel.
• CRT.
• Dual Monochrome/Color Panel with Half Frame Buffer
Disabled.
• Simultaneous CRT + Single Panel.
• Simultaneous CRT + Dual Monochrome/Color Panel
with Half Frame Buffer Disabled.
5, 4, 3
Ink
off
on
Maximum PCLK Allowed
1 bpp
2 bpp
4 bpp
8 bpp
16 bpp
MCLK
• Dual Monochrome Panel with Half Frame Buffer
Enabled.
• Simultaneous CRT + Dual Monochrome Panel with
Half Frame Buffer Enable.
5
MCLK/2
MCLK/2
MCLK/2
MCLK/2
MCLK/3
4
MCLK/2
MCLK/2
MCLK/2
MCLK/2
MCLK/3
3
MCLK
MCLK
MCLK/2
MCLK/2
MCLK/2
• Dual Color Panel with Half Frame Buffer Enabled.
• Simultaneous CRT + Dual Color Panel with Half
Frame Buffer Enable.
5
MCLK/2
MCLK/2
MCLK/2
MCLK/3
MCLK/3
4
MCLK/2
MCLK/2
MCLK/2
MCLK/2
MCLK/3
3
MCLK/2
MCLK/2
MCLK/2
MCLK/2
MCLK/3
• Single Panel.
• CRT.
• Dual Monochrome/Color Panel with Half Frame Buffer
Disabled.
• Simultaneous CRT + Single Panel.
• Simultaneous CRT + Dual Monochrome/Color Panel
with Half Frame Buffer Disabled.
5
MCLK/2
MCLK/2
MCLK/2
MCLK/2
MCLK/3
4
MCLK
MCLK
MCLK/2
MCLK/2
MCLK/2
3
MCLK
MCLK
MCLK
MCLK/2
MCLK/2
• Dual Monochrome Panel with Half Frame Buffer
Enabled.
• Simultaneous CRT + Dual Monochrome Panel with
Half Frame Buffer Enable.
5
MCLK/2
MCLK/3
MCLK/3
MCLK/3
MCLK/3
4
MCLK/2
MCLK/2
MCLK/2
MCLK/3
MCLK/3
3
MCLK/2
MCLK/2
MCLK/2
MCLK/2
MCLK/3
• Dual Color Panel with Half Frame Buffer Enabled.
• Simultaneous CRT + Dual Color Panel with Half
Frame Buffer Enable.
5
MCLK/3
MCLK/3
MCLK/3
MCLK/3
MCLK/4
4
MCLK/2
MCLK/2
MCLK/3
MCLK/3
MCLK/3
3
MCLK/2
MCLK/2
MCLK/2
MCLK/2
MCLK/3
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 141
Table 14-2: Maximum PCLK Frequency with FPM-DRAM
Ink
off
on
Display type
NRC
• Single Panel.
• CRT.
• Dual Monochrome/Color Panel with Half Frame Buffer
Disabled.
• Simultaneous CRT + Single Panel.
• Simultaneous CRT + Dual Monochrome/Color Panel
with Half Frame Buffer Disabled.
5, 4, 3
Maximum PCLK allowed
1 bpp
2 bpp
4 bpp
8 bpp
16 bpp
MCLK
• Dual Monochrome with Half Frame Buffer Enabled.
• Simultaneous CRT + Dual Monochrome Panel with
Half Frame Buffer Enable.
5
MCLK/2
MCLK/2
MCLK/2
MCLK/2
MCLK/3
4
MCLK/2
MCLK/2
MCLK/2
MCLK/2
MCLK/2
3
MCLK
MCLK
MCLK
MCLK/2
MCLK/2
• Dual Color with Half Frame Buffer Enabled.
• Simultaneous CRT + Dual Color Panel with Half
Frame Buffer Enable.
5
MCLK/2
MCLK/2
MCLK/2
MCLK/2
MCLK/3
4
MCLK/2
MCLK/2
MCLK/2
MCLK/2
MCLK/3
3
MCLK/2
MCLK/2
MCLK/2
MCLK/2
MCLK/2
• Single Panel.
• CRT.
• Dual Monochrome/Color Panel with Half Frame Buffer
Disabled.
• Simultaneous CRT + Single Panel.
• Simultaneous CRT + Dual Monochrome/Color Panel
with Half Frame Buffer Disabled.
5
MCLK/2
MCLK/2
MCLK/2
MCLK/2
MCLK/3
4
MCLK
MCLK
MCLK/2
MCLK/2
MCLK/2
3
MCLK
MCLK
MCLK
MCLK/2
MCLK/2
• Dual Monochrome with Half Frame Buffer Enabled.
• Simultaneous CRT + Dual Monochrome Panel with
Half Frame Buffer Enable.
5
MCLK/2
MCLK/2
MCLK/3
MCLK/3
MCLK/3
4
MCLK/2
MCLK/2
MCLK/2
MCLK/2
MCLK/3
3
MCLK/2
MCLK/2
MCLK/2
MCLK/2
MCLK/3
• Dual Color with Half Frame Buffer Enabled.
• Simultaneous CRT + Dual Color Panel with Half
Frame Buffer Enable.
5
MCLK/3
MCLK/3
MCLK/3
MCLK/3
MCLK/4
4
MCLK/2
MCLK/2
MCLK/2
MCLK/3
MCLK/3
3
MCLK/2
MCLK/2
MCLK/2
MCLK/2
MCLK/3
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 142
Epson Research and Development
Vancouver Design Center
14.2 Frame Rate Calculation
The frame rate is calculated using the following formula:
PCLK max
FrameRate = ----------------------------------------------------------------------------------------( HDP + HNDP ) × ( VDP + VNDP )
Where:
VDP
VNDP
= Vertical Display Period
= Vertical Non-Display Period
HDP
HNDP
= Horizontal Display Period
= Horizontal Non-Display Period
Ts
= Pixel Clock
= REG[09h] bits [1:0], REG[08h] bits [7:0] + 1
= REG[0Ah] bits [5:0] + 1
= in table below
= ((REG[04h] bits [6:0]) + 1) * 8Ts
= ((REG[05h] bits [4:0]) + 1) * 8Ts
= given in table below
= PCLK
Table 14-3: Example Frame Rates with Ink Disabled
DRAM Type1
(Speed Grade)
50ns
EDO-DRAM
Display
• Single Panel.
• CRT.
• Dual Monochrome/Color Panel
with Half Frame Buffer Disabled.5
• Simultaneous CRT + Single Panel.
• Simultaneous CRT + Dual
Monochrome/Color Panel with Half
Frame Buffer Disabled.5
MClk = 40MHz
NRC = 4
NRP = 1.5
NRCD = 2
800x6002
640x480
640x240
480x320
320x240
• Dual Color with Half Frame Buffer
Enabled.
• Dual Mono with Half Frame Buffer
Enabled.
SED1355
X23A-A-001-11
Color Depth
Resolution
(bpp)
800x6002,3
640x480
Maximum
Maximum Frame
Minimum
Pixel
Rate (Hz)
Panel
Clock
HNDP(Ts) Panel4
CRT
(MHz)
1/2/4/8
32
80
60
15/166
56
78
60
1/2/4/8
32
123
85
15/16
56
119
85
1/2/4/8
32
247
-
56
242
-
1/2/4/8
32
243
-
15/16
40
15/16
56
232
-
1/2/4/8
32
471
-
15/16
56
441
-
80
-
1/2/4/8
20
32
15/166
13.3
32
53
-
1/2/4/8
20
32
123
-
15/16
13.3
32
82
-
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 143
Table 14-3: Example Frame Rates with Ink Disabled (Continued)
DRAM Type1
(Speed Grade)
60ns
EDO-DRAM
Display
• Single Panel.
• CRT.
• Dual Mono/Color Panel with Half
Frame Buffer Disabled.5
• Simultaneous CRT + Single Panel.
• Simultaneous CRT + Dual
Mono/Color Panel with Half Frame
Buffer Disabled.5
MClk = 33MHz
NRC = 4
NRP = 1.5
NRCD = 2
800x6002
640x480
640x240
480x320
320x240
• Dual Color with Half Frame Buffer
Enabled.
• Dual Mono with Half Frame Buffer
Enabled.
60ns
Color Depth
Resolution
(bpp)
• Single Panel.
• CRT.
• Dual Mono/Color Panel with Half
Frame Buffer Disabled.5
• Simultaneous CRT + Single Panel.
• Simultaneous CRT + Dual
Mono/Color Panel with Half Frame
Buffer Disabled.5
800x6002,3
640x480
800x6002
640x480
640x240
480x320
FPM-DRAM
MClk = 25MHz
NRC = 4
NRP = 1.5
• Dual Mono with Half Frame Buffer
NRCD = 2
Enabled.
• Dual Color with Half Frame Buffer
Enabled.
320x240
Maximum
Maximum Frame
Minimum
Pixel
Rate (Hz)
Panel
Clock
HNDP(Ts) Panel4
CRT
(MHz)
1/2/4/8
32
15/166
1/2/4/8
15/16
1/2/4/8
15/16
33
66
55
56
65
55
32
101
78
56
98
78
32
203
-
56
200
-
1/2/4/8
32
200
-
15/16
56
196
-
1/2/4/8
32
388
-
56
380
-
1/2/4/8
15/16
16.5
32
66
-
15/166
11
32
43
-
1/2/4/8
16.5
32
103
-
15/16
11
32
68
-
1/2/4/8
32
50
-
15/166
56
48
-
1/2/4/8
32
77
60
15/16
56
75
60
1/2/4/8
32
142
-
56
136
-
32
152
-
15/16
25
1/2/4/8
15/16
56
145
-
1/2/4/8
32
294
-
15/16
56
280
-
2
1/2/4/8/15/166
12.5
32
50
-
640x480
1/2/4/8/15/16
12.5
32
77
-
640x400
1/2/4/8/15/16
12.5
32
92
-
1/2/4/8
12.5
32
50
-
15/166
8.33
32
33
-
1/2/4/8
12.5
32
77
-
15/16
8.33
32
51
-
800x600
800x6002,3
640x480
1.
Must set NRC = 4MCLK. See REG[22h], Performance Enhancement Register.
2.
800x600 @ 16 bpp requires 2M bytes of display buffer for all display types.
3.
800x600 @ 8 bpp on a dual color panel requires 2M bytes of display buffer if the half frame
buffer is enabled.
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 144
Epson Research and Development
Vancouver Design Center
4.
Optimum frame rates for panels range from 60Hz to 150Hz. If the maximum refresh rate is too
high for a panel, MCLK should be reduced or PCLK should be divided down.
5.
Half Frame Buffer disabled by REG[1Bh] bit 0.
6.
When setting a horizontal resolution greater than 767 pixels, with a color depth of 15/16 bpp,
the Memory Offset Registers (REG[16h], REG[17h]) must be set to a virtual horizontal pixel
resolution of 1024.
14.3 Bandwidth Calculation
When calculating the average bandwidth, there are two periods that must be calculated separately.
The first period is the time when the CPU is in competition with the display refresh fetches. The CPU
can only access the memory when the display refresh releases the memory controller. The CPU
bandwidth during this period is called the “bandwidth during display period”.
The second period is the time when the CPU has full access to the memory, with no competition from
the display refresh. The CPU bandwidth during this period is called the “bandwidth during non
display period.”
To calculate the average bandwidth, calculate the percentage of time between display period and non
display period. The percentage of display period is multiplied with the bandwidth during display
period. The percentage of non display period is multiplied with the bandwidth during non display
period. The two products are summed to provide the average bandwidth.
Bandwidth during non display period
Based on simulation, it requires a minimum of 12 MCLKs to service one, two byte, CPU access to
memory. This includes all the internal handshaking and assumes that NRC is set to 4MCLKs and the
wait state bits are set to 10b.
Bandwidth during non display period = f(MCLK) / 6 Mb/s
Bandwidth during display period
The amount of time taken up by display refresh fetches is a function of the color depth, and the
display type. Below is a table of the number of MCLKs required for various memory fetches to
display 16 pixels. Assuming NRC = 4MCLKs.
Table 14-4: Number of MCLKs required for various memory access
SED1355
X23A-A-001-11
Memory access
Number of MCLKs
Half Frame Buffer, monochrome
7
Half Frame Buffer, color
11
Display @ 1 bpp
4
Display @ 2 bpp
5
Display @ 4 bpp
7
Display @ 8 bpp
11
Display @ 16 bpp
19
CPU
4
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 145
,
Table 14-5: Total # MCLKs taken for Display refresh
Display
•
•
•
•
•
Single Panel.
CRT.
Dual Monochrome/Color Panel with Half Frame Buffer Disabled.
Simultaneous CRT + Single Panel.
Simultaneous CRT + Dual Monochrome/Color Panel with Half Frame
Buffer Disabled.
MCLKs for Display Refresh
1 bpp 2 bpp 4 bpp 8 bpp 16 bpp
4
5
7
11
19
• Dual Monochrome Panel with Half Frame Buffer Enabled.
• Simultaneous CRT + Dual Monochrome Panel with Half Frame
Buffer Enable.
11
12
14
18
26
• Dual Color Panel with Half Frame Buffer Enabled.
15
16
18
22
30
Bandwidth during display period = MIN (bandwidth during non display period, B/C/D)
where B = number of MCLKs left available for CPU access after every 16 pixels drawn
= (f(MCLK)/f(PCLK) * 16 - Total MCLK for Display refresh), units in MCLKs 16 pixels
where C = number of MCLKs required to service 1 CPU access (2 bytes of data)
= 4, units in MCLKs/2 bytes
where D = time to draw 16 pixels
= 16 / f(PCLK), units in 16 pixels
The minimum function limits the bandwidth to the bandwidth available during non display period
should the display fetches constitute a small percentage of the overall memory activity.
For 16 bpp single panel/CRT/dual panel with half frame buffer disable, the number of MCLKs
required to fetch 16 pixels when PCLK = MCLK exceeds 16. In this case, the display fetch does not
allow any CPU access during the display period. CPU access can only be achieved during non
display periods.
Average Bandwidth
All displays have a horizontal non display period, and a vertical non display period. The formula for
calculating the percentage of non display period is as follows
Percentage of non display period = (HTOT * VTOT - WIDTH * HEIGHT)/(HTOT * VTOT)
Percentage of non display period for CRT = (800*525 - 640*480)/(800*525) = 26.6%
Percentage of non display period for single panel = (680*482 - 640*480)/680*482) = 6.2%
Percentage of non display period for dual panel = (680*242 - 640*240)/680*242) = 6.6%
Average Bandwidth =
Percentage of non display period * Bandwidth during non display period +
(1- Percentage of non display period) * Bandwidth during display period
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 146
Epson Research and Development
Vancouver Design Center
Table 14-6: Theoretical Maximum Bandwidth M byte/sec, Cursor/Ink disabled
DRAM Type1
(Speed Grade)
640x480 Display
• CRT.
• Simultaneous CRT + Single Panel.
• Simultaneous CRT + Dual
Monochrome/Color Panel with Half
Frame Buffer Disabled.
50ns
• Single Panel.
• Dual Monochrome/Color Panel with Half
Frame Buffer Disabled.
EDO-DRAM
MCLK = 40MHz • Dual Monochrome Panel with Half Frame
Buffer Enabled.
• Simultaneous CRT + Dual Mono Panel
with Half Frame Buffer Enable.
• Dual Color Panel with Half Frame Buffer
Enabled.
• CRT.
• Simultaneous CRT + Single Panel.
• Simultaneous CRT + Dual
Monochrome/Color Panel with Half
Frame Buffer Disabled.
60ns
• Single Panel.
• Dual Monochrome/Color Panel with Half
Frame Buffer Disabled.
EDO-DRAM
MCLK = 33MHz • Dual Monochrome Panel with Half Frame
Buffer Enabled.
• Simultaneous CRT + Dual Monochrome
Panel with Half Frame Buffer Enable.
• Dual Color Panel with Half Frame Buffer
Enabled.
SED1355
X23A-A-001-11
Max. Pixel
Clock
(MHz)
Maximum Bandwidth (M byte/sec)
1 bpp
2 bpp
4 bpp
8 bpp
16 bpp
40
6.67
6.67
6.67
6.36
1.79
40
6.67
6.67
6.60
6.27
0.41
20
6.67
6.67
6.67
6.67
6.67
40
6.27
5.11
-
-
-
20
6.67
6.67
6.67
6.67
3.94
13.3
6.67
6.67
6.67
6.67
6.67
40
6.36
5.44
-
-
-
20
6.67
6.67
6.27
6.27
-
13.3
6.67
6.67
6.67
6.67
6.67
33
5.5
5.5
5.5
5.24
1.47
33
5.5
5.5
5.5
5.17
0.34
16.5
5.5
5.5
5.5
5.5
5.5
33
5.17
4.21
-
-
-
16.5
5.5
5.5
5.5
5.5
3.25
11
5.5
5.5
5.5
5.5
5.5
33
5.24
4.49
-
-
-
16.5
5.5
5.5
5.5
5.17
-
11
5.5
5.5
5.5
5.5
5.5
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 147
Table 14-6: Theoretical Maximum Bandwidth M byte/sec, Cursor/Ink disabled (Continued)
DRAM Type1
(Speed Grade)
640x480 Display
• CRT.
• Simultaneous CRT + Single Panel.
• Simultaneous CRT + Dual
Monochrome/Color Panel with Half
Frame Buffer Disabled.
60ns
• Single Panel.
• Dual Monochrome/Color Panel with Half
Frame Buffer Disabled.
FPM-DRAM
MCLK = 25MHz • Dual Monochrome with Half Frame Buffer
Enabled.
• Simultaneous CRT + Dual Monochrome
Panel with Half Frame Buffer Enable.
• Dual Color Panel with Half Frame Buffer
Enabled.
Hardware Functional Specification
Issue Date: 99/05/18
Maximum Bandwidth (M byte/sec)
Max. Pixel
Clock
(MHz)
1 bpp
2 bpp
4 bpp
8 bpp
16 bpp
25
4.16
4.16
4.16
3.97
1.11
25
4.16
4.16
4.16
3.92
0.26
12.5
4.16
4.16
4.16
4.16
4.16
25
3.92
3.19
-
-
-
12.5
4.16
4.16
4.16
4.16
2.46
8.3
4.16
4.16
4.16
4.16
4.16
25
3.97
3.40
-
-
-
12.5
4.16
4.16
4.16
3.92
-
8.33
4.16
4.16
4.16
4.16
4.16
SED1355
X23A-A-001-11
Page 148
Epson Research and Development
Vancouver Design Center
15 Power Save Modes
Three power save modes are incorporated into the SED1355 to meet the important need for power
reduction in the hand-held device market.
Table 15-1: Power Save Mode Function Summary
Power Save Mode (PSM)
Function
Normal
(Active)
No Display
LCDEnable = 0
CRTEnable = 0
Display Active?
Yes
No
No
No
Register Access Possible?
Yes
Yes
Yes
No
Memory Access Possible?
Yes
Yes
No
No
LUT Access Possible?
Yes
Yes
Yes
No
Software
Suspend
Hardware
Suspend
Table 15-2: Pin States in Power-save Modes
Pin State
Normal
(Active)
No Display
LCDEnable = 0
CRTEnable = 0
Software
Suspend
Hardware
Suspend
LCD outputs
Active
(LCDEnable = 1)
Forced Low2
Forced Low2
Forced Low2
LCDPWR
On
(LCDEnable = 1)
Off
Off
Off
DRAM outputs
Active
CBR Refresh
only
Refresh Only1
Refresh Only1
CRT/DAC outputs
Active
(CRTEnable = 1)
Disabled
Disabled
Disabled
Host Interface outputs
Active
Active
Active
Disabled
Pins
1.
Refresh method is selectable by REG[1Ah]. Supported methods are CBR refresh, self-refresh
or no refresh at all.
2.
The FPFRAME and FPLINE signals are set to their inactive states during power-down. The inactive states are determined by REG[07h] bit 6 and REG[0Ch] bit 6. A problem may occur if
the inactive state is high (typical TFT/D-TFD configuration) and power is removed from the
LCD panel.
For software suspend the problem can be solved in the following manner. At power-down, first
enable software suspend, then wait ~120 VNDP, and lastly reverse the polarity bits. At powerup, first disable software suspend, then revert the polarity bits back to the configuration state.
For hardware suspend an external hardware solution would be to use an AND gate on the sync
signal. One input of the AND gate is connected to a sync signal, the other input would be tied
to the panel’s logic power supply. When the panel’s logic power supply is removed, the sync
signal is forced low.
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
Epson Research and Development
Vancouver Design Center
Page 149
16 Mechanical Data
Unit: mm
128-pin QFP15 surface mount package
16.0 ± 0.4
14.0 ± 0.1
96
65
16.0 ± 0.4
64
14.0 ± 0.1
97
Index
128
33
32
0.4
0.16 ± 0.1
1.4 ± 0.1
0.125 ± 0.1
1
0.1
0~10°
0.5 ± 0.2
1.0
Figure 16-1: Mechanical Drawing QFP15
Hardware Functional Specification
Issue Date: 99/05/18
SED1355
X23A-A-001-11
Page 150
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-A-001-11
Hardware Functional Specification
Issue Date: 99/05/18
SED1355 Embedded RAMDAC LCD/CRT Controller
Programming Notes and Examples
Document Number: X23A-G-003-05
Copyright © 1998, 1999 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 3
Table of Contents
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2
Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1
3
Memory Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1
4
5
Memory Organization for One Bit-Per-Pixel (2 Colors/Gray Shades) . . . . . . . . . . . . . 12
3.1.2
Memory Organization for Two Bit-Per-Pixel (4 Colors/Gray Shades) . . . . . . . . . . . . . 12
3.1.3
Memory Organization for Four Bit-Per-Pixel (16 Colors/Gray Shades) . . . . . . . . . . . . 13
3.1.4
Memory Organization for Eight Bit-Per-Pixel (256 Colors/16 Gray Shades) . . . . . . . . . 13
3.1.5
Memory Organization for Fifteen Bit-Per-Pixel (32768 Colors/16 Gray Shades) . . . . . . . 14
3.1.6
Memory Organization for Sixteen Bit-Per-Pixel (65536 Colors/16 Gray Shades) . . . . . . . 14
Look-Up Table Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2
Look-Up Table Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Advanced Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.3
Virtual Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.1.1
Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1.2
Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Panning and Scrolling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.2.1
Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.2.2
Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Split Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.3.1
Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.3.2
Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
LCD Power Sequencing and Power Save Modes
. . . . . . . . . . . . . . . . . . . . . . . 31
6.1
Introduction to LCD Power Sequencing . . . . . . . . . . . . . . . . . . . . . . . . 31
6.2
Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.3
LCD Enable/Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Hardware Cursor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7.2
Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7.3
7.4
8
3.1.1
4.1
5.2
7
Display Buffer Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Look-Up Table (LUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1
6
Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Limitations
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.3.1
Updating Hardware Cursor Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.3.2
Reg[29h] And Reg[2Bh]
7.3.3
Reg [30h] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.3.4
No Top/Left Clipping on Hardware Cursor
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
. . . . . . . . . . . . . . . . . . . . . . . . . . 36
Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Hardware Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
8.1
Introduction To Hardware Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 37
8.2
SED1355 Hardware Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 4
9
Epson Research and Development
Vancouver Design Center
8.3
Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
8.4
Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
8.5
Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
CRT Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
9.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
9.1.1
CRT Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
9.1.2
Simultaneous Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
10 Identifying the SED1355 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
11 Hardware Abstraction Layer (HAL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
11.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
11.2 Contents of the HAL_STRUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
11.3 Using the HAL library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
11.4 API for 1355HAL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
11.5 Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
11.5.1
General HAL Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
11.5.2
Advanced HAL Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
11.5.3
Register / Memory Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
11.5.4
Color Manipulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
11.5.5
Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
11.5.6
Hardware Cursor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
11.5.7
Ink Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
11.5.8
Power Save . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
11.6 Porting LIBSE to a new target platform . . . . . . . . . . . . . . . . . . . . . . . . 71
11.6.1
Building the LIBSE library for SH3 target example . . . . . . . . . . . . . . . . . . . . . . .72
11.6.2
Building the HAL library for the target example . . . . . . . . . . . . . . . . . . . . . . . .73
11.6.3
Building a complete application for the target example . . . . . . . . . . . . . . . . . . . . .73
12 Sample Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
12.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
12.1.1
Sample code using the SED1355 HAL API . . . . . . . . . . . . . . . . . . . . . . . . . . .77
12.1.2
Sample code without using the SED1355 HAL API . . . . . . . . . . . . . . . . . . . . . . .80
12.1.3
Header Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
Appendix A
SED1355
X23A-G-003-05
Supported Panel Values
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 5
List of Tables
Table 2-1:
SED1355 Initialization Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Table 4-1:
Look-Up Table Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 4-2:
Recommended LUT Values for 1 Bpp Color Mode . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 4-3:
Example LUT Values for 2 Bpp Color Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 4-4:
Suggested LUT Values to Simulate VGA Default 16 Color Palette . . . . . . . . . . . . . . . . . 18
Table 4-5:
Suggested LUT Values to Simulate VGA Default 256 Color Palette . . . . . . . . . . . . . . . . 19
Table 4-6:
Recommended LUT Values for 1 Bpp Gray Shade . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 4-7:
Suggested Values for 2 Bpp Gray Shade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 4-8:
Suggested LUT Values for 4 Bpp Gray Shade . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 5-1:
Number of Pixels Panned Using Start Address . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 5-2:
Active Pixel Pan Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 7-1:
Ink/Cursor Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 7-2:
Cursor/Ink Start Address Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 11-1: HAL Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Table 12-1: Passive Single Panel @ 320x240 with 40MHz Pixel Clock . . . . . . . . . . . . . . . . . . . . 1 01
Table 12-2: Passive Single Panel @ 640x480 with 40MHz Pixel Clock . . . . . . . . . . . . . . . . . . . . 101
Table 12-3: Passive Dual Panel @ 640x480 with 40MHz Pixel Clock . . . . . . . . . . . . . . . . . . . . . 102
Table 12-4: TFT Single Panel @ 640x480 with 25.175 MHz Pixel Clock . . . . . . . . . . . . . . . . . . . 102
List of Figures
Figure 3-1:
Pixel Storage for 1 Bpp (2 Colors/Gray Shades) in One Byte of Display Buffer . . . . . . . . . 12
Figure 3-2:
Pixel Storage for 2 Bpp (4 Colors/Gray Shades) in One Byte of Display Buffer . . . . . . . . . 12
Figure 3-3:
Pixel Storage for 4 Bpp (16 Colors/Gray Shades) in One Byte of Display Buffer . . . . . . . . . 13
Figure 3-4:
Pixel Storage for 8 Bpp (256 Colors/16 Gray Shades) in One Byte of Display Buffer . . . . . . 13
Figure 3-5:
Pixel Storage for 15 Bpp (32768 Colors/16 Gray Shades) in Two Bytes of Display Buffer . . . . 14
Figure 3-6:
Pixel Storage for 16 Bpp (65536 Colors/16 Gray Shades) in Two Bytes of Display Buffer . . . . 14
Figure 5-1:
Viewport Inside a Virtual Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 5-2:
Memory Address Offset Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 5-3:
Screen 1 Start Address Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 5-4:
Pixel Panning Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 5-5:
320x240 Single Panel For Split Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 5-6:
Screen 1 Line Compare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 5-7:
Screen 2 Display Start Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 11-1: Components needed to build 1355 HAL application . . . . . . . . . . . . . . . . . . . . . . . . 71
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 6
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 7
1 Introduction
This guide describes how to program the SED1355 Embedded RAMDAC LCD/CRT Controller.
The guide presents the basic concepts of the LCD/CRT controller and provides methods to directly
program the registers. It explains some of the advanced techniques used and the special features of
the SED1355.
The guide also introduces the Hardware Abstraction Layer (HAL), which is designed to simplify the
programming of the SED1355. Most SED135x, SED137x and SED138x products support the HAL
allowing OEMs to switch chips with relative ease.
This document will be updated as appropriate. Please check the Epson Electronics America Website
at http://www.eea.epson.com for the latest revision of this document before beginning any
development.
We appreciate your comments on our documentation. Please contact us via email at
[email protected]
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 8
Epson Research and Development
Vancouver Design Center
2 Initialization
This section describes how to initialize the SED1355. Sample code to perform the initialization is
provided in the file INIT1355.C available from Epson.
SED1355 initialization can be broken into three steps. First, enable the SED1355 controller (if
necessary identify the specific controller). Next, set all the registers to their initial values. Finally,
program the Look-Up Table (LUT) with color values. This section does not deal with programming
the LUT, see Section 4 of this manual for LUT programming details.
Note
When using an ISA evaluation board in a PC (i.e. SDU1355B0C), there are two additional steps
that must be carried out before initialization. First, confirm that 16-bit mode is enabled by writing to address F80000h. Then, if hardware suspend is enabled, disable suspend mode by writing
to F00000h. For further information on ISA evaluation boards refer to the SDU1355B0C Rev. 1.0
ISA Bus Evaluation Board User Manual, document number X23A-G-004-xx.
The following table represents the sequence and values written to the SED1355 registers to control
a configuration with these specifications:
• 640x480 color dual passive format 1 LCD @ 75Hz.
• 8-bit data interface.
• 8 bit-per-pixel (bpp) - 256 colors.
• 31.5 MHz input clock.
• 50 ns EDO-DRAM, 2 CAS, 4 ms refresh, CAS before RAS.
Table 2-1: SED1355 Initialization Sequence
Register
Value
Notes
See Also
[1B]
0000 0000 Enable the host interface
[23]
1000 0000 Disable the FIFO
[01]
Memory configuration
0011 0000 - divide ClkI by 512 to get 4 ms for 256 refresh cycles
- this is 2-CAS# EDO memory
[22]
Performance Enhancement 0 - refer to the hardware
0100 1000
specification for a complete description of these bits
[02]
0001 0110 Panel type - non-EL, 8-bit data, format 1, color, dual, passive
[03]
0000 0000 Mod rate used by older monochrome panels - set to 0
[04]
0100 1111 Horizontal display size = (Reg[04]+1)*8 = (79+1)*8 = 640 pixels
[05]
0000 0011
[06]
0000 0000 FPLINE start position - only required for CRT or TFT/D-TFD
[07]
0000 0000 FPLINE polarity set to active high
[08]
[09]
1110 1111 Vertical display size = Reg[09][08] + 1
= 0000 0000 1110 1111 + 1
0000 0000 = 239+1 = 240 lines (total height/2 for dual panels)
[0A]
0011 1000 Vertical non-display size = Reg[0A] + 1 = 57 + 1 = 58 lines
SED1355
X23A-G-003-05
SED1355 Hardware
Functional Specification,
document number
X23A-A-001-xx
see note for REG[16h] and
REG[17h]
Horizontal non-display size = (Reg[05]+1)*8 = (3+1)*8 = 32
pixels
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 9
Table 2-1: SED1355 Initialization Sequence (Continued)
Register
Value
Notes
[0B]
0000 0000 FPFRAME start position - only required for CRT or TFT/D-TFD
[0C]
0000 0000 FPFRAME polarity set to active high
[0D]
0000 1100
[0E]
[0F]
1111 1111 Line compare (Regs[0Eh] and[0Fh] set to maximum allowable
0000 0011 value. We can change this later if we want a split screen.
[10]
0000 0000
[11]
0000 0000
[12]
0000 0000
[13]
0000 0000
[14]
0000 0000
[15]
0000 0000
[16]
0100 0000 Memory Address Offset (Regs [17h] [16h])
- 640 pixels = 640 bytes = 320 words = 140h words
Note: When setting a horizontal resolution greater than 767
0000 0001 pixels, with a color depth of 15/16 bpp, the Memory Offset
Registers (REG[16h], REG[17h]) must be set to a virtual
horizontal pixel resolution of 1024.
[17]
Display mode - hardware portrait mode disabled, 8 bpp and
LCD disabled, enable LCD in last step of this example.
‘
Screen 1 Start Address (Regs [10h], [11h], and [12h]) set to 0.
This will start the display in the first byte of the display buffer.
Screen 2 Start Address (Regs [13h], [14h], and [15h]) to offset
0. Screen 2 Start Address in not used at this time.
[18]
0000 0000 Set pixel panning for both screens to 0
[19]
0000 0001
[1A]
0000 0000 Enable LCD Power
[1C]
[1D]
0000 0000 MD Configuration Readback - we write a 0 here to keep the
0000 0000 register configuration logic simpler
[1E]
0000 0000
[1F]
0000 0000
[20]
0000 0000
[21]
0000 0000
Programming Notes and Examples
Issue Date: 99/04/27
See Also
Clock Configuration - set PClk to MClk/2 - the specification says
that for a dual color panel the maximum PClk is MClk/2
General I/O Pins - set to zero.
General I/O Pins Control - set to zero.
SED1355
X23A-G-003-05
Page 10
Epson Research and Development
Vancouver Design Center
Table 2-1: SED1355 Initialization Sequence (Continued)
Register
Value
[24]
0000 0000
[26]
0000 0000
[27]
0000 0000
[28]
0000 0000
[29]
0000 0000
Notes
See Also
[2C]
The remaining register control operation of the LUT and
0000 0000 hardware cursor/ink layer. During the chip initialization none of
0000 0000 these registers needs to be set. It is safe to write them to zero
as this is the power-up value for the registers.
0000 0000
[2D]
0000 0000
[2E]
0000 0000
[2F]
0000 0000
[30]
0000 0000
[31]
0000 0000
[2A]
[2B]
[23]
0000 0000 Enable FIFO, mask in appropriate FIFO threshold bits
[0D]
0000 1101
SED1355
X23A-G-003-05
SED1355 Hardware
Functional Specification,
document number
X23A-A-001-xx
Display mode - hardware portrait mode disabled, 8 bpp and
LCD enabled
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 11
2.1 Miscellaneous
This section of the notes contains recommendations which can be set at initialization time to improve
display image quality.
At high color depths the display FIFO introduces two conditions which must be accounted for in
software. Simultaneous display while using a dual passive panel introduces another possible register
change.
Display FIFO Threshold
At 15/16 bit-per-pixel the display FIFO threshold (bits 0-4 of register [23h]) must be programmed
to a value other than ’0’. Product testing has shown that at these color depths a better quality image
results when the display FIFO threshold is set to a value of 1Bh.
Memory Address Offset
When an 800x600 display mode is selected at 15 or 16 bpp, memory page breaks can disrupt the
display buffer fetches. This disruption produces a visible flicker on the display. To avoid this set the
Memory Address Offset (Reg [16h] and Reg [17h]) to 200h. This sets a 1024 pixel line which aligns
the memory page breaks and reduces any flicker.
Half Frame Buffer Disable
The half frame buffer is an SED1355 mechanism which pre-digitizes display data for dual panel
displays. However, for proper simultaneous display operation the half frame buffer (HFB) must be
disabled. When running simultaneous display with a dual panel the pattern used by the Frame Rate
Modulator may need to be adjusted. This can be accomplished using the Alternate FRM Register
Reg[31h]. In this case, the recommended value for Reg[31h] of FFh, may produce more visually
appealing output. For further information on the half frame buffer and the Alternate FRM Register
see the SED1355 Hardware Functional Specification, document number X23A-A-001-xx.
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 12
Epson Research and Development
Vancouver Design Center
3 Memory Models
The SED1355 is capable of several color depths. The memory model for each color depth is packed
pixel. Packed pixel data changes with each color depth from one byte containing eight consecutive
pixels up to two bytes being required for one pixel.
3.1 Display Buffer Location
The SED1355 requires either a 512K byte or 2M byte block of memory to be decoded by the system.
System logic will determine the location of this memory block. See Section 9 of the Hardware
Functional Specification, document number X23A-A-001-xx, for details.
3.1.1 Memory Organization for One Bit-Per-Pixel (2 Colors/Gray Shades)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Pixel 0
Pixel 1
Pixel 2
Pixel 3
Pixel 4
Pixel 5
Pixel 6
Pixel 7
Figure 3-1: Pixel Storage for 1 Bpp (2 Colors/Gray Shades) in One Byte of Display Buffer
In this memory format each byte of display buffer contains eight adjacent pixels. Setting or resetting
any pixel will require reading the entire byte, masking out the appropriate bits and, if necessary,
setting the bits to ’1’.
One bit pixels provide two gray shade/color possibilities. For monochrome panels the two gray
shades are generated by indexing into the first two elements of the green component of the Look-Up
Table (LUT). For color panels the two colors are derived by indexing into positions 0 and 1 of the
Look-Up Table.
3.1.2 Memory Organization for Two Bit-Per-Pixel (4 Colors/Gray Shades)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Pixel 0
Bit 1
Pixel 0
Bit 0
Pixel 1
Bit 1
Pixel 1
Bit 0
Pixel 2
Bit 1
Pixel 2
Bit 0
Pixel 3
Bit 1
Pixel 3
Bit 0
Figure 3-2: Pixel Storage for 2 Bpp (4 Colors/Gray Shades) in One Byte of Display Buffer
In this memory format each byte of display buffer contains four adjacent pixels. Setting or resetting
any pixel will require reading the entire byte, masking out the appropriate bits and, if necessary,
setting the bits to '1'.
Two bit pixels are capable of displaying four gray shade/color combinations. For monochrome
panels the four gray shades are generated by indexing into the first four elements of the green
component of the Look-Up Table. For color panels the four colors are derived by indexing into
positions 0 through 3 of the Look-Up Table.
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 13
3.1.3 Memory Organization for Four Bit-Per-Pixel (16 Colors/Gray Shades)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Pixel 0
Bit 3
Pixel 0
Bit 2
Pixel 0
Bit 1
Pixel 0
Bit 0
Pixel 1
Bit 3
Pixel 1
Bit 2
Pixel 1
Bit 1
Pixel 1
Bit 0
Figure 3-3: Pixel Storage for 4 Bpp (16 Colors/Gray Shades) in One Byte of Display Buffer
In this memory format each byte of display buffer contains two adjacent pixels. Setting or resetting
any pixel will require reading the entire byte, masking out the upper or lower nibble (4 bits) and
setting the appropriate bits to ’1’.
Four bit pixels provide 16 gray shade/color possibilities. For monochrome panels the gray shades
are generated by indexing into the first 16 elements of the green component of the Look-Up Table.
For color panels the 16 colors are derived by indexing into the first 16 positions of the Look-Up
Table.
3.1.4 Memory Organization for Eight Bit-Per-Pixel (256 Colors/16 Gray Shades)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
One Pixel
Figure 3-4: Pixel Storage for 8 Bpp (256 Colors/16 Gray Shades) in One Byte of Display Buffer
In eight bit-per-pixel mode each byte of display buffer represents one pixel on the display. At this
color depth the read-modify-write cycles of the lessor pixel depths are eliminated.
Each byte indexes into one of the 256 positions of the Look-Up Table. The SED1355 LUT supports
four bits per primary color, therefore this translates into 4096 possible colors when color mode is
selected. To display the fullest dynamic range of colors will require careful selection of the colors in
the LUT indices and in the image to be displayed.
When monochrome mode is selected, the green component of the LUT is used to determine the gray
shade intensity. The green indices, with only four bits, can resolve 16 gray shades. In this situation
one might as well use four bit-per-pixel mode and conserve display buffer.
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 14
Epson Research and Development
Vancouver Design Center
3.1.5 Memory Organization for Fifteen Bit-Per-Pixel (32768 Colors/16 Gray Shades)
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Reserved
Red Bit 4
Red Bit 3
Red Bit 2
Red Bit 1
Red Bit 0
Green Bit 4
Green Bit 3
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Green Bit 2
Green Bit 1
Green Bit 0
Blue Bit 4
Blue Bit 3
Blue Bit 2
Blue Bit 1
Blue Bit 0
Figure 3-5: Pixel Storage for 15 Bpp (32768 Colors/16 Gray Shades) in Two Bytes of Display Buffer
In 15 bit-per-pixel mode the SED1355 is capable of displaying 32768 colors. The 32768 color pixel
is divided into four parts: one reserved bit, five bits for red, five bits for green, and five bits for blue.
In this mode the Look-Up Table is bypassed and output goes directly into the Frame Rate Modulator.
The full color range is only available on TFT/D-TFD or CRT displays. Passive LCD displays are
limited to using the four most significant bits from each of the red, green and blue portions of each
color. The result is 4096 (24 * 24 * 24) possible colors.
Should monochrome mode be chosen at this color depth, the output reverts to sending the four most
significant bits of the green LUT component to the modulator for a total of 16 possible gray shades.
In this situation one might as well use four bit-per-pixel mode and conserve display buffer.
3.1.6 Memory Organization for Sixteen Bit-Per-Pixel (65536 Colors/16 Gray Shades)
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Red Bit 4
Red Bit 3
Red Bit 2
Red Bit 1
Red Bit 0
Green Bit 5
Green Bit 4
Green Bit 3
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Green Bit 2
Green Bit 1
Green Bit 0
Blue Bit 4
Blue Bit 3
Blue Bit 2
Blue Bit 1
Blue Bit 0
Figure 3-6: Pixel Storage for 16 Bpp (65536 Colors/16 Gray Shades) in Two Bytes of Display Buffer
In 16 bit-per-pixel mode the SED1355 is capable of generating 65536 colors. The 65536 color pixel
is divided into three parts: five bits for red, six bits for green, and five bits for blue. In this mode the
Look-Up Table is bypassed and output goes directly into the Frame Rate Modulator.
The full color range is only available on TFT/D-TFD or CRT displays. Passive LCD displays are
limited to using the four most significant bits from each of the red, green and blue portions of each
color. The result is 4096 (24 * 24 * 24) possible colors.
When monochrome mode is selected, the green component of the LUT is used to determine the gray
shade intensity. The green indices, with only four bits, can resolve 16 gray shades. In this situation
one might as well use four bit-per-pixel mode and conserve display buffer.
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 15
4 Look-Up Table (LUT)
This section is supplemental to the description of the Look-Up Table architecture found in the
SED1355 Hardware Functional Specification. Covered here is a review of the LUT registers, recommendations for the color and gray shade LUT values, and additional programming considerations
for the LUT. Refer to the SED1355 Hardware Functional Specification, document number
X23A-A-001-xx for more detail.
The SED1355 Look-Up Table is used for both the CRT and panel interface and consists of 256
indexed red/green/blue entries. Each entry is 4 bits wide. Two registers, at offsets 24h and 26h,
control access to the LUT. Color depth affects how many indices will be used for image display.
In color modes, pixel values are used as indices to an RGB value stored in the Look-Up Table. In
monochrome modes only the green component of the LUT is used. The value in the display buffer
indexes into the LUT and the amount of green at that index controls the intensity. Monochrome
mode look-ups are done for the panel interface only. The CRT interface always receives the RGB
values from the Look-Up Table.
4.1 Look-Up Table Registers
REG[24h] Look-Up Table Address Register
LUT Address
Bit 7
LUT Address
Bit 6
LUT Address
Bit 5
Read/Write
LUT Address
Bit 4
LUT Address
Bit 3
LUT Address
Bit 2
LUT Address
Bit 1
LUT Address
Bit 0
LUT Address
The LUT address register selects which of the 256 LUT entries will be accessed. Writing to this
register will select the red bank. After three successive reads or writes to the data register this register
will be incremented by one.
REG[26h] Look-Up Table Data Register
LUT Data
Bit 3
LUT Data
Bit 2
LUT Data
Bit 1
Read/Write
LUT Data
Bit 0
n/a
n/a
n/a
n/a
LUT Data
This register is where the 4-bit red/green/blue data value is written or read. With each successive
read or write the internal bank select is incremented. Three reads from this register will result in
reading the red, then the green, and finally the blue values associated with the index set in the LUT
address register.
After the third read the LUT address register is incremented and the internal index points to the red
bank again.
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 16
Epson Research and Development
Vancouver Design Center
4.2 Look-Up Table Organization
• The Look-Up Table treats the value of a pixel as an index into an array of colors or gray shades.
For example, a pixel value of zero would point to the first LUT entry; a pixel value of 7 would
point to the eighth LUT entry.
• The value inside each LUT entry represents the intensity of the given color or gray shade. This
intensity can range in value between 0 and 0Fh.
• The SED1355 Look-Up Table is linear; increasing the LUT entry number results in a lighter
color or gray shade. For example, a LUT entry of 0Fh into the red LUT entry will result in a
bright red output while a LUT entry of 5 would result in a dull red.
Table 4-1: Look-Up Table Configurations
Display Mode
RED
1 bpp gray
2 bpp gray
4 bpp gray
8 bpp gray
15 bpp gray
16 bpp gray
1 bpp color
2 bpp color
4 bpp color
8 bpp color
15 bpp color
16 bpp color
Effective Gray Shade/Colors
on an Passive Panel
4-Bit Wide Look-Up Table
2
4
16
256
GREEN
2
4
16
16
BLUE
2
4
16
256
2
4
16
256
2 gray shades
4 gray shades
16 gray shades
16 gray shades
16 gray shades
16 gray shades
2 colors
4 colors
16 colors
256 colors
4096 colors*
4096 colors*
* On an active matrix panel the effective colors are determined by the interface width. (i.e. 9-bit=512, 12-bit=4096, 18bit=64K colors) Passive panels are limited to 12-bits through the Frame Rate Modulator.
= Indicates the Look-Up Table is not used for that display mode
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 17
Color Modes
In color display modes, depending on the color depth, 2 through 256 index entries are used. The
selection of which entries are used is automatic.
1 bpp color
When the SED1355 is configured for 1 bpp color mode, the LUT is limited to the first two entries.
The two LUT entries can be any two RGB values but are typically set to black-and-white.
Each byte in the display buffer contains 8 bits, each pertaining to adjacent pixels. A bit value of ’0’
results in the LUT 0 index value being displayed. A bit value of ’1’ results in the LUT 1 index value
being displayed.
The following table shows the recommended values for obtaining a black-and-white mode while in
1 bpp on a color panel.
Table 4-2: Recommended LUT Values for 1 Bpp Color Mode
Index
00
01
02
...
FF
Red
00
F0
00
00
00
Green
00
F0
00
00
00
Blue
00
F0
00
00
00
= Indicates unused entries in the LUT
2 bpp color
When the SED1355 is configured for 2 bpp color mode only the first 4 entries of the LUT are used.
These four entries can be set to any desired values.
Each byte in the display buffer contains 4 adjacent pixels. Each pair of bits in the byte are used as
an index into the LUT. The following table shows example values for 2 bpp color mode.
Table 4-3: Example LUT Values for 2 Bpp Color Mode
Index
00
01
02
03
04
...
FF
Red
00
70
A0
F0
00
00
00
Green
00
70
A0
F0
00
00
00
Blue
00
70
A0
F0
00
00
00
= Indicates unused entries in the LUT
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 18
Epson Research and Development
Vancouver Design Center
4 bpp color
When the SED1355 is configured for 4 bpp color mode the first 16 entries in the LUT are used.
Each byte in the display buffer contains two adjacent pixels. The upper and lower nibbles of the byte
are used as indices into the LUT.
The following table shows LUT values that will simulate those of a VGA operating in 16 color
mode.
Table 4-4: Suggested LUT Values to Simulate VGA Default 16 Color Palette
Index
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
10
...
FF
Red
00
00
00
00
0A
0A
0A
0A
00
00
00
00
0F
0F
0F
0F
00
00
00
Green
00
00
0A
0A
00
00
0A
0A
00
00
0F
0F
00
00
0F
0F
00
00
00
Blue
00
0A
00
0A
00
0A
00
0A
00
0F
00
0F
00
0F
00
0F
00
00
00
= Indicates unused entries in the LUT
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 19
8 bpp color
When the SED1355 is configured for 8 bpp color mode all 256 entries in the LUT are used. Each
byte in display buffer corresponds to one pixel and is used as an index value into the LUT.
The SED1355 LUT has four bits (16 intensities) of intensity control per primary color while a
standard VGA RAMDAC has six bits (64 intensities). This four to one difference has to be
considered when attempting to match colors between a VGA RAMDAC and the SED1355 LUT.
(i.e. VGA levels 0 - 3 map to LUT level 0, VGA levels 4 - 7 map to LUT level 1...). Additionally,
the significant bits of the color tables are located at different offsets within their respective bytes.
After calculating the equivalent intensity value the result must be shifted into the correct bit
positions.
The following table shows LUT values that will approximate the VGA default color palette.
Table 4-5: Suggested LUT Values to Simulate VGA Default 256 Color Palette
Index
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
10
11
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1E
1F
R
00
00
00
00
A0
A0
A0
A0
50
50
50
50
F0
F0
F0
F0
00
10
20
20
30
40
50
60
70
80
90
A0
B0
C0
E0
F0
G
00
00
A0
A0
00
00
50
A0
50
50
F0
F0
50
50
F0
F0
00
10
20
20
30
40
50
60
70
80
90
A0
B0
C0
E0
F0
B
00
A0
00
A0
00
A0
00
A0
50
F0
50
F0
50
F0
50
F0
00
10
20
20
30
40
50
60
70
80
90
A0
B0
C0
E0
F0
Programming Notes and Examples
Issue Date: 99/04/27
Index
40
41
42
43
44
45
46
47
48
49
4A
4B
4C
4D
4E
4F
50
51
52
53
54
55
56
57
58
59
5A
5B
5C
5D
5E
5F
R
F0
F0
F0
F0
F0
D0
B0
90
70
70
70
70
70
70
70
70
B0
C0
D0
E0
F0
F0
F0
F0
F0
F0
F0
F0
F0
E0
D0
C0
G
70
90
B0
D0
F0
F0
F0
F0
F0
F0
F0
F0
F0
D0
B0
90
B0
B0
B0
B0
B0
B0
B0
B0
B0
C0
D0
E0
F0
F0
F0
F0
B
70
70
70
70
70
70
70
70
70
90
B0
D0
F0
F0
F0
F0
F0
F0
F0
F0
F0
E0
D0
C0
B0
B0
B0
B0
B0
B0
B0
B0
Index
80
81
82
83
84
85
86
87
88
89
8A
8B
8C
8D
8E
8F
90
91
92
93
94
95
96
97
98
99
9A
9B
9C
9D
9E
9F
R
30
40
50
60
70
70
70
70
70
70
70
70
70
60
50
40
30
30
30
30
30
30
30
30
50
50
60
60
70
70
70
70
G
30
30
30
30
30
30
30
30
30
40
50
60
70
70
70
70
70
70
70
70
70
60
50
40
50
50
50
50
50
50
50
50
B
70
70
70
70
70
60
50
40
30
30
30
30
30
30
30
30
30
40
50
60
70
70
70
70
70
70
70
70
70
60
60
50
Index
C0
C1
C2
C3
C4
C5
C6
C7
C8
C9
CA
CB
CC
CD
CE
CF
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
DA
DB
DC
DD
DE
DF
R
00
00
00
00
00
00
00
00
20
20
30
30
40
40
40
40
40
40
40
40
40
30
30
20
20
20
20
20
20
20
20
20
G
40
40
40
40
40
30
20
10
20
20
20
20
20
20
20
20
20
20
30
30
40
40
40
40
40
40
40
40
40
30
30
20
B
00
10
20
30
40
40
40
40
40
40
40
40
40
30
30
20
20
20
20
20
20
20
20
20
20
20
30
30
40
40
40
40
SED1355
X23A-G-003-05
Page 20
Epson Research and Development
Vancouver Design Center
Table 4-5: Suggested LUT Values to Simulate VGA Default 256 Color Palette (Continued)
Index
20
21
22
23
24
25
26
27
28
29
2A
2B
2C
2D
2E
2F
30
31
32
33
34
35
36
37
38
39
3A
3B
3C
3D
3E
3F
R
00
40
70
B0
F0
F0
F0
F0
F0
F0
F0
F0
F0
B0
70
40
00
00
00
00
00
00
00
00
70
90
B0
D0
F0
F0
F0
F0
G
00
00
00
00
00
00
00
00
00
40
70
B0
F0
F0
F0
F0
F0
F0
F0
F0
F0
B0
70
40
70
70
70
70
70
70
70
70
B
F0
F0
F0
F0
F0
B0
70
40
00
00
00
00
00
00
00
00
00
40
70
B0
F0
F0
F0
F0
F0
F0
F0
F0
F0
D0
B0
90
Index
60
61
62
63
64
65
66
67
68
69
6A
6B
6C
6D
6E
6F
70
71
72
73
74
75
76
77
78
79
7A
7B
7C
7D
7E
7F
R
B0
B0
B0
B0
B0
B0
B0
B0
00
10
30
50
70
70
70
70
70
70
70
70
70
50
30
10
00
00
00
00
00
00
00
00
G
F0
F0
F0
F0
F0
E0
D0
C0
00
00
00
00
00
00
00
00
00
10
30
50
70
70
70
70
70
70
70
70
70
50
30
10
B
B0
C0
D0
E0
F0
F0
F0
F0
70
70
70
70
70
50
30
10
00
00
00
00
00
00
00
00
00
10
30
50
70
70
70
70
Index
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
AA
AB
AC
AD
AE
AF
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
BA
BB
BC
BD
BE
BF
R
70
70
70
70
70
60
60
50
50
50
50
50
50
50
50
50
00
10
20
30
40
40
40
40
40
40
40
40
40
30
20
10
G
50
50
60
60
70
70
70
70
70
70
70
70
70
60
60
50
00
00
00
00
00
00
00
00
00
10
20
30
40
40
40
40
B
50
50
50
50
50
50
50
50
50
50
60
60
70
70
70
70
40
40
40
40
40
30
20
10
00
00
00
00
00
00
00
00
Index
E0
E1
E2
E3
E4
E5
E6
E7
E8
E9
EA
EB
EC
ED
EE
EF
F0
F1
F2
F3
F4
F5
F6
F7
F8
F9
FA
FB
FC
FD
FE
FF
R
20
30
30
30
40
40
40
40
40
40
40
40
40
30
30
30
20
20
20
20
20
20
20
20
00
00
00
00
00
00
00
00
G
20
20
20
20
20
20
20
20
20
30
30
30
40
40
40
40
40
40
40
40
40
30
30
30
00
00
00
00
00
00
00
00
B
40
40
40
40
40
30
30
30
20
20
20
20
20
20
20
20
20
30
30
30
40
40
40
40
00
00
00
00
00
00
00
00
15 bpp color
The Look-Up Table is bypassed at this color depth, hence programming the LUT is not necessary.
16 bpp color
The Look-Up Table is bypassed at this color depth, hence programming the LUT is not necessary.
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 21
Gray Shade Modes
This discussion of gray shade/monochrome modes only applies to the panel interface. Monochrome
mode is selected when register [01] bit 2 = 0. In this mode the output value to the panel is derived
solely from the green component of the LUT. The CRT image will continue to be formed from all
three (RGB) Look-Up Table components.
Note
In order to match the colors on a CRT with the colors on a monochrome panel it is important to
ensure that the red and blue components of the Look-Up Table be set to the same intensity as the
green component.
1 bpp gray shade
In 1 bpp gray shade mode only the first two entries of the green LUT are used. All other LUT entries
are unused.
Table 4-6: Recommended LUT Values for 1 Bpp Gray Shade
Address
00
01
02
...
FF
Red
00
F0
00
00
00
Green
00
F0
00
00
00
Blue
00
F0
00
00
00
= Required to match CRT to panel
= Unused entries
2 bpp gray shade
In 2 bpp gray shade mode the first four green elements are used to provide values to the panel. The
remaining indices are unused.
Table 4-7: Suggested Values for 2 Bpp Gray Shade
Index
0
1
2
3
4
...
FF
Red
00
50
A0
F0
00
00
00
Green
00
50
A0
F0
00
00
00
Blue
00
50
A0
F0
00
00
00
= Required to match CRT to panel
= Unused entries
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 22
Epson Research and Development
Vancouver Design Center
4 bpp gray shade
The 4 bpp gray shade mode uses the first 16 LUT elements. The remaining indices of the LUT are
unused.
Table 4-8: Suggested LUT Values for 4 Bpp Gray Shade
Index
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
10
...
FF
Red
00
10
20
30
40
50
60
70
80
90
A0
B0
C0
D0
E0
F0
00
00
00
Green
00
10
20
30
40
50
60
70
80
90
A0
B0
C0
D0
E0
F0
00
00
00
Blue
00
10
20
30
40
50
60
70
80
90
A0
B0
C0
D0
E
F0
00
00
00
Required to match CRT to panel
Unused entries
8 bpp gray shade
When 8 bpp gray shade mode is selected the gray shade intensity is determined by the green LUT
value. The green portion of the LUT has 16 possible intensities. There is no color advantage to
selecting 8 bpp mode over 4 bpp mode; however, hardware rotate can be only used in 8 and 16 bpp
modes.
15 bpp gray shade
The Look-Up Table is bypassed at this color depth, hence programming the LUT is not necessary.
As with 8 bpp there are limitations to the colors which can be displayed. In this mode the four most
significant bits of green are used to set the absolute intensity of the image. Four bits of green resolves
to 16 colors. Now however, each pixel requires two bytes.
16 bpp gray
The Look-Up Table is bypassed at this color depth, hence programming the LUT is not necessary.
As with 8 bpp there are limitations to the colors which can be displayed. In this mode the four most
significant bits of green are used to set the absolute intensity of the image. Four bits of green resolves
to 16 colors. Now however, each pixel requires two bytes.
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 23
5 Advanced Techniques
This section presents information on the following:
• virtual display
• panning and scrolling
• split screen display
5.1 Virtual Display
Virtual display refers to the situation where the image to be viewed is larger than the physical
display. This can be in the horizontal, the vertical or both dimensions. To view the image, the display
is used as a window (or viewport) into the display buffer. At any given time only a portion of the
image is visible. Panning and scrolling are used to view the full image.
The Memory Address Offset registers are used to determine the number of horizontal pixels in the
virtual image. The offset registers can be set for a maximum of 211 or 2048 words. In 1 bpp display
modes these 2048 words cover 16,384 pixels. At 16 bpp 2048 words cover 1024 pixels.
The maximum vertical size of the virtual image is the result of a number of variables. In its simplest,
the number of lines is the total display buffer divided by the number of bytes per horizontal line. The
number of bytes per line is the number of words in the offset register multiplied by two. At maximum
horizontal size, the greatest number of lines that can be displayed is 1024. Reducing the horizontal
size makes memory available to increase the virtual vertical size.
In addition to the calculated limit the virtual vertical size is limited by the size and location of the
half frame buffer and the ink/cursor if present.
Seldom are the maximum sizes used. Figure 5-1: “Viewport Inside a Virtual Display,” depicts a
more typical use of a virtual display. The display panel is 320x240 pixels, an image of 640x480
pixels can be viewed by navigating a 320x240 pixel viewport around the image using panning and
scrolling.
320x240
Viewport
640x480
“Virtual” Display
Figure 5-1: Viewport Inside a Virtual Display
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 24
Epson Research and Development
Vancouver Design Center
5.1.1 Registers
REG[16h] Memory Address Offset Register 0
Memory
Address
Offset
Bit 7
Memory
Address
Offset
Bit 6
Memory
Address
Offset
Bit 5
Memory
Address
Offset
Bit 4
Memory
Address
Offset
Bit 3
Memory
Address
Offset
Bit 2
Memory
Address
Offset
Bit 1
Memory
Address
Offset
Bit 0
n/a
Memory
Address
Offset
Bit 10
Memory
Address
Offset
Bit 9
Memory
Address
Offset
Bit 8
REG[17h] Memory Address Offset Register 1
n/a
n/a
n/a
n/a
Figure 5-2: Memory Address Offset Registers
Registers [16h] and [17h] form an 11-bit value called the memory address offset. This offset is the
number of words from the beginning of one line of the display to the beginning of the next line of
the display.
Note that this value does not necessarily represent the number of words to be shown on the display.
The display width is set in the Horizontal Display Width register. If the offset is set to the same as
the display width then there is no virtual width.
To maintain a constant virtual width as color depth changes, the memory address offset must also
change. At 1 bpp each word contains 16 pixels, at 16 bpp each word contains one pixel. The formula
to determine the value for these registers is:
offset = pixels_per_line / pixels_per_word
5.1.2 Examples
Example 1: Determine the offset value required for 800 pixels at a color depth of 8 bpp.
At 8 bpp each byte contains one pixel, therefore each word contains two pixels.
pixels_per_word = 16 / bpp = 16 / 8 = 2
Using the above formula.
offset = pixels_per_line / pixels_per_word = 800 / 2 = 400 = 190h words
Register [17h] would be set to 01h and register [16h] would be set to 90h.
Example 2: Program the Memory Address Offset Registers to support a 16 color (4 bpp)
640x480 virtual display on a 320x240 LCD panel.
To create a virtual display the offset registers must be programmed to the horizontal size of the larger
“virtual” image. After determining the amount of memory used by each line, do a calculation to see
if there is enough memory to support the desired number of lines.
SED1355
X23A-G-003-05
1.
Initialize the SED1355 registers for a 320x240 panel. (See Introduction on page 7).
2.
Determine the offset register value.
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 25
pixels_per_word = 16 / bpp = 16 / 4 = 4
offset = pixels_per_line / pixels_per_word = 640 / 4 = 160 words = 0A0h words
Register [17h] will be written with 00h and register [16h] will be written with A0h.
3.
Check that we have enough memory for the required virtual height.
Each line uses 160 words and we need 480 lines for a total of (160*480) 76,800 words. This
display could be done on a system with the minimum supported memory size of 512 K bytes.
It is safe to continue with these values.
5.2 Panning and Scrolling
The terms panning and scrolling refer to the actions used to move the viewport about a virtual
display. Although the image is stored entirely in the display buffer, only a portion is actually visible
at any given time.
Panning describes the horizontal (side to side) motion of the viewport. When panning to the right the
image in the viewport appears to slide to the left. When panning to the left the image to appears to
slide to the right. Scrolling describes the vertical (up and down) motion of the viewport. Scrolling
down causes the image to appear to slide up and scrolling up causes the image to appear to slide
down.
Both panning and scrolling are performed by modifying the start address register. The start address
refers to the word offset in the display buffer where the image will start being displayed from. At
color depths less than 15 bpp a second register, the pixel pan register, is required for smooth pixel
level panning.
Internally, the SED1355 latches different signals at different times. Due to this internal sequence,
there is an order in which the start address and pixel pan registers should be accessed during scrolling
operations to provide the smoothest scrolling. Setting the registers in the wrong sequence or at the
wrong time will result in a “tearing” or jitter effect on the display.
The start address is latched at the beginning of each frame, therefore the start address can be set any
time during the display period. The pixel pan register values are latched at the beginning of each
display line and must be set during the vertical non-display period. The correct sequence for
programing these registers is:
1.
Wait until just after a vertical non-display period (read register [0Ah] and watch bit 7 for the
non-display status).
2.
Update the start address registers.
3.
Wait until the next vertical non-display period.
4.
Update the pixel paning register.
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 26
Epson Research and Development
Vancouver Design Center
5.2.1 Registers
REG[10h] Screen 1 Display Start Address 0
Start Addr
Bit 7
Start Addr
Bit 6
Start Addr
Bit 5
Start Addr
Bit 4
Start Addr
Bit 3
Start Addr
Bit 2
Start Addr
Bit 1
Start Addr
Bit 0
Start Addr
Bit 11
Start Addr
Bit 10
Start Addr
Bit 9
Start Addr
Bit 8
Start Addr
Bit 19
Start Addr
Bit 18
Start Addr
Bit 17
Start Addr
Bit 16
REG[11h] Screen 1 Display Start Address 1
Start Addr
Bit 15
Start Addr
Bit 14
Start Addr
Bit 13
Start Addr
Bit 12
REG[12h] Screen 1 Display Start Address 2
n/a
n/a
n/a
n/a
Figure 5-3: Screen 1 Start Address Registers
These three registers form the address of the word in the display buffer where screen 1 will start
displaying from. Changing these registers by one will cause a change of 0 to 16 pixels depending on
the current color depth. Refer to the following table to see the minimum number of pixels affected
by a change of one to these registers.
Table 5-1: Number of Pixels Panned Using Start Address
Color Depth (bpp)
1
2
4
8
15
16
Pixels per Word
16
8
4
2
1
1
Number of Pixels Panned
16
8
4
2
1
1
REG[18h] Pixel Panning Register
Screen 2
Pixel Pan
Bit 3
Screen 2
Pixel Pan
Bit 2
Screen 2
Pixel Pan
Bit 1
Screen 2
Pixel Pan
Bit 0
Screen 1
Pixel Pan
Bit 3
Screen 1
Pixel Pan
Bit 2
Screen 1
Pixel Pan
Bit 1
Screen 1
Pixel Pan
Bit 0
Figure 5-4: Pixel Panning Register
The pixel panning register offers finer control over pixel pans than is available with the Start Address
Registers. Using this register it is possible to pan the displayed image one pixel at a time. Depending
on the current color depth certain bits of the pixel pan register are not used. The following table
shows this.
Table 5-2: Active Pixel Pan Bits
Color Depth (bpp)
1
2
4
8
15/16
SED1355
X23A-G-003-05
Pixel Pan bits used
bits [3:0]
bits [2:0]
bits [1:0]
bit 0
---
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 27
5.2.2 Examples
For the examples in this section assume that the display system has been set up to view a 640x480
pixel image in a 320x240 viewport. Refer to Section 2, “Initialization” on page 8 and Section 5.1,
“Virtual Display” on page 23 for assistance with these settings.
Example 3: Panning - Right and Left
To pan to the right, increment the pixel pan value. If the pixel pan value is equal to the current color
depth then set the pixel pan value to zero and increment the start address value. To pan to the left
decrement the pixel pan value. If the pixel pan value is less than zero set it to the color depth (bpp)
less one and decrement the start address.
Note
Scrolling operations are easier to follow if a value, call it pan_value, is used to track both the pixel pan and start address. The least significant bits of pan_value will represent the pixel pan value
and the more significant bits are the start address value.
The following pans to the right by one pixel in 4 bpp display mode.
1.
This is a pan to the right. Increment pan_value.
pan_value = pan_value + 1
2.
Mask off the values from pan_value for the pixel panning and start address register portions. In
this case, 4 bpp, the lower two bits are the pixel panning value and the upper bits are the start
address.
pixel_pan = pan_value AND 3
start_address = pan_value SHR 3
3.
(the fist two bits of the shift account for the pixel_pan
the last bit of the shift converts the start_address value
from bytes to words)
Write the pixel panning and start address values to their respective registers using the procedure outlined in the registers section.
Example 4: Scrolling - Up and Down
To scroll down, increase the value in the Screen 1 Display Start Address Register by the number of
words in one virtual scan line. To scroll up, decrease the value in the Screen 1 Display Start Address
Register by the number of words in one virtual scan line.
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 28
Epson Research and Development
Vancouver Design Center
Example 5: Scroll down one line for a 16 color 640x480 virtual image using a 320x240 single
panel LCD.
1.
To scroll down we need to know how many words each line takes up. At 16 colors (4 bpp)
each byte contains two pixels so each word contains 4 pixels.
offset_words = pixels_per_line / pixels_per_word = 640 / 4 = 160 = A0h
We now know how much to add to the start address to scroll down one line.
2.
Increment the start address by the number of words per virtual line.
start_address = start_address + words
3.
Separate the start address value into three bytes. Write the LSB to register [10h] and the MSB
to register [12h].
5.3 Split Screen
Occasionally the need arises to display two distinct images on the display. For example, we may
write a game where the main play area will rapidly update and we want a status display at the bottom
of the screen.
The Split Screen feature of the SED1355 allows a programmer to setup a display for such an application. The figure below illustrates setting a 320x240 panel to have Image 1 displaying from scan
line 0 to scan line 99 and image 2 displaying from scan line 100 to scan line 239. Although this
example picks specific values, image 1 and image 2 can be shown as varying portions of the screen
.
Scan Line 0
...
Scan Line 99
Scan Line 100
...
Image 1
Image 2
Scan Line 239
Screen 1 Display Line Count Register = 99 lines
Figure 5-5: 320x240 Single Panel For Split Screen
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 29
5.3.1 Registers
The other registers required for split screen operations, [10h] through [12h] (Screen 1 Display Start
Address) and [18h] (Pixel Panning Register), are described in Section 5.2.1 on page 26.
REG[0E] Screen 1 Line Compare Register 0
Line
Compare
Bit 7
Line
Compare
Bit 6
Line
Compare
Bit 5
Line
Compare
Bit 4
Line
Compare
Bit 3
Line
Compare
Bit 2
Line
Compare
Bit 1
Line
Compare
Bit 0
n/a
n/a
Line
Compare
Bit 9
Line
Compare
Bit 8
REG[0F] Screen 1 Line Compare Register 1
n/a
n/a
n/a
n/a
Figure 5-6: Screen 1 Line Compare
These two registers form a value known as the line compare. When the line compare value is equal
to or greater than the physical number of lines being displayed there is no visible effect on the
display. When the line compare value is less than the number of physically displayed lines, display
operation works like this:
1.
From the end of vertical non-display to the number of lines indicated by line compare the display data will be from the memory pointed to by the Screen 1 Display Start Address.
2.
After line compare lines have been displayed the display will begin showing data from Screen
2 Display Start Address memory.
REG[13h] Screen 2 Display Start Address Register 0
Start Addr
Bit 7
Start Addr
Bit 6
Start Addr
Bit 5
Start Addr
Bit 4
Start Addr
Bit 3
Start Addr
Bit 2
Start Addr
Bit 1
Start Addr
Bit 0
Start Addr
Bit 11
Start Addr
Bit 10
Start Addr
Bit 9
Start Addr
Bit 8
Start Addr
Bit 19
Start Addr
Bit 18
Start Addr
Bit 17
Start Addr
Bit 16
REG[14h] Screen 2 Display Start Address Register 1
Start Addr
Bit 15
Start Addr
Bit 14
Start Addr
Bit 13
Start Addr
Bit 12
REG[15h] Screen 2 Display Start Address Register 2
n/a
n/a
n/a
n/a
Figure 5-7: Screen 2 Display Start Address
These three registers form the twenty bit offset to the first word in the display buffer that will be
shown in the screen 2 portion of the display.
Screen 1 memory is always displayed first at the top of the screen followed by screen 2 memory.
The start address for the screen 2 image may be lower in memory than that of screen 1 (i.e. screen 2
could be coming from offset 0 in the display buffer while screen 1 was coming from an offset located
several thousand bytes into the display buffer). While not particularly useful, it is possible to set
screen 1 and screen 2 to the same address.
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 30
Epson Research and Development
Vancouver Design Center
5.3.2 Examples
Example 6: Display 380 scanlines of image 1 and 100 scanlines of image 2. Image 2 is located immediately after image 1 in the display buffer. Assume a 640x480 display
and a color depth of 1 bpp.
1.
The value for the line compare is not dependent on any other setting so we can set it immediately (380 = 17Ch).
Write the line compare registers [0Fh] with 01h and register [0Eh] with 7Ch.
2.
Screen 1 is coming from offset 0 in the display buffer. Although not necessary, ensure that the
screen 1 start address is set to zero.
Write 00h to registers [10h], [11h] and [12h].
3.
Calculate the size of the screen 1 image (so we know where the screen 2 image is located).
This calculation must be performed on the virtual size (offset register) of the display. Since a
virtual size was not specified assume the virtual size to be the same as the physical size.
offset = pixels_per_line / pixels_per_word = 640 / 16 = 40 words per line
screen1_size = offset * lines = 40 * 480 = 19,200 words = 4B00h words
4.
Set the screen 2 start address to the value we just calculated.
Write the screen 2 start address registers [15h], [14h] and [13h] with the values 00h, 4Bh and
00h respectively.
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 31
6 LCD Power Sequencing and Power Save Modes
6.1 Introduction to LCD Power Sequencing
LCD Power Sequencing allows the LCD power supply to discharge prior to shutting down the LCD
signals. Power sequencing is required to prevent long term damage to the panel and to avoid
unsightly “lines” on power-down and power-up.
The SED1355 performs automatic power sequencing when the LCD is enabled or disabled through
the LCD Enable bit in register [0Dh]. For most applications the internal power sequencing is the
appropriate choice.
There may be situations where the internal time delay is insufficient to discharge the LCD power
supply before the LCD signals are shut down. This section details the sequences to manually powerup and power-down the LCD interface.
Proper LCD power sequencing dictates that there must be a time delay between the time the LCD
power is disabled and the time the LCD signals are shut down. During power up the LCD signals
must be active prior to applying power to the LCD. This time interval varies depending on the power
supply design. The power supply on the SDU1355 Evaluation board requires 0.5 seconds to fully
discharge. Your power supply design may vary.
6.2 Registers
REG[0Dh] Display Mode Register
Hardware
Portrait Mode
Enable
Simultaneous Simultaneous
Display
Display
Option Select Option Select
Bit 1
Bit 0
Bit-Per-Pixel
Select Bit 2
Bit-Per-Pixel
Select Bit 1
Bit-Per-Pixel
Select Bit 0
CRT Enable
LCD Enable
LCD Enable normally performs all the required power sequencing. Upon setting LCD Enable to '0'
the system will begin a series of events which include turning off the LCD power supply, waiting
for the power supply to discharge and finally turning off the LCD signals.
REG[1Ah] Power Save Configuration Register
Power Save
Status
n/a
n/a
n/a
LCD Power
Disable
Suspend
Refresh
Select Bit 1
Suspend
Refresh
Select Bit 0
Software
Suspend
Mode Enable
LCD Power Disable would be used to manually sequence the events leading to an LCD power-down.
First the program would set LCD Power Disable to '1' to begin discharging the LCD power supply.
After waiting a pre-determined amount of time the software would Disable the LCD signals using
the LCD Enable bit in register [0Dh].
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 32
Epson Research and Development
Vancouver Design Center
6.3 LCD Enable/Disable
Power On/Enable Sequence
The following is the recommended sequence for manually powering-up an LCD panel. These steps
would be used if power supply timing requirements were larger than the timings built into the
SED1355 power enable sequence.
1.
Set REG[1Ah] bit 3 to 1. Ensure that LCD power is disabled.
2.
Set REG[0Dh] bit 0 to 1. Turn on the LCD outputs.
3.
Count ’x’ Vertical Non-Display Periods.
’x’ corresponds the power supply discharge time converted to the equivalent vertical non-display periods.
4.
Set REG[1Ah] bit 3 to 0. This enables LCD Power.
Power Off/Disable Sequence
The following is the recommended sequence for manually powering-down an LCD panel. These
steps would be used if power supply timing requirements were larger than the timings built into the
SED1355 power disable sequence.
SED1355
X23A-G-003-05
1.
Set REG[1Ah] bit 3 to 1 - disable LCD Power.
2.
Count ’x’ Vertical Non-Display Periods.
’x’ corresponds to the power supply discharge time converted to the equivalent vertical nondisplay periods.
3.
Set REG[0Dh] bit 0 to 0 - turn off the LCD outputs.
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 33
7 Hardware Cursor
7.1 Introduction
The SED1355 provides hardware support for a cursor or an ink layer. These features are mutually
exclusive and therefore only one or the other may be active at any given time.
A hardware cursor improves video throughput in graphical operating systems by off-loading much
of the work typically assigned to software. Take the actions which must be performed when the user
moves the mouse. On a system without hardware support, the operating system must restore the area
under the current cursor position then save the area under the new location and finally draw the
cursor shape. Contrast that with the hardware assisted system where the operating system must
simply update the cursor X and cursor Y position registers.
An ink layer is used to support stylus or pen input. Without an ink layer the operating system would
have to save an area (possibly all) of the display buffer where pen input was to occur. After the
system recognized the user entered characters, the display would have to be restored and the
characters redrawn in a system font. With an ink layer the stylus path is drawn in the ink layer, where
it overlays the displayed image. After character recognition takes place the display is updated with
the new characters and the ink layer is simply cleared. There is no need to save and restore display
data thus providing faster throughput.
The SED1355 hardware cursor/ink layer supports a 2 bpp (four color) overlay image. Two of the
available colors are transparent and invert. The remaining two colors are user definable.
7.2 Registers
There are a total of eleven registers dedicated to the operation of the hardware cursor/ink layer.
Many of the registers need only be set once. Others, such as the positional registers, will be updated
frequently.
REG[27h] Ink/Cursor Control Register
Ink/Cursor
Mode
bit 1
Ink/Cursor
Mode
bit 0
n/a
n/a
Cursor High
Threshold
bit 3
Cursor High
Threshold
bit 2
Cursor High
Threshold
bit 1
Cursor High
Threshold
bit 0
The Ink/Cursor mode bits determine if the hardware will function as a hardware cursor or as an ink
layer. See Table 7-1: for an explanation of these bits.
Table 7-1: Ink/Cursor Mode
bit 7
0
0
1
1
Register [27h]
bit 6
0
1
0
1
Operating
Mode
Inactive
Cursor
Ink
Reserved
When cursor mode is selected the cursor image is always 64x64 pixels. Selecting an ink layer will
result in a large enough area to completely cover the display.
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 34
Epson Research and Development
Vancouver Design Center
The cursor threshold bits are used to control the Ink/Cursor FIFO depth to sustain uninterrupted
display fetches.
REG[28h] Cursor X Position Register 0
Cursor X
Position
bit 7
Cursor X
Position
bit 6
Cursor X
Position
bit 5
Cursor X
Position
bit 4
Cursor X
Position
bit 3
Cursor X
Position
bit 2
Cursor X
Position
bit 1
Cursor X
Position
bit 0
n/a
n/a
n/a
Cursor X
Position
bit 9
Cursor X
Position
bit 8
REG[29h] Cursor X Position Register 1
Reserved
n/a
n/a
Registers [28h] and [29h] control the horizontal position of the hardware cursor. The value in this
register specifies the location of the left edge of the cursor. When ink mode is selected these registers
should be set to zero.
Cursor X Position bits 9-0 determine the horizontal location of the cursor. With 10 bits of resolution
the horizontal cursor range is 1024 pixels.
REG[2Ah] Cursor Y Position Register 0
Cursor Y
Position bit 7
Cursor Y
Position bit 6
Cursor Y
Position bit 5
Cursor Y
Position bit 4
Cursor Y
Position bit 3
Cursor Y
Position bit 2
Cursor Y
Position bit 1
Cursor Y
Position bit 0
n/a
n/a
n/a
Cursor Y
Position bit 9
Cursor Y
Position bit 8
REG[2Bh] Cursor Y Position Register 0
Reserved
n/a
n/a
Registers [2Ah] and [2Bh] control the vertical position of the hardware cursor. The value in this
register specifies the location of the left edge of the cursor. When ink mode is selected these registers
should be set to zero.
Cursor Y Position bits 9-0 determine the location of the cursor. With ten bits of resolution the
vertical cursor range is 1024 pixels.
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 35
REG[2Ch] Ink/Cursor Color 0 Register 0
Cursor Color
0 bit 7
Cursor Color
0 bit 6
Cursor Color
0 bit 5
Cursor Color
0 bit 4
Cursor Color
0 bit 3
Cursor Color
0 bit 2
Cursor Color
0 bit 1
Cursor Color
0 bit 0
Cursor Color
0 bit 12
Cursor Color
0 bit 11
Cursor Color
0 bit 10
Cursor Color
0 bit 9
Cursor Color
0 bit 8
Cursor Color
1 bit 4
Cursor Color
1 bit 3
Cursor Color
1 bit 2
Cursor Color
1 bit 1
Cursor Color
1 bit 0
Cursor Color
1 bit 12
Cursor Color
1 bit 11
Cursor Color
1 bit 10
Cursor Color
1 bit 9
Cursor Color
1 bit 8
REG[2Dh] Ink/Cursor Color 0 Register 1
Cursor Color
0 bit 15
Cursor Color
0 bit 14
Cursor Color
0 bit 13
REG[2Eh] Ink/Cursor Color 1 Register 0
Cursor Color
1 bit 7
Cursor Color
1 bit 6
Cursor Color
1 bit 5
REG[2Fh] Ink/Cursor Color 1 Register 1
Cursor Color
1 bit 15
Cursor Color
1 bit 14
Cursor Color
1 bit 13
Acting in pairs, Registers [2Ch], [2Dh] and registers [2Eh], [2Fh] are used to form the 16 bpp (5-65) RGB values for the two user defined colors.
REG[30h] Ink/Cursor Start Address Select Register
Ink/Cursor
Ink/Cursor
Ink/Cursor
Ink/Cursor
Ink/Cursor
Ink/Cursor
Ink/Cursor
Ink/Cursor
Start Address Start Address Start Address Start Address Start Address Start Address Start Address Start Address
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Register [30h] determines the location in the display buffer where the cursor/ink layer will be
located. Table 7-2: can be used to determine this location.
Note
Bit 7 is write only, when reading back the register this bit reads a ’0’.
Table 7-2: Cursor/Ink Start Address Encoding
Ink/Cursor Start Address Bits [7:0]
Start Address (Bytes)
0
Display Buffer Size - 1024
1 - FFh
Display Buffer Size - (n * 8192)
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 36
Epson Research and Development
Vancouver Design Center
7.3 Limitations
There are limitations for using the hardware cursor/ink layer which should be noted.
7.3.1 Updating Hardware Cursor Addresses
All hardware cursor addresses must be set during VNDP (vertical non-display period). Check the
VNDP status bit (REG[0Ah] bit 7) to determine if you are in VNDP, then update the cursor address
register.
7.3.2 Reg[29h] And Reg[2Bh]
Bit seven of registers [29h] and [2Bh] are write only, and must always be set to zero as setting these
bits to one, will cause undefined cursor behavior.
7.3.3 Reg [30h]
Bit 7 of register [30h] is write only, therefore programs cannot determine the current cursor/ink layer
start address by reading register [30h]. It is suggested that values written to this register be stored
elsewhere and used when the current state of this register is required.
7.3.4
No Top/Left Clipping on Hardware Cursor
The SED1355 does not clip the hardware cursor on the top or left edges of the display. For cursor
shapes where the hot spot is not the upper left corner of the image (the hourglass for instance), the
cursor image will have to be modified to clip the cursor shape.
7.4 Examples
See Section 12, “Sample Code” for hardware cursor programming examples.
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 37
8 Hardware Rotation
8.1 Introduction To Hardware Rotation
Most computer displays operate in landscape mode. In landscape mode the display is wider than it
is high. For instance, a standard display size is 640x480 where the width is 640 pixels and the height
is 480 pixels.
Portrait mode rotates the display image clockwise ninety degrees, resulting in a display that is taller
than it is wide. Placing the 640x480 display in portrait mode will yield a display that is now 480
pixels wide and 640 pixels high.
8.2 SED1355 Hardware Rotation
The SED1355 provides hardware support for portrait mode output in 16 and 8 bpp modes.
The switch to portrait mode carries several conditions:
• The (virtual) display offset must be set to 1024 pixels.
• The display start address is calculated differently in portrait mode.
• Calculations that would result in panning in portrait mode result in scrolling in portrait mode and
vice-versa.
8.3 Registers
This section will detail each of the registers used to setup portrait mode operations on the SED1355.
The functionality of most of these registers has been covered in previous sections but is included
here to make this section complete.
The first step toward setting up portrait mode operation is to set the Hardware Portrait Mode Enable
bit to 1 (bit 7 of register [0Dh]).
REG[0Dh] Display Mode Register
Hardware
Portrait Mode
Enable
Simultaneous Simultaneous
Display
Display
Option Select Option Select
Bit 1
Bit 0
Programming Notes and Examples
Issue Date: 99/04/27
Bit-Per-Pixel
Select Bit 2
Bit-Per-Pixel
Select Bit 1
Bit-Per-Pixel
Select Bit 0
CRT Enable
LCD Enable
SED1355
X23A-G-003-05
Page 38
Epson Research and Development
Vancouver Design Center
Step two involves setting the screen 1 start address registers. Set to 1024 - width for 16 bpp modes
and to (1024 - width) / 2 for 8 bpp modes.
REG[10h] Screen 1 Display Start Address Register 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 11
Bit 10
Bit 9
Bit 8
Bit 19
Bit 18
Bit 17
Bit 16
REG[11h] Screen 1 Display Start Address Register 1
Bit 15
Bit 14
Bit 13
Bit 12
REG[12h] Screen 1 Display Start Address Register 2
n/a
n/a
n/a
n/a
Finally set the memory address offset registers to 1024 pixels. In 16 bpp mode load registers
[17h:16h] with 1024 and in 8 bpp mode load the registers with 512.
REG[16h] Memory Address Offset Register 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
n/a
n/a
Bit 10
Bit 9
Bit 8
REG[17h] Memory Address Offset Register 1
n/a
n/a
n/a
8.4 Limitations
The following limitations apply to Hardware Portrait Mode:
• Only 8 bpp and 16 bpp modes are supported - 1/2/4 bpp modes are not supported.
• Cursor and ink images are not rotated - software rotation must be used. Hardware Portrait Mode
must be turned off when the programmer is accessing the Cursor or the ink layer.
• Split screen images appear side-by-side, i.e. the portrait display is split vertically.
• Pixel panning works vertically.
Note
Drawing into the hardware cursor/ink layer with rotation enabled does not work without some
form of address manipulation. The easiest way to ensure correct cursor/ink images is to disable
Hardware Portrait Mode, draw in the cursor/ink memory, then re-enable hardware portrait mode.
While writing the cursor/ink memory each pixel must be transformed to its rotated position.
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 39
8.5 Examples
Example 7: Enable portrait mode for a 640x480 display at 8 bpp.
Before switching to portrait mode, display memory should be cleared to make the transition
smoother. Currently displayed images can not be simply rotated by hardware.
1.
The first step toward enabling portrait mode is to set the line offset to 1024 pixels. The Line
Offset register is the offset in words.
Write 200h to registers [17h]:[16h]. That is write 02h to register [17h] and 00h to register
[16h].
2.
The second step to enabling portrait mode is to set the Display 1 Start Address. The Display
Start Address registers form a pointer to a word, therefore the value to set the start.
Write C0h (192 or (1024 - 480)/2) to registers [10h], [11h] and [12h]. That is write Ch) to register [10h], 00h to register [11h] and 00h to register [12h].
3.
Enable display rotation by setting bit 7 of register [0Dh].
4.
The display is now configured for portrait mode use. Offset zero into display memory will
correspond to the upper left corner of the display. The only difference seen by the programmer
will be in acknowledging that the display offset is now 1024 pixels regardless of the physical
dimensions of the display surface.
Example 8: Pan the above portrait mode image to the right by 3 pixels then scroll it up by 4
pixels.
Pan the above portrait mode image to the right by 3 pixels then scroll it up by 4 pixels.
1.
With portrait mode enabled, the x and y control is rotated as well. Simply swap the x and y
co-ordinates and calculate as if the display were not rotated.
2.
Calculate the new start address and pixel pan values.
BytesPerScanline = 1024
PixelPan = newX & 01h;
StartAddr = (newY * BytesPerScanline / 2) + (newX & FFFEh) >> 1;
3.
Write the start address during the display enabled portion of the frame.
a) loop waiting for vertical non-display (b7 of register [0Ah] high).
do register = ReadRegister(0Ah)
while (80h != (register & 80h));
b) Loop waiting for the end of vertical non-display.
do register = ReadRegister(0Ah)
while (80h == (register & 80h));
c) Write the new start address.
SetRegister(REG_SCRN1_DISP_START_ADDR0, (BYTE) (dwAddr & FFh));
SetRegister(REG_SCRN1_DISP_START_ADDR1, (BYTE)((dwAddr >> 8) & FFh));
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 40
Epson Research and Development
Vancouver Design Center
SetRegister(REG_SCRN1_DISP_START_ADDR2, (BYTE)((dwAddr >> 16) & 0Fh));
do register = ReadRegister(0Ah)
while (80h == (register & 80h));
4.
Write the pixel pan value during the vertical non-display portion of the frame.
a) Coming from the above code wait for beginning of the non-display period.
do register = ReadRegister(0Ah)
while (80h != (register & 80h));
b) Write the new pixel panning value.
register = ReadRegister(18h);
register &= F0h;
register |= (PixelPan & 0Fh);
WriteRegister(18h, register);
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 41
9 CRT Considerations
9.1 Introduction
The SED1355 is capable of driving either an LCD panel, or a CRT display, or both simultaneously.
As display devices, panels tend to be lax in their horizontal and vertical timing requirements. CRT
displays often cannot vary by more than a very small percentage in their timing requirements before
the image is degraded.
Central to the following sections are VESA timings. Rather than fill this section of the guide with
pages full of register values it is recommended that the program 1355CFG.EXE be used to generate
a header file with the appropriate values. For more information on VESA timings contact the Video
Electronics Standards association on the world-wide web at www.vesa.org.
9.1.1 CRT Only
All CRT output should meet VESA timing specifications. The VESA specification details all the
parameters of the display and non-display times as well as the input clock required to meet the times.
Given a proper VESA input clock the configuration program 1355CFG.EXE will generate correct
VESA timings for 640x480 and for 800x600 modes.
9.1.2 Simultaneous Display
As mentioned in the previous section, CRT timings should always comply to the VESA specification. This requirement implies that during simultaneous operation the timing must still be VESA
compliant. For most panels, being run at CRT frequencies is not a problem. One side effect of
running with these usually slower timings will be a flicker on the panel.
One limitation of simultaneous display is that should a dual panel be the second display device the
half frame buffer must be disabled for correct operation.
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 42
Epson Research and Development
Vancouver Design Center
10 Identifying the SED1355
The SED1355 can only be identified once the host interface has been enabled. The steps to identify
the SED1355 are:
1.
SED1355
X23A-G-003-05
If using an ISA evaluation board in a PC follow steps a. and b.
a.
If a reset has occurred, confirm that 16-bit mode is enabled by writing to
address F80000h.
b.
If hardware suspend is enabled then disable the suspend by writing to
address F00000h.
2.
Enable the host interface by writing 00h to REG[1Bh].
3.
Read REG[00h].
4.
The production version of the SED1355 will return a value of 0Ch.
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 43
11 Hardware Abstraction Layer (HAL)
11.1 Introduction
The HAL is a processor independent programming library provided by Epson. The HAL was
developed to aid the implementation of internal test programs, and provides an easy, consistent
method of programming the SED1355 on different processor platforms. The HAL also allows for
easier porting of programs between SED135X products. Integral to the HAL is an information
structure (HAL_STRUCT) that contains configuration data on clocks, display modes, and default
register values. This structure combined with the utility 1355CFG.EXE allows quick customization
of a program for a new target display or environment.
Using the HAL keeps sample code simpler, although some programmers may find the HAL
functions to be limited in their scope, and may wish to program the SED1355 without using the
HAL.
11.2 Contents of the HAL_STRUCT
The HAL_STRUCT below is contained in the file “hal.h” and is required to use the HAL library.
typedef struct tagHalStruct
{
char szIdString[16];
WORD wDetectEndian;
WORD wSize;
WORD wDefaultMode;
BYTE Regs[MAX_DISP_MODE][MAX_REG + 1];
DWORD dwClkI;
/* Input Clock Frequency (in kHz) */
DWORD dwBusClk;
/* Bus Clock Frequency (in kHz) */
DWORD dwRegAddr;
/* Starting address of registers */
DWORD dwDispMem;
/* Starting address of display buffer memory */
WORD wPanelFrameRate; /* Desired panel frame rate */
WORD wCrtFrameRate;
/* Desired CRT rate */
WORD wMemSpeed;
/* Memory speed in ns */
WORD wTrc;
/* Ras to Cas Delay in ns */
WORD wTrp;
/* Ras Precharge time in ns */
WORD wTrac;
/* Ras Access Charge time in ns */
WORD wHostBusWidth;
/* Host CPU bus width in bits */
} HAL_STRUCT;
Within the Regs array in the structure are all the registers defined in the SED1355 Hardware
Functional Specification, document number X23A-A-001-xx. Using the 1355CFG.EXE utility you
can adjust the content of the registers contained in HAL_STRUCT to allow for different LCD panel
timing values and other default settings used by the HAL. In the simplest case, the program only
calls a few basic HAL functions and the contents of the HAL_STRUCT are used to setup the
SED1355 for operation (see Section 11.6.3, “Building a complete application for the target
example” on page 73).
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 44
Epson Research and Development
Vancouver Design Center
11.3 Using the HAL library
To utilize the HAL library, the programmer must include two “.h” files in their code. “Hal.h”
contains the HAL library function prototypes and structure definitions, and “appcfg.h” contains the
instance of the HAL_STRUCT that is defined in “Hal.h” and configured by 1355CFG.EXE.
Additionally, “hal_regs.h” can be included if the programmer intends to change the SED1355
registers directly using the seGetReg() or seSetReg() functions. For a more thorough example of
using the HAL see Section 12.1.1, “Sample code using the SED1355 HAL API” on page 77.
Note
Many of the HAL library functions have pointers as parameters. The programmer should be
aware that little validation of these pointers is performed, so it is up to the
programmer to ensure that they adhere to the interface and use valid pointers.
Programmers are recommended to use the highest warning levels of their compiler in
order to verify the parameter types.
11.4 API for 1355HAL
This section is a description of the HAL library Application Programmers Interface (API). Updates
and revisions to the HAL may include new functions not included in the following documentation.
Table 11-1: HAL Functions
Function
Description
Initialization:
seRegisterDevice
Registers the SED1355 parameters with the HAL, calls seInitHal if necessary.
seRegisterDevice MUST be the first HAL function called by an application.
seInitHal
Initialize the variables used by the HAL library (called by seRegisterDevice)
seSetInit
Programs the SED1355 for use with the default settings, calls seSetDisplayMode to do the
work, clears display memory. Note: either seSetInit or seSetDisplayMode MUST be called
after calling seRegisterDevice
seSetDisplayMode
Programs the SED1355 for use with the passed display mode and flags.
seGetId
Interpret the revision code register to determine chip id
General HAL Support:
seGetHalVersion
Return some Version information on the HAL library
seGetLibseVersion
Return version information on the LIBSE libraries (for non-x86 platforms)
seGetMemSize
Determines the amount of installed video memory
seGetLastUsableByte
Determine the offset of the last unreserved usable byte in the display buffer
seGetBytesPerScanline
Determine the number of bytes or memory consumed per scan line in current mode
seGetScreenSize
Determine the height and width of the display surface in pixels
seSelectBusWidth
Select the bus width on the ISA evaluation card
seGetHostBusWidth
Determine the bus width set in the HAL_STRUCT
seDisplayEnable
Turn the display(s) on/off
seDisplayFifo
Turn the FIFO on/off
seDelay
Use the frame rate timing to delay for required seconds (requires registers to be initialized)
seGetLinearDispAddr
Get a pointer to the logical start address of the display buffer
seSplitInit
Initialize split screen variables and setup start addresses
seSplitScreen
Set the size of either the top or bottom screen
Advanced HAL Functions:
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 45
Table 11-1: HAL Functions (Continued)
Function
Description
seVirtInit
Initialize virtual screen mode setting x and y sizes
seVirtMove
pan/scroll the virtual screen surface(s)
Register / Memory Access:
seSetReg
Write a Byte value to the specified SED1355 register
seSetWordReg
Write a Word value to the specified SED1355 register
seSetDwordReg
Write a Dword value to the specified SED1355 register
seGetReg
Read a Byte value from the specified SED1355 register
seGetWordReg
Read a Word value from the specified SED1355 register
seGetDwordReg
Read a Dword value from the specified SED1355 register
seWriteDisplayBytes
Write one or more bytes to the display buffer at the specified offset
seWriteDisplayWords
Write one or more words to the display buffer at the specified offset
seWriteDisplayDwords
Write one or more dwords to the display buffer at the specified offset
seReadDisplayByte
Read a byte from the display buffer from the specified offset
seReadDisplayWord
Read a word from the display buffer from the specified offset
seReadDisplayDword
Read a dword from the display buffer from the specified offset
seSetLut
Write to the Look-Up Table (LUT) entries starting at index 0
seGetLut
Read from the LUT starting at index 0
seSetLutEntry
Write one LUT entry (red, green, blue) at the specified index
seGetLutEntry
Read one LUT entry (red, green, blue) from the specified index
seSetBitsPerPixel
Set the color depth
seGetBitsPerPixel
Determine the current color depth
Color Manipulation:
Drawing:
seSetPixel
Draw a pixel at (x,y) in the specified color
seGetPixel
Read pixel’s color at (x,y)
seDrawLine
Draw a line from (x1,y1) to (x2,y2) in specified color
seDrawRect
Draw a rectangle from (x1,y1) to (x2,y2) in specified color
seDrawEllipse
Draw an ellipse centered at (xc,yc) of radius (xr,yr) in specified color
seDrawCircle
Draw a circle centered at (x,y) of radius r in specified color
seInitCursor
Initialize hardware cursor registers and variables for use; enable cursor
seCursorOn
Enable the cursor
seCursorOff
Disable the cursor
seGetCursorStartAddr
Determine the offset of the first byte of cursor memory in the display buffer (landscape
mode)
seMoveCursor
Move the cursor to the (x.y) position specified
Hardware Cursor:
seSetCursorColor
Sets the specified cursor color entry (0-1) to color
seSetCursorPixel
Draw one pixel into the cursor memory at (x,y) from top left corner of cursor
seDrawCursorLine
Draw a line into the cursor memory from (x1,y1) to (x2,y2) in specified color
seDrawCursorRect
Draw a rectangle into the cursor memory from (x1,y1) to (x2,y2) in specified color
seDrawCursorEllipse
Draw an ellipse into the cursor memory centered at (xc,yc) of radius (xr,yr) in specified color
seDrawCursorCircle
Draw a circle into the cursor memory centered at (x,y) of radius r in specified color
Ink Layer:
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 46
Epson Research and Development
Vancouver Design Center
Table 11-1: HAL Functions (Continued)
Function
Description
seInitInk
Initialize the Ink layer variables and registers; enable ink layer
seInkOn
Enables the Ink layer
seInkOff
Disables the Ink layer
seGetInkStartAddr
Determine the offset of the first byte of Ink layer memory in the display buffer (landscape
mode)
seSetInkColor
Sets the specified Ink layer color entry (0-1) to color
seSetInkPixel
Draw one pixel into the Ink layer memory at (x,y) from top left corner of cursor
seDrawInkLine
Draw a line into the Ink layer memory from (x1,y1) to (x2,y2) in specified color
seDrawInkRect
Draw a rectangle into the Ink layer memory from (x1,y1) to (x2,y2) in specified color
seDrawInkEllipse
Draw an ellipse into the Ink layer memory centered at (xc,yc) of radius (xr,yr) in specified
color
seDrawInkCircle
Draw a circle into the Ink layer memory centered at (x,y) of radius r in specified color
seSWSuspend
Control SED1355 SW suspend mode (enable/disable)
seHWSuspend
Control SED1355 HW suspend mode (enable/disable)
Power Save:
11.5 Initialization
The following section describes the HAL functions dealing with initialization of the SED1355.
Typically a programmer will only use the calls seRegisterDevice() and seSetInit().
int seRegisterDevice(const LPHAL_STRUC lpHalInfo, int * pDevice)
Description:
This function registers the SED1355 device parameters with the HAL library. The
device parameters include address range, register values, desired frame rate, etc.,
and are stored in the HAL_STRUCT structure pointed to by lpHalInfo. Additionally
this routine allocates system memory as address space for accessing registers and the
display buffer.
Parameters:
lpHalInfo
pDevice
Return Value: ERR_OK
Example:
- pointer to HAL_STRUCT information structure as defined in
appcfg.h (HalInfo)
- pointer to the integer to receive the device ID
- operation completed with no problems
seRegisterDevice( &HalInfo, &DeviceId);
Note
No SED1355 registers are changed by calling seRegisterDevice().
seRegisterDevice() MUST be called before any other HAL functions.
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 47
int seInitHal(void)
Description:
This function initializes the variables used by the HAL library. This function or
seRegisterDevice() must be called once when an application starts.
Normally programmers do not have to concern themselves with seInitHal(). On PC
platforms, seRegisterDevice() automatically calls seInitHal(). Consecutive calls to
seRegisterDevice() will not call seInitHal() again. On non-PC platforms the start-up
code, supplied by Epson, will call seInitHal().However, if support code for a new
operating platform is written the programmer must ensure that seInitHAL is called
prior to calling other HAL functions.
Parameters:
None
Return Value: ERR_OK
- operation completed with no problems
seSetInit(int DevID)
Description:
This routine sets the SED1355 registers for operation using the default settings.
Initialization of the SED1355 is a two step process consisting of initializing the HAL
(seInitHal) and initializing the SED1355 registers (seSetInit). Unlike the HAL the
registers do not necessarily require initialization at program startup and may be
initialized as needed (e.g. 1355PLAY.EXE).
Parameters:
DevID
- registered device ID (acquired in seRegisterDevice)
Return Value: ERR_OK - operation completed with no problems
ERR_FAILED- unable to complete operation. Occurs as a result an invalid register
in the HAL_STRUCT.
Note
This function calls seSetDisplayMode() and uses the configuration designated to be the default
by 1355CFG.EXE (wDefaultMode in HAL_STRUCT). The programmer could call
seSetDisplayMode() directly allowing the selection of any DisplayMode configuration along
with the options of clearing memory and blanking the display (DISP_FIFO_OFF).
Note
It is strongly recommended that the programmer call either seSetInit() or seSetDisplayMode()
after seRegisterDevice() before calling any other HAL functions. If not, the programmer must
manually disable hardware suspend and enable the host interface before accessing the registers
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 48
Epson Research and Development
Vancouver Design Center
int seSetDisplayMode(int DevID, int DisplayMode, int flags)
Description:
This routine sets the SED1355 registers according to the values contained in the
HAL_STRUCT register section.
Setting all the registers means that timing, display surface dimensions, and all other
aspects of chip operation are set with this call, including loading default values into
the color Look-Up Tables (LUTs).
Parameters:
DevID
- a valid registered device ID
DisplayMode- the HAL_STRUCT register set to use:
DISP_MODE_LCD,
DISP_MODE_CRT, or
DISP_MODE_SIMULTANEOUS
flags
- Can be set to one or more flags. Each flag added by using the
logical OR command. Do not add mutually exclusive flags.
Flags can be set to 0 to use defaults.
DONT_CLEAR_MEM (default) - do not clear memory
CLEAR_MEM - clear display buffer memory
DISP_FIFO_OFF - turn off display FIFO
(blank screen except for cursor or ink layer)
DISP_FIFO_ON (default) - turn on display FIFO
Return Value: ERR_OK - no problems encountered
ERR_FAILED - unable to complete operation. Occurs as a result of an invalid
register in the HAL_STRUCT.
See Also:
seDisplayFifo() - for enabling/disabling the FIFO.
Example:
seSetDisplayMode(DevID, DISP_MODE_LCD, CLEAR_MEM |
DISP_FIFO_OFF);
The above example will initialize for the LCD, and then clear display buffer memory
and blank the screen. The advantage to this approach is that afterwards the application can write to the display without showing the image until memory is
completely updated; the application would then call seDisplayFIFO(DevID, ON).
Note
See note from seSetInit().
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 49
11.5.1 General HAL Support
General HAL support covers the miscellaneous functions. There is usually no more than one or two
functions devoted to any particular aspect of SED1355 operation.
int seGetId(int DevID, int * pId)
Description:
Reads the SED1355 revision code register to determine the chip product and
revisions. The interpreted value is returned in pID.
Parameters:
DevID
pId
- registered device ID
- pointer to the int to receive the controller ID.
For the SED1355 the return values are currently:
ID_SED1355_REV0
ID_UNKNOWN
Other HAL libraries will return their respective controller IDs upon detection of
their controller.
Return Value: ERR_OK - operation completed with no problems
ERR_UNKNOWN_DEVICE - returned when pID returns ID_UNKNOWN.
(The HAL was unable to identify the display controller).
Note
seGetId() will disable hardware suspend on x86 platforms, and will enable the host interface
(register [1Bh]) on all platforms.
void seGetHalVersion(const char ** pVersion, const char ** pStatus,
const char **pStatusRevision)
Description:
Retrieves the HAL library version. The return pointers are all to ASCII strings. A
typical return would be: *pVersion == “1.01” (HAL version 1.01),*pStatus == “B”
(The 'B' is the beta designator), *pStatusRevision == “5”. The programmer need
only create pointers of const char type to pass as parameters (see Example below).
Parameters:
pVersion
- pointer to string of HAL version code
pStatus
- pointer to string of HAL status code (NULL is release)
pStatusRevision - pointer to string of HAL statusRevision
Return Value: None
Example:
const char *pVersion, *pStatus, *pStatusRevision;
seGetHalVersion( &pVersion, &pStatus, &pStatusRevision);
Note
This document was written for HAL version “1.04”, so any later versions should be a
superset of the functions described here.
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 50
Epson Research and Development
Vancouver Design Center
void seGetLibseVersion(int ** Version)
Description:
Retrieves the LIBSE library version for non-x86 platforms. The return pointer in
parameter Version is valid if the function return value is ERR_OK.
Parameters:
Version
- pointer to an int to store LIBSE version code
Return Value: ERR_OK - no problems encountered, version code is valid
ERR_FAILED - unable to complete operation. Probably on x86 platform where
LIBSE is not used.
int seGetMemSize(int DevID, DWORD * pSize)
Description:
This routine returns the amount of installed video memory. The memory size is
determined by reading the status of MD6 and MD7. *pSize will be set to either
80000h (512 KB) or 200000h (2 MB).
Parameters:
DevID
pSize
Return Value: ERR_OK
- registered device ID
- pointer to a DWORD to receive the size
- the operation completed successfully
Note
Memory size is only checked when calling seRegisterDevice(), seSetDisplayMode() or
seSetInit(). Afterwards, the memory size is stored and made available through seGetMemSize().
int seGetLastUsableByte(int DevID, DWORD * pLastByte)
Description:
Calculates the offset of the last byte in the display buffer which can be used by applications. Locations following LastByte are reserved for system use. Items such as the
half frame buffer, hardware cursor and ink layer will be located in memory from
GetLastUsableByte() + 1 to the end of memory.
It is assumed that the registers will have been initialized before calling seGetLastUsableByte(). Factors such as the half frame buffer and hardware cursor / ink layer
being enabled dynamically alter the amount of display buffer available to an application. Call seGetLastUsableByte() any time the true end of usable memory is
required.
Parameters:
DevID
- registered device ID
pLastByte - pointer to a DWORD to receive the offset to the last usable byte of
display buffer
Return Value: ERR_OK
SED1355
X23A-G-003-05
- operation completed with no problems
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 51
int seGetBytesPerScanline(int DevID, UINT * pBytes)
Description:
Determines the number of bytes per scan line of the current display mode. It is
assumed that the registers have already been correctly initialized before seGetBytesPerScanline() is called.
The number of bytes per scanline calculation includes the value in the offset register.
For rotated modes the return value will be either 1024 (8 bpp) or 2048 (15/16 bpp)
to reflect the 1024 x 1024 virtual area of the rotated memory.
Parameters:
DevID
pBytes
- registered device ID
- pointer to an integer which indicates the number of bytes per scan line
Return Value: ERR_OK - operation completed with no problems
ERR_FAILED- returned when this function is called for rotated display modes other
than 8, 15 or 16 bpp.
int seGetScreenSize(int DevID, UINT * Width, UINT * Height)
Description:
Gets the width and height in pixels of the display surface. The width and height are
derived by reading the horizontal and vertical size registers and calculating the
dimensions.
When the display is in portrait mode the dimensions will be swapped. (i.e. a 640x480
display in portrait mode will return a width and height of 480 and 640, respectively).
Parameters:
DevID
Width
Height
Return value: ERR_OK
- registered device ID
- unsigned integer to receive the display width
- unsigned integer to receive the display height
- the operation completed successfully
int seSelectBusWidth(int DevID, int Width)
Description:
Call this function to select the interface bus width on the ISA evaluation card.
Selectable widths are 8 bit and 16 bit.
Parameters:
DevID
Width
- registered device ID
- desired bus width. Must be 8 or 16.
Return Value: ERR_OK - the operation completed successfully
ERR_FAILED- the function was called on a non-ISA platform or width was not set
to 8 or 16.
Note
This call applies to the SED1355 ISA evaluation cards only.
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 52
Epson Research and Development
Vancouver Design Center
int seGetHostBusWidth(int DevID, int * Width)
Description:
This function retrieves the default (as set by 1355CFG.EXE) value for the host bus
interface width and returns it in Width.
Parameters:
DevID
Width
Return Value: ERR_OK
- registered device ID
- integer to hold the returned value of the host bus width
- the function completed successfully
int seDisplayEnable(int DevID, BYTE State)
Description:
This routine turns the display on or off by enabling or disabling the ENABLE bit of
the display device (PANEL, CRT, or SIMULTANEOUS). The Display Mode
setting (LCD, CRT or SIMULTANEOUS) determines which device(s) will be
affected, the default mode is stored in the HAL_STRUCT.
Parameters:
DevID
State
Return Value: ERR_OK
- registered device ID
- set to ON or OFF to respectively enable or disable the display
- the function completed successfully
int seDisplayFifo(int DevID, BYTE State)
Description:
This routine turns the display on or off by enabling or disabling the display FIFO
(the hardware cursor and ink layer are not affected).
To quickly blank the display, use seDisplayFifo() instead of seDisplayEnable().
Enabling and disabling the display FIFO is much faster, allowing full CPU
bandwidth to the display buffer.
Parameters:
DevID
State
Return Value: ERR_OK
- registered device ID
- set to ON or OFF respectively to enable or disable the display FIFO
- the function completed successfully
Note
Disabling the display FIFO will force all display data outputs to zero but horizontal and vertical
sync pulses and panel power supply are still active. As stated earlier, the hardware cursor and ink
layer are not affected by disabling the FIFO.
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 53
int seDelay(int DevID, DWORD Seconds)
Description:
This function will delay for the number of seconds given in Seconds before
returning to the caller.
This function was originally intended for non-PC platforms. Because information on
how to access the timers was not always immediately available, we use the frame
rate for timing calculations. The SED1355 registers must be initialized for this
function to work correctly.
The PC platform version of seDelay() calls the C timing functions and is therefore
independent of the register settings.
Parameters:
DevID
Seconds
- registered device ID
- time to delay in seconds
Return Value: ERR_OK - operation completed with no problems
ERR_FAILED- returned only on non-PC platforms when the SED1355 registers
have not been initialized.
int seGetLinearDispAddr(int device, DWORD * pDispLogicalAddr)
Description:
Determines the logical address of the start of the display buffer. This address may
be used in programs for direct control over the display buffer.
Parameter:
device
- registered device ID
pDispLogicalAddr - logical address is returned in this variable.
Return Value: ERR_OK
- operation completed with no problems.
11.5.2 Advanced HAL Functions
Advanced HAL functions include the functions to support split and virtual screen operations and are
the same features that were described in the section on advanced programming techniques.
int seSplitInit(int DevID, DWORD Scrn1Addr, DWORD Scrn2Addr)
Description:
This function prepares the system for split screen operation. In order for split screen
to function the starting address in the display buffer for the upper portion (screen 1),
and the lower portion (screen 2) must be specified. Screen 1 is always displayed
above screen 2 on the display regardless of the location of their respective starting
addresses.
Parameters:
DevID
- registered device ID
Scrn1Addr - offset in display buffer, in bytes, to the start of screen 1
Scrn2Addr - offset in display buffer, in bytes, to the start of screen 2
Return Value: ERR_OK
- operation completed with no problems
Note
It is assumed that the system has been properly initialized prior to calling seSplitInit().
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 54
Epson Research and Development
Vancouver Design Center
int seSplitScreen(int DevID, int WhichScreen, long VisibleScanlines)
Description:
Changes the relevant registers to adjust the split screen according to the number of
visible lines requested. WhichScreen determines which screen, screen 1 or screen 2,
to change.
The smallest screen 1 can be set to is one line. This is due to the way the register
values are used internally on the SED1355. Setting the line compare register to zero
results in one line of screen 1 being displayed followed by screen 2.
Parameters:
DevID
- registered device ID
WhichScreen- must be set to 1 or 2, or use the constants SCREEN1 or SCREEN2,
to identify which screen to base calculations on
VisibleScanlines- number of lines to show for the selected screen
Return Value: ERR_OK - operation completed with no problems
ERR_HAL_BAD_ARG- argument VisibleScanlines is negative or is greater than
vertical panel size or WhichScreen is not SCREEN1 or SCREEN 2.
Note
seSplitInit() must be called before calling seSplitScreen()
Changing the number of lines for one screen will also change the number of lines in the other
screen (e.g. increasing screen 1 lines by 5 will reduce screen 2 lines by 5).
int seVirtInit(int DevID, DWORD VirtX, DWORD * VirtY)
Description:
This function prepares the system for virtual screen operation. The programmer
passes the desired virtual width, in pixels, as VirtX. When the routine returns, VirtY
will contain the maximum number of lines that can be displayed at the requested
virtual width.
Parameter:
DevID
VirtX
VirtY
- registered device ID
- horizontal size of virtual display in pixels.
(Must be greater or equal to physical size of display)
- a return placeholder for the maximum number of lines available
given VirtX
Return Value: ERR_OK - operation completed with no problems
ERR_HAL_BAD_ARG - returned in three situations
1) the virtual width (VirtX) is greater than the largest attainable width
The maximum allowable xVirt is 7FFh * (16 / bpp))
2) the virtual width is less than the physical width, or
3) the maximum number of lines is less than the physical number of
lines
Note
The system must have been properly initialized prior to calling seVirtInit()
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 55
int seVirtMove(int DevID, int WhichScreen, DWORD x, DWORD y)
Description:
This routine pans and scrolls the display. In the case where split screen operation is
being used the WhichScreen argument specifies which screen to move. The x and y
parameters specify, in pixels, the starting location in the virtual image for the top left
corner of the applicable display.
Parameter:
DevID
- registered device ID
WhichScreen- must be set to 1 or 2, or use the constants SCREEN1 or SCREEN2,
to identify which screen to base calculations on
x
- new starting X position in pixels
y
- new starting Y position in pixels
Return Value: ERR_OK - operation completed with no problems
ERR_HAL_BAD_ARG- there are several reasons for this return value:
1) WhichScreen is not SCREEN1 or SCREEN2.
2) the y argument is greater than the last available line.
Note
seVirtInit() must be called before calling seVirtMove().
11.5.3 Register / Memory Access
The Register/Memory Access functions provide access to the SED1355 registers and display buffer
through the HAL.
int seSetReg(int DevID, int Index, BYTE Value)
Description:
Writes Value to the register specified by Index.
Parameters:
DevID
Index
Value
Return Value: ERR_OK
- registered device ID
- register index to set
- value to write to the register
- operation completed with no problems
int seSetWordReg(int DevID, int Index, WORD Value)
Description:
Writes WORD sized Value to the register specified by Index.
Parameters:
DevID
Index
Value
Return Value: ERR_OK
Programming Notes and Examples
Issue Date: 99/04/27
- registered device ID
- register index to set
- value to write to the register
- operation completed with no problems
SED1355
X23A-G-003-05
Page 56
Epson Research and Development
Vancouver Design Center
int seSetDwordReg(int DevID, int Index, DWORD Value)
Description:
Writes DWORD sized Value to the register specified by Index.
Parameters:
DevID
Index
Value
Return Value: ERR_OK
- registered device ID
- register index to set
- value to write to the register
- operation completed with no problems
int seGetReg(int DevID, int Index, BYTE * pValue)
Description:
Reads the value in the register specified by index.
Parameters:
DevID
Index
pValue
Return Value: ERR_OK
- registered device ID
- register index to read
- return value of the register
- operation completed with no problems
int seGetWordReg(int DevID, int Index, WORD * pValue)
Description:
Reads the WORD sized value in the register specified by index.
Parameters:
DevID
Index
pValue
Return Value: ERR_OK
- registered device ID
- register index to read
- return value of the register
- operation completed with no problems
int seGetDwordReg(int DevID, int Index, DWORD * pValue)
Description:
Reads the DWORD sized value in the register specified by index.
Parameters:
DevID
Index
pValue
Return Value: ERR_OK
SED1355
X23A-G-003-05
- registered device ID
- register index to read
- return value of the register
- operation completed with no problems
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 57
int seWriteDisplayBytes(int DevID, DWORD Offset, BYTE Value,
DWORD Count)
Description:
This routine writes one or more bytes to the display buffer at the offset specified by
Offset. If a count greater than one is specified all bytes will have the same value.
Parameters:
DevID
Offset
Value
Count
- registered device ID
- offset from start of the display buffer
- BYTE value to write
- number of bytes to write
Return Value: ERR_OK - operation completed with no problems
ERR_HAL_BAD_ARG - if the value for Offset is greater than the amount of
installed memory.
Note
If offset + count > memory size, this function will limit the writes to the end of memory.
int seWriteDisplayWords(int DevID, DWORD Offset, WORD Value,
DWORD Count)
Description:
Writes one or more words to the display buffer.
Parameters:
DevID
Offset
Value
Count
- registered device ID
- offset from start of the display buffer
- WORD value to write
- number of words to write
Return Value: ERR_OK - operation completed with no problems
ERR_HAL_BAD_ARG - if the value for Offset is greater than the amount of
installed memory.
Note
If offset + (count*2) > memory size, this function will limit the writes to the end of
memory.
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 58
Epson Research and Development
Vancouver Design Center
int seWriteDisplayDwords(int DevID, DWORD Offset, DWORD Value,
DWORD Count)
Description:
Writes one or more dwords to the display buffer.
Parameters:
DevID
Offset
Value
Count
- registered device ID
- offset from start of the display buffer
- DWORD value to write
- number of dwords to write
Return Value: ERR_OK - operation completed with no problems
ERR_HAL_BAD_ARG - if the value for Offset is greater than the amount of
installed memory.
Note
If offset + (count*4) > memory size, this function will limit the writes to the end of
memory.
int seReadDisplayByte(int DevID, DWORD Offset, BYTE *pByte)
Description:
Reads a byte from the display buffer at the specified offset and returns the value in
pByte.
Parameters:
DevID
Offset
pByte
- registered device ID
- offset, in bytes, from start of the display buffer
- return value of the display buffer location.
Return Value: ERR_OK - operation completed with no problems
ERR_HAL_BAD_ARG - if the value for Offset is greater than the amount of
installed memory.
int seReadDisplayWord(int DevID, DWORD Offset, WORD *pWord)
Description:
Reads a word from the display buffer at the specified offset and returns the value in
pWord.
Parameters:
DevID
Offset
pWord
- registered device ID
- offset, in bytes, from start of the display buffer
- return value of the display buffer location
Return Value: ERR_OK - operation completed with no problems.
ERR_HAL_BAD_ARG - if the value for Offset is greater than the amount of
installed memory.
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 59
int seReadDisplayDword(int DevID, DWORD Offset, DWORD
*pDword)
Description:
Reads a dword from the display buffer at the specified offset and returns the value
in pDword.
Parameters:
DevID
Offset
pDword
- registered device ID
- offset from start of the display buffer
- return value of the display buffer location
Return Value: ERR_OK - operation completed with no problems.
ERR_HAL_BAD_ARG - if the value for Offset is greater than the amount of
installed memory.
11.5.4 Color Manipulation
The functions in the Color Manipulation section deal with altering the color values in the Look-Up
Table directly through the accessor functions and indirectly through the color depth setting
functions.
int seSetLut(int DevID, BYTE *pLut, int Count)
Description:
This routine can write one or more LUT entries. The writes always start with LookUp Table index 0 and continue for Count entries.
A Look-Up Table entry consists of three bytes, one each for Red, Green, and Blue.
The color information is stored in the four most significant bits of each byte.
Parameters:
DevID
pLut
l
Count
Return Value: ERR_OK
- registered device ID
- pointer to an array of BYTE lut[16][3]
lut[x][0] == RED component
lut[x][1] == GREEN component
ut[x][2] == BLUE component
- the number of LUT entries to write.
- operation completed with no problems
int seGetLut(int DevID, BYTE *pLUT, int Count)
Description:
This routine reads one or more LUT entries and puts the result in the byte array
pointed to by pLUT.
A Look-Up Table entry consists of three bytes, one each for Red, Green, and Blue.
The color information is stored in the four most significant bits of each byte.
Parameters:
DevID
pLUT
Count
Return Value: ERR_OK
Programming Notes and Examples
Issue Date: 99/04/27
- registered device ID
- pointer to an array of BYTE lut[16][3]
pLUT must point to enough memory to hold Count x 3 bytes of data.
- the number of LUT elements to read.
- operation completed with no problems
SED1355
X23A-G-003-05
Page 60
Epson Research and Development
Vancouver Design Center
int seSetLutEntry(int DevID, int Index, BYTE *pEntry)
Description:
This routine writes one LUT entry. Unlike seSetLut, the LUT entry indicated by
Index can be any value from 0 to 255.
A Look-Up Table entry consists of three bytes, one each for Red, Green, and Blue.
The color information is stored in the four most significant bits of each byte.
Parameters:
DevID
Index
pEntry
Return Value: ERR_OK
- registered device ID
- index to LUT entry (0 to 255)
- pointer to an array of three bytes.
- operation completed with no problems
int seGetLutEntry(int DevID, int index, BYTE *pEntry)
Description:
This routine reads one LUT entry from any index.
Parameters:
DevID
Index
pEntry
Return Value: ERR_OK
- registered device ID
- index to LUT entry (0 to 255)
- pointer to an array of three bytes
- operation completed with no problems
int seSetBitsPerPixel(int DevID, UINT BitsPerPixel)
Description:
This routine sets the system color depth. Valid arguments for BitsPerPixel is are: 1,
2, 4, 8, 15, and 16.
After performing validity checks for the requested color depth the appropriate
registers are changed and the Look-Up Table is set its default value.
This call is similar to a mode set call on a standard VGA.
Parameter:
DevID
- registered device ID
BitsPerPixel - desired color depth in bits per pixel
Return Value: ERR_OK - operation completed with no problems
ERR_FAILED- possible causes for this error message include:
1) attempted to set other than 8 or 15/16 bpp in portrait mode
(portrait mode only supports 8 and 15/16 bpp)
2) factors such as input clock and memory speed will affect the ability
to set some color depths. If the requested color depth cannot be set this
call will fail
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 61
int seGetBitsPerPixel(int DevID, UINT * pBitsPerPixel)
Description:
This function reads the SED1355 registers to determine the current color depth and
returns the result in pBitsPerPixel.
Determines the color depth of current display mode.
Parameters:
DevID
- registered device ID
pBitsPerPixel - return value is the current color depth (1/2/4/8/15/16 bpp)
Return Value: ERR_OK
- operation completed with no problems
11.5.5 Drawing
The Drawing section covers HAL functions that deal with displaying pixels, lines and shapes.
int seSetPixel(int DevID, long x, long y, DWORD Color)
Description:
Draws a pixel at coordinates (x,y) in the requested color. This routine can be used
for any color depth.
Parameters:
DevID
x
y
Color
Return Value: ERR_OK
- Registered device ID
- horizontal coordinate of the pixel (starting from 0)
- vertical coordinate of the pixel (starting from 0)
- at 1, 2, 4, and 8 bpp Color is an index into the LUT.
At 15 and 16 bpp Color defines the color directly
(i.e. rrrrrggggggbbbbb for 16 bpp)
- operation completed with no problems.
int seGetPixel(int DevID, long x, long y, DWORD *pColor)
Description:
Reads the pixel color at coordinates (x,y). This routine can be used for any color
depth.
Parameters:
DevID
x
y
pColor
Return Value: ERR_OK
Programming Notes and Examples
Issue Date: 99/04/27
- Registered device ID
- horizontal coordinate of the pixel (starting from 0)
- vertical coordinate of the pixel (starting from 0)
- at 1, 2, 4, and 8 bpp pColor points to an index into the LUT.
At 15 and 16 bpp pColor points to the color directly
(i.e. rrrrrggggggbbbbb for 16 bpp)
- operation completed with no problems.
SED1355
X23A-G-003-05
Page 62
Epson Research and Development
Vancouver Design Center
int seDrawLine(int DevID, long x1, long y1, long x2, long y2, DWORD
Color)
Description:
This routine draws a line on the display from the endpoints defined by (x1,y1) to
(x2,y2) in the requested Color.
seDrawLine() supports horizontal, vertical, and diagonal lines.
Parameters:
DevID
(x1, y1)
(x2, y2)
Color
- registered device ID.
- top left corner of line
- bottom right corner of line (see note below)
- color of line
- For 1, 2, 4, and 8 bpp, ’Color’ refers to the pixel value which points to
the respective LUT/DAC entry.
- For 15 and 16 bpp, ’Color’ refers to the pixel value which stores the
red, green, and blue intensities within a WORD.
Return Value: ERR_OK - operation completed with no problems
ERR_INVALID_REG_DEVICE - device argument is not valid.
int seDrawRect(int DevID, long x1, long y1, long x2, long y2, DWORD
Color, BOOL SolidFill)
Description:
This routine draws and optionally fills a rectangular area of display buffer. The
upper right corner of the rectangle is defined by (x1,y1) and the lower right corner
is defined by (x2,y2). The color, defined by Color, applies to the border and to the
optional fill.
Parameters:
DevID
(x1, y1)
(x2, y2)
Color
SolidFill
Return Value: ERR_OK
SED1355
X23A-G-003-05
- registered device ID
- top left corner of the rectangle (in pixels)
- bottom right corner of the rectangle (in pixels)
- The color to draw the rectangle outline and solid fill
- At 1, 2, 4, and 8 bpp Color is an index into the Look-Up Table.
- At 15/16 bpp Color defines the color directly
(i.e. rrrrrggggggbbbbb for 16 bpp)
- Flag whether to fill the rectangle or simply draw the border.
- Set to 0 for no fill, set to non-0 to fill the inside of the rectangle
- operation completed with no problems.
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 63
int seDrawEllipse(int DevID, long xc, long yc, long xr, long yr, DWORD
Color, BOOL SolidFill)
Description:
This routine draws an ellipse with the center located at (xc,yc). The xr and yr parameters specify the x any y radii, in pixels, respectively. The ellipse will be drawn in
the color specified in ’Color’.
Parameters:
DevID
(xc, yc)
xr
yr
Color
SolidFill
Return Value: ERR_OK
- registered device ID
- The center location of the ellipse (in pixels)
- horizontal radius of the ellipse (in pixels)
- vertical radius of the ellipse (in pixels)
- The color to draw the ellipse
- At 1, 2, 4, and 8 bpp Color is an index into the Look-Up Table.
- At 15/16 bpp Color defines the color directly
(i.e. rrrrrggggggbbbbb for 16 bpp)
- unused
- operation completed with no problems.
Note
The ’SolidFill’ argument is currently unused and is included for future considerations.
int seDrawCircle(int DevID, long xc, long yc, long Radius, DWORD
Color, BOOL SolidFill)
Description:
This routine draws an circle with the center located at (xc,yc) and a radius of Radius.
The circle will be drawn in the color specified in Color.
Parameters:
DevID
xc, yc
Radius
Color
SolidFill
Return Value: ERR_OK
- registered device ID
- The center of the circle (in pixels)
- the circles radius (in pixels)
- The color to draw the ellipse
- At 1, 2, 4, and 8 bpp Color is an index into the Look-Up Table.
- At 15/16 bpp Color defines the color directly
(i.e. rrrrrggggggbbbbb for 16 bpp)
- unused
- operation completed with no problems.
Note
The SolidFill argument is currently unused and is included for future considerations.
11.5.6 Hardware Cursor
The routines in this section support hardware cursor functionality. Several of the calls look similar
to normal drawing calls (i.e. seDrawCursorLine()); however, these calls remove the programmer
from having to know the particulars of the cursor memory location, layout and whether portrait mode
is enabled. Note that hardware cursor and ink layers utilize some of the same registers and are
mutually exclusive.
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 64
Epson Research and Development
Vancouver Design Center
int seInitCursor(int DevID)
Description:
Prepares the hardware cursor for use. This consists of determining a location in
display buffer for the cursor, setting cursor memory to the transparent color and
enabling the cursor.
When this call returns the cursor is enabled, the cursor image is transparent and
ready to be drawn.
Parameters:
DevID
Return Value: ERR_OK
- a registered device ID
- operation completed with no problems
int seCursorOn(int DevID)
Description:
This function enables the cursor after it has been disabled through a call to seCursorOff(). After enabling the cursor will have the same shape and position as it did
prior to being disabled. The exception to the size and position occurs if the ink layer
was used while the cursor was disabled.
Parameters:
DevID
Return Value: ERR_OK
- a registered device ID
- operation completed with no problems
int seCursorOff(int DevID)
Description:
This routine disables the cursor. While disabled the cursor is invisible.
Parameters:
DevID
Return Value: ERR_OK
- a registered device ID
- operation completed with no problems
int seGetCursorStartAddr(int DevID, DWORD * Offset)
Description:
This function retrieves the offset to the first byte of hardware cursor memory.
Parameters:
DevID
Offset
Return Value: ERR_OK
- a registered device ID
- a DWORD to hold the return value.
- the operation completed with no problems.
int seMoveCursor(int DevID, long x, long y)
Description:
Moves the upper left corner of the hardware cursor to the pixel position (x,y).
Parameters:
DevID
(x, y)
Return Value: ERR_OK
SED1355
X23A-G-003-05
- a registered device ID
- the (x,y) position (in pixels) to move the cursor to
- operation completed with no problems
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 65
int seSetCursorColor(int DevID, int Index, DWORD Color)
Description:
Sets the color of the specified ink/cursor index to ’Color’. The user definable
hardware cursor colors are 16-bit 5-6-5 RGB colors.
The hardware cursor image is always 2 bpp or four colors. Two of the colors are
defined to be transparent and inverse. This leaves two colors which are user
definable.
Parameters:
DevID
Index
Color
- a registered device ID
- the cursor index to set. Valid values are 0 and 1
- a DWORD value which hold the requested color
Return Value: ERR_OK - operation completed with no problems
ERR_FAILED- returned if Index if other than 0 or 1
int seSetCursorPixel(int DevID, long x, long y, DWORD Color)
Description:
Draws a single pixel into the hardware cursor. The pixel will be of color ’Color’
located at (x,y) pixels relative to the top left of the hardware cursor.
The value of ’Color’ must be 0 to 3. Values 0 and 1 refer to the two user definable
colors. If ’Color’ is 2 then the pixel will be transparent and if the value is 3 the pixel
will be an inversion of the underlying screen color.
Parameters:
DevID
(x, y)
Color
Return Value: ERR_OK
- a registered device ID
- draw coordinates, in pixels, relative to the top left corner of the cursor
- a value of 0 to 3 to draw the pixel with
- operation completed with no problems
int seDrawCursorLine(int DevID, long x1, long y1, long x2, long y2,
DWORD Color)
Description:
Draws a line between the two endpoints, (x1,y1) and (x2,y2), in the hardware cursor
display buffer using color ’Color’.
The value of ’Color’ must be 0 to 3. Values 0 and 1 refer to the two user definable
colors. If ’Color’ is 2 then the pixel will be transparent and if the value is 3 the pixel
will be an inversion of the underlying screen color.
Parameters:
DevID
(x1,y1)
(x2,y2)
Color
Return Value: ERR_OK
Programming Notes and Examples
Issue Date: 99/04/27
- a registered device ID
- first line endpoint (in pixels)
- second line endpoint (in pixels)
- a value of 0 to 3 to draw the pixel with
- operation completed with no problems
SED1355
X23A-G-003-05
Page 66
Epson Research and Development
Vancouver Design Center
int seDrawCursorRect(int DevID, long x1, long y1, long x2, long y2,
DWORD Color, BOOL SolidFill)
Description:
This routine will draw a rectangle in hardware cursor memory. The upper left corner
of the rectangle is defined by the point (x1,y1) and the lower right is the point
(x2,y2). Both points are relative to the upper left corner of the cursor.
The value of ’Color’ must be 0 to 3. Values 0 and 1 refer to the two user definable
colors. If ’Color’ is 2 then the pixel will be transparent and if the value is 3 the pixel
result will be an inversion of the underlying screen color.
If ’SolidFill’ is specified the interior of the rectangle will be filled with ’Color’,
otherwise the rectangle is only outlined in ’Color’.
Parameters:
DevID
(x1,y1)
(x2,y2)
Color
SolidFill
Return Value: ERR_OK
- a registered device ID
- upper left corner of the rectangle (in pixels)
- lower right corner of the rectangle (in pixels)
- a 0 to 3 value to draw the rectangle with
- flag for filling the rectangle interior
- if equal to 0 then outline the rectangle;
if not equal to 0 then fill the rectangle with Color
- operation completed with no problems
int seDrawCursorEllipse(int DevID, long xc, long yc, long xr, long yr,
DWORD Color, BOOL SolidFill)
Description:
This routine draws an ellipse within the hardware cursor display buffer. The ellipse
will be centered on the point (xc,yc) and will have a horizontal radius of xr and a
vertical radius of yr.
The value of ’Color’ must be 0 to 3. Values 0 and 1 refer to the two user definable
colors. If ’Color’ is 2 then the pixel will be transparent and if the value is 3 the pixel
will be an inversion of the underlying screen color.
Currently seDrawCursorEllipse() does not support solid fill of the ellipse.
Parameters:
DevID
(xc, yc)
xr
yr
Color
SolidFill
Return Value: ERR_OK
SED1355
X23A-G-003-05
- a registered device ID
- center of the ellipse (in pixels)
- horizontal radius (in pixels)
- vertical radius (in pixels)
- 0 to 3 value to draw the pixels with
- flag to solid fill the ellipse (not currently used)
- operation completed with no problems
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 67
int seDrawCursorCircle(int DevID, long x, long y, long Radius,
DWORD Color, BOOL SolidFill)
Description:
This routine draws a circle in hardware cursor display buffer. The center of the circle
will be at (x,y) and the circle will have a radius of ’Radius’ pixels.
The value of ’Color’ must be 0 to 3. Values 0 and 1 refer to the two user definable
colors. If ’Color’ is 2 then the pixel will be transparent and if the value is 3 the pixel
will be an inversion of the underlying screen color.
Currently seDrawCursorCircle() does not support the solid fill option.
Parameters:
DevID
(x,y)
Radius
Color
SolidFill
Return Value: ERR_OK
- a registered device ID
- center of the circle (in pixels)
- radius of the circle (in pixels)
- 0 to 3 value to draw the circle with
- flag to solid fill the circle (currently not used)
- operation completed with no problems
11.5.7 Ink Layer
The functions in this section support the hardware ink layer. Overall these functions are nearly
identical to the hardware cursor routines. In fact the same SED1355 hardware is used for both
features which means that only the cursor or the ink layer can be active at any given time.The
difference between the hardware cursor and the ink layer is that in cursor mode the image is a
maximum of 64x64 pixels and can be moved around the display while in ink layer mode the image
is as large as the physical size of the display and is in a fixed position. Both the Ink layer and
Hardware cursor have the same number of colors and handle these colors identically.
int seInitInk(int DevID)
Description:
This routine prepares the ink layer for use. This consists of determining the start
address for the ink layer, setting the ink layer to the transparent color and enabling
the ink layer.
When this function returns the ink layer is enabled, transparent and ready to be
drawn on.
Parameters:
DevID
- a registered device ID
Return Value: ERR_OK - operation completed with no problems
ERR_FAILED- if the ink layer cannot be enabled due to timing constraints this
value will be returned.
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 68
Epson Research and Development
Vancouver Design Center
int seInkOn(int DevID)
Description:
Enables the ink layer after a call to seInkOff(). If the hardware cursor has not been
used between the time seInkOff() was called and this call then the contents of the ink
layer should be exactly as it was prior to the call to seInkOff().
Parameters:
DevID
Return Value: ERR_OK
- a registered device ID
- operation completed with no problems
int seInkOff(int DevID)
Description:
Disables the ink layer. When disabled the ink layer is not visible.
Parameters:
DevID
Return Value: ERR_OK
- a registered device ID
- operation completed with no problems
int seGetInkStartAddr(int DevID, DWORD * Offset)
Description:
This function retrieves the offset to the first byte of hardware ink layer memory.
Parameters:
DevID
Offset
Return Value: ERR_OK
- a registered device ID
- a DWORD to hold the return value.
- the operation completed with no problems.
int seSetInkColor(int DevID, int Index, DWORD Color)
Description:
Sets the color of the specified ink/cursor index to ’Color’. The user definable
hardware cursor colors are sixteen bit 5-6-5 RGB colors.
The hardware ink layer image is always 2 bpp or four colors. Two of the colors are
defined to be transparent and inverse. This leaves two colors which are user
definable.
Parameters:
DevID
Index
Color
- a registered device ID
- the index, 0 or 1, to write the color to
- a sixteen bit RRRRRGGGGGGBBBBB color to write to ’Index’
Return Value: ERR_OK - operation completed with no problems
ERR_FAILED- an index other than 0 or 1 was specified.
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 69
int seSetInkPixel(int DevID, long x, long y, DWORD Color)
Description:
Sets one pixel located at (x,y) to the value ’Color’. The point (x,y) is relative to the
upper left corner of the display.
The value of ’Color’ must be 0 to 3. Values 0 and 1 refer to the two user definable
colors. If ’Color’ is 2 then the pixel will be transparent and if the value is 3 the pixel
will be an inversion of the underlying screen color.
Parameters:
DevID
(x,y)
Color
Return Value: ERR_OK
- a registered device ID
- coordinates of the pixel to draw
- a 0 to 3 value to draw the pixel with
- operation completed with no problems
int seDrawInkLine(int DevID, long x1, long y1, long x2, long y2,
DWORD Color)
Description:
This routine draws a line in ’Color’ between the endpoints (x1,y1) and (x2,y2).
The value of ’Color’ must be 0 to 3. Values 0 and 1 refer to the two user definable
colors. If ’Color’ is 2 then the pixel will be transparent and if the value is 3 the pixel
will be an inversion of the underlying screen color.
Parameters:
DevID
(x1,y1)
(x2,y2)
Color
Return Value: ERR_OK
- a registered device ID
- first endpoint of the line (in pixels)
- second endpoint of the line (in pixels)
-a value from 0 to 3 to draw the line with
- operation completed with no problems
int seDrawInkRect(int DevID, long x1, long y1, long x2, long y2,
DWORD Color, BOOL SolidFill)
Description:
Draws a rectangle of color ’Color’ and optionally fills it. The upper left corner of the
rectangle is the point (x1,y1) and the lower right corner of the rectangle is the point
(x2,y2).
The value of ’Color’ must be 0 to 3. Values 0 and 1 refer to the two user definable
colors. If ’Color’ is 2 then the pixel will be transparent and if the value is 3 the pixel
will be an inversion of the underlying screen color.
Parameters:
DevID
(x1,y1)
(x2.y2)
Color
SolidFill
Return Value: ERR_OK
Programming Notes and Examples
Issue Date: 99/04/27
- a registered device ID
- upper left corner of the rectangle (in pixels)
- lower right corner of the rectangle (in pixels)
- a two bit value (0 to 3) to draw the rectangle with
- a flag to indicate that the interior should be filled
- operation completed with no problems
SED1355
X23A-G-003-05
Page 70
Epson Research and Development
Vancouver Design Center
int seDrawInkEllipse(int DevID, long xc, long yc, long xr, long yr,
DWORD Color, BOOL SolidFill)
Description:
This routine draws an ellipse with the center located at xc,yc. The xr and yr parameters specify the x and y radii, in pixels, respectively. The ellipse will be drawn in
the color specified by ’Color’.
The value of ’Color’ must be 0 to 3. Values 0 and 1 refer to the two user definable
colors. If ’Color’ is 2 then the pixel will be transparent and if the value is 3 the pixel
will be an inversion of the underlying screen color.
This solid fill option is not yet available for this function.
Parameters:
DevID
xc,yc
xr
yr
Color
SolidFill
Return Value: ERR_OK
- a registered device ID
- center point for the ellipse (in pixels)
- horizontal radius of the ellipse (in pixels)
- vertical radius of the ellipse (in pixels)
- a two bit value (0 to 3) to draw the rectangle with
- flag to enable filling the interior of the ellipse (currently not used)
- operation completed with no problems
int seDrawInkCircle(int DevID, long x, long y, long Radius, DWORD
Color, BOOL SolidFill)
Description:
This routine draws a circle in the ink layer display buffer. The center of the circle
will be at x,y and the circle will have a radius of ’Radius’ pixels.
The value of ’Color’ must be 0 to 3. Values 0 and 1 refer to the two user definable
colors. If ’Color’ is 2 then the pixel will be transparent and if the value is 3 the pixel
will be an inversion of the underlying screen color.
Currently seDrawCursorCircle() does not support the solid fill option.
Parameters:
DevID
x,y
Radius
Color
SolidFill
Return Value: ERR_OK
SED1355
X23A-G-003-05
- a registered device ID
- center of the circle (in pixels)
- circle radius (in pixels)
- a two bit (0 to 3) value to draw the circle with
- flag to fill the interior of the circle (currently not used)
- operation completed with no problems
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 71
11.5.8 Power Save
This section covers the HAL functions dealing with the Power Save features of the SED1355.
int seSWSuspend(int DevID, BOOL Suspend)
Description:
Causes the SED1355 to enter software suspend mode.
When software suspend mode is engaged the display is disabled and display buffer
is inaccessible. In this mode the registers and the LUT are accessible.
Parameters:
DevID
Suspend
Return Value: ERR_OK
- a registered device ID
- boolean flag to indicate which state to engage.
- enter suspend mode when non-zero and return to normal power
when equal to zero.
- operation completed with no problems
int seHWSuspend(int DevID, BOOL Suspend)
Description:
Causes the SED1355 to enter/leave hardware suspend mode. This option in only
supported on SED1355B0B ISA evaluation boards.
When hardware suspend mode is engaged the display is disabled and display buffer
is inaccessible and the registers and LUT are inaccessible.
Parameters:
DevID
Suspend
Return Value: ERR_OK
- a registered device ID
- boolean flag to indicate which state to engage.
- enter suspend mode when non-zero and return to normal power
when equal to zero.
- operation completed with no problems
11.6 Porting LIBSE to a new target platform
Building Epson applications like a simple HelloApp for a new target platform requires 3 things, the
HelloApp code, the 1355HAL library, and a some standard C functions (portable ones are encapsulated in our mini C library LIBSE).
HelloApp Source code
HelloApp
C Library Functions (LIBSE for embedded platforms)
1355HAL Library
Figure 11-1: Components needed to build 1355 HAL application
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 72
Epson Research and Development
Vancouver Design Center
For example, when building HELLOAPP.EXE for the x86 16-bit platform, you need the
HELLOAPP source files, the 1355HAL library and its include files, and some Standard C library
functions (which in this case would be supplied by the compiler as part of its run-time library). As
this is a DOS .EXE application, you do not need to supply start-up code that sets up the chip selects
or interrupts, etc... What if you wanted to build the application for an SH-3 target, one not running
DOS?
Before you can build that application to load onto the target, you need to build a C library for the
target that contains enough of the Standard C functions (like sprintf and strcpy) to let you build the
application. Epson supplies the LIBSE for this purpose, but your compiler may come with one
included. You also need to build the 1355HAL library for the target. This library is the graphics chip
dependent portion of the code. Finally, you need to build the final application, linked together with
the libraries described earlier. The following examples assume that you have a copy of the complete
source code for the SED1355 utilities, including the nmake makefiles, as well as a copy of the GNU
Compiler v2.7-96q3a for Hitachi SH3. These are available on the Epson Electronics America
Website at http://www.eea.epson.com.
11.6.1 Building the LIBSE library for SH3 target example
In the LIBSE files, there are three main types of files:
• C files that contain the library functions.
• assembler files that contain the target specific code.
• makefiles that describe the build process to construct the library.
The C files are generic to all platforms, although there are some customizations for targets in the
form of #ifdef LCEVBSH3 code (the ifdef used for the example SH3 target Low Cost Eval Board
SH3). The majority of this code remains constant whichever target you build for.
The assembler files contain some platform setup code (stacks, chip selects) and jumps into the main
entry point of the C code that is contained in the C file entry.c. For our example, the assembler file
is STARTSH3.S and it performs only some stack setup and a jump into the code at _mainEntry
(entry.c).
In the embedded targets, printf (in file rprintf.c), putchar (putchar.c) and getch (kb.c) resolve to serial
character input/output. For SH3, much of the detail of handling serial IO is hidden in the monitor of
the evaluation board, but in general the primitives are fairly straight forward, providing the ability
to get characters to/from the serial port.
For our target example, the nmake makefile is makesh3.mk. This makefile calls the Gnu compiler at
a specific location (TOOLDIR), enumerates the list of files that go into the target and builds a .a
library file as the output of the build process.
With nmake.exe in your path run:
nmake -fmakesh3.mk
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 73
11.6.2 Building the HAL library for the target example
Building the HAL for the target example is less complex because the code is written in C and
requires little platform specific adjustment. The nmake makefile for our example is
makesh3.mk.This makefile contains the rules for building sh3 objects, the files list for the library
and the library creation rules. The Gnu compiler tools are pointed to by TOOLDIR.
With nmake in your path run:
nmake -fmakesh3.mk
11.6.3 Building a complete application for the target example
The following source code is available on the Epson Electronics America Website at
http://www.eea.epson.com.
#include <stdio.h>
#include "Hal.h"
#include "Appcfg.h"
#include "Hal_regs.h"
int main(void);
#define RED16BPP
0xf800
#define GREEN16BPP 0x07e0
#define BLUE16BPP 0x001f
int main(void)
{
int DevId;
UINT height, width, Bpp;
const char *p1, *p2, *p3;
DWORD color_red, color_blue;
BYTE RedBlueLut[3][3] = {
{0, 0, 0}, /* Black */
{0xF0, 0, 0},/* Red */
{0, 0, 0xF0}/* Blue */
};
BOOL verbose = TRUE;
long x1, x2, y1, y2;
/*
** Call this to get hal.c linked into the image, and HalInfoArray
** which is defined in hal.c and used by other HAL pieces.
*/
seGetHalVersion( &p1, &p2, &p3 );
printf("1355 Hal version %s\n", p1);
/*
** Register the device with the HAL
** NOTE: HalInfo is an instance of HAL_STRUCT and is defined
** in Appcfg.h
*/
if (seRegisterDevice(&HalInfo, &DevId) != ERR_OK)
{
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 74
Epson Research and Development
Vancouver Design Center
printf("\r\nERROR: Unable to register device with HAL\r\n");
return -1;
}
/*
** Init the SED1355 with the defaults stored in the HAL_STRUCT
*/
if (seSetInit(DevId) != ERR_OK)
{
printf("\r\nERROR: Unable to initialize the SED1355\r\n");
return -1;
}
/*
** Determine the screen size
*/
if (seGetScreenSize(DevId, &width, &height) != ERR_OK)
{
printf("\r\nERROR: Unable to get screen size\r\n");
return -1;
}
/*
** Determine the Bpp mode, and set colors appropriately
** Note: if less than 15Bpp set the color Lookup Table (LUT)
** local color variables contain either index into LUT or RGB value
*/
seGetBitsPerPixel(DevId, &Bpp);
if (verbose)
printf("Bpp is %d\n", Bpp);
switch(Bpp)
{
case 1: /* Can’t really do red and blue here */
seSetLut(DevId, (BYTE *)&RedBlueLut[0][0], 3);
color_red = 1;
color_blue = 1;
break;
/* Set the LUT to values appropriate to Black, Red, and Blue */
case 2:
case 4:
case 8:
seSetLut(DevId, (BYTE *)&RedBlueLut[0][0], 3);
color_red = 1;
color_blue = 2;
break;
default: /* 15 or 16 bpp */
color_red = RED16BPP;
color_blue = BLUE16BPP;
break;
}
/*
** Draw a Blue line from top left hand corner to bottom right hand corner
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 75
*/
if (seDrawLine(DevId, 0,0, width-1, height-1, color_blue) != ERR_OK)
{
printf("\r\nERROR: Unable to draw line\r\n");
return -1;
}
/*
** Delay for 2 seconds and then draw a filled rectangle
*/
seDelay(DevId, (DWORD)2);
/*
** Centre the rectangle at 1/4 x,y and 3/4 x,y
*/
x1 = width/4;
x2 = width/2 + x1;
y1 = height/4;
y2 = height/2 + y1;
seDrawRect(DevId, x1, y1, x2, y2, color_red, TRUE);
/*
** Draw a box around the screen
*/
if ((seDrawLine(DevId, 0, 0, width-1, 0, color_blue) != ERR_OK)
|(seDrawLine(DevId, 0, height-1, width-1, height-1, color_blue) !=
ERR_OK)
|(seDrawLine(DevId, 0, 0, 0, height-1, color_blue) != ERR_OK)
|(seDrawLine(DevId, width-1, 0, width-1, height-1, color_blue) !=
ERR_OK))
{
printf("\r\nERROR: Unable to draw box\r\n");
return -1;
}
/*
** Load a cursor with a blue outlined green rectangle
*/
seInitCursor(DevId);
seCursorOff(DevId);
seSetCursorColor(DevId, 0, GREEN16BPP);
seSetCursorColor(DevId, 1, BLUE16BPP);
seDrawCursorRect(DevId, 0, 0, 63, 63, 1, FALSE);
seDrawCursorRect(DevId, 1, 1, 62, 62, 0, TRUE);
seCursorOn(DevId);
/*
** Delay for 2 seconds
*/
seDelay(DevId, (DWORD)2);
/*
**
Move the cursor
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 76
Epson Research and Development
Vancouver Design Center
*/
seMoveCursor(DevId, width-1-63, 0);
return 0;
}
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 77
12 Sample Code
12.1 Introduction
There are two included examples of programming the SED1355 color graphics controller. First is a
demonstration using the HAL library and the second without. These code samples are for example
purposes only. Lastly, are three header files that may make some of the structures used clearer.
12.1.1 Sample code using the SED1355 HAL API
*/
// Sample code using 1355HAL API
*/
*/
**------------------------------------------------------------------------**
** Created 1998, Epson Research & Development
** Vancouver Design Centre
** Copyright (c) Epson Research and Development, Inc. 1998. All rights reserved.
**
** The HAL API code is configured for the following:
**
** 25.175 MHz ClkI
** 640x480 8 bit dual color STN panel @60Hz
** 50 ns EDO, 32 ms (self) refresh time
** Initial color depth - 8 bpp
**
**------------------------------------------------------------------------*/
#include
#include
#include
#include
#include
<stdio.h>
<stdlib.h>
<string.h>
"hal.h"
"appcfg.h"
/* Structures, constants and prototypes. */
/* HAL configuration information. */
/*--------------------------------------------------------------------------*/
void main(void)
{
int ChipId;
int Device;
/*
** Initialize the HAL.
** This step sets up the HAL for use but does not access the 1355.
*/
switch (seRegisterDevice(&HalInfo, &Device))
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 78
Epson Research and Development
Vancouver Design Center
{
case ERR_OK:
break;
case HAL_DEVICE_ERR:
printf("\nERROR: Too many devices registered.");
exit(1);
default:
printf("\nERROR: Could not register SED1355 device.");
exit(1);
}
/*
** Identify that this is indeed an SED1355.
*/
seGetId( Device, &ChipId);
if (ID_SED1355F0A != ChipId)
{
printf("\nERROR: Did not detect SED1355.");
exit(1);
}
/*
**
**
**
*/
if
{
Initialize the SED1355.
This step will actually program the registers with values taken from
the default register table in appcfg.h.
(ERR_OK != seSetInit(Device))
printf("\nERROR: Could not initialize device.");
exit(1);
}
/*
** The default initialization clears the display.
** Draw a 100x100 red rectangle in the upper left corner (0,0)
** of the display.
*/
seDrawRect(Device, 0, 0, 100, 100, 1, TRUE);
/*
** Init the HW cursor. The HAL performs several calculations to
** determine the best location to place the cursor image and
** will use that location from here on.
** The background must be set to transparent.
*/
seInitCursor(Device);
seDrawCursorRect(Device, 0, 0, 63, 63, 2, TRUE);
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 79
/*
** Set the first user definable color to black and
** the second user definable color to white.
*/
seSetCursorColor(Device, 0, 0);
seSetCursorColor(Device, 1, 0xFFFFFFFF);
/*
** Draw a hollow rectangle around the cursor and move
** the cursor to 101,101.
*/
seDrawCursorRect(Device, 0, 0, 63, 63, 1, FALSE);
seMoveCursor(Device, 101, 101);
exit(0);
}
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 80
Epson Research and Development
Vancouver Design Center
12.1.2 Sample code without using the SED1355 HAL API
/*
**===========================================================================
** INIT1355.C - sample code demonstrating the initialization of the SED1355.
**
Beta release 2.0 98-10-29
**
** The code in this example will perform initialization to the following
** specification:
**
** - 640 x 480 dual 16-bit color passive panel.
** - 75 Hz frame rate.
** - 8 BPP (256 colors).
** - 33 MHz input clock.
** - 2 MB of 60 ns EDO memory.
**
**
*** This is sample code only! ***
** This means:
** 1) Generic C is used. I assume that pointers can access the
**
relevant memory addresses (this is not always the case).
**
i.e. using the 1355B0B card on an x86 16 bit platform will require
**
changes to use a DOS extender to access memory and registers.
** 2) Register setup is done with discrete writes rather than being
**
table driven. This allows for clearer commenting. A real program
**
would probably store the register settings in an array and loop
**
through the array writing each element to a control register.
** 3) The pointer assignment for the register offset does not work on
**
x86 16 bit platforms.
**
**--------------------------------------------------------------------------** Copyright (c) 1998 Epson Research and Development, Inc.
** All Rights Reserved.
**===========================================================================
*/
/*
** Note that only the upper four bits of the LUT are actually used.
*/
unsigned char LUT8[256*3] =
{
/* Primary and secondary colors */
0x00, 0x00, 0x00, 0x00, 0x00, 0xA0, 0x00, 0xA0, 0x00, 0x00, 0xA0, 0xA0,
0xA0, 0x00, 0x00, 0xA0, 0x00, 0xA0, 0xA0, 0xA0, 0x00, 0xA0, 0xA0, 0xA0,
0x50, 0x50, 0x50, 0x00, 0x00, 0xF0, 0x00, 0xF0, 0x00, 0x00, 0xF0, 0xF0,
0xF0, 0x00, 0x00, 0xF0, 0x00, 0xF0, 0xF0, 0xF0, 0x00, 0xF0, 0xF0, 0xF0,
/* Gray shades */
0x00, 0x00, 0x00, 0x10, 0x10, 0x10, 0x20, 0x20, 0x20, 0x30, 0x30, 0x30,
0x40, 0x40, 0x40, 0x50, 0x50, 0x50, 0x60, 0x60, 0x60, 0x70, 0x70, 0x70,
0x80, 0x80, 0x80, 0x90, 0x90, 0x90, 0xA0, 0xA0, 0xA0, 0xB0, 0xB0, 0xB0,
0xC0, 0xC0, 0xC0, 0xD0, 0xD0, 0xD0, 0xE0, 0xE0, 0xE0, 0xF0, 0xF0, 0xF0,
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
/* Black to red */
0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
0x40, 0x00, 0x00, 0x50, 0x00, 0x00,
0x80, 0x00, 0x00, 0x90, 0x00, 0x00,
0xC0, 0x00, 0x00, 0xD0, 0x00, 0x00,
/* Black to green */
0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
0x00, 0x40, 0x00, 0x00, 0x50, 0x00,
0x00, 0x80, 0x00, 0x00, 0x90, 0x00,
0x00, 0xC0, 0x00, 0x00, 0xD0, 0x00,
/* Black to blue */
0x00, 0x00, 0x00, 0x00, 0x00, 0x10,
0x00, 0x00, 0x40, 0x00, 0x00, 0x50,
0x00, 0x00, 0x80, 0x00, 0x00, 0x90,
0x00, 0x00, 0xC0, 0x00, 0x00, 0xD0,
/* Blue to cyan (blue and green) */
0x00, 0x00, 0xF0, 0x00, 0x10, 0xF0,
0x00, 0x40, 0xF0, 0x00, 0x50, 0xF0,
0x00, 0x80, 0xF0, 0x00, 0x90, 0xF0,
0x00, 0xC0, 0xF0, 0x00, 0xD0, 0xF0,
/* Cyan (blue and green) to green */
0x00, 0xF0, 0xF0, 0x00, 0xF0, 0xE0,
0x00, 0xF0, 0xB0, 0x00, 0xF0, 0xA0,
0x00, 0xF0, 0x70, 0x00, 0xF0, 0x60,
0x00, 0xF0, 0x30, 0x00, 0xF0, 0x20,
/* Green to yellow (red and green) */
0x00, 0xF0, 0x00, 0x10, 0xF0, 0x00,
0x40, 0xF0, 0x00, 0x50, 0xF0, 0x00,
0x80, 0xF0, 0x00, 0x90, 0xF0, 0x00,
0xC0, 0xF0, 0x00, 0xD0, 0xF0, 0x00,
/* Yellow (red and green) to red */
0xF0, 0xF0, 0x00, 0xF0, 0xE0, 0x00,
0xF0, 0xB0, 0x00, 0xF0, 0xA0, 0x00,
0xF0, 0x70, 0x00, 0xF0, 0x60, 0x00,
0xF0, 0x30, 0x00, 0xF0, 0x20, 0x00,
/* Red to magenta (blue and red) */
0xF0, 0x00, 0x00, 0xF0, 0x00, 0x10,
0xF0, 0x00, 0x40, 0xF0, 0x00, 0x50,
0xF0, 0x00, 0x80, 0xF0, 0x00, 0x90,
0xF0, 0x00, 0xC0, 0xF0, 0x00, 0xD0,
/* Magenta (blue and red) to blue */
0xF0, 0x00, 0xF0, 0xE0, 0x00, 0xF0,
0xB0, 0x00, 0xF0, 0xA0, 0x00, 0xF0,
0x70, 0x00, 0xF0, 0x60, 0x00, 0xF0,
0x30, 0x00, 0xF0, 0x20, 0x00, 0xF0,
/* Black to magenta (blue and red) */
0x00, 0x00, 0x00, 0x10, 0x00, 0x10,
0x40, 0x00, 0x40, 0x50, 0x00, 0x50,
0x80, 0x00, 0x80, 0x90, 0x00, 0x90,
Programming Notes and Examples
Issue Date: 99/04/27
Page 81
0x20,
0x60,
0xA0,
0xE0,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x30,
0x70,
0xB0,
0xF0,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x20,
0x60,
0xA0,
0xE0,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x30,
0x70,
0xB0,
0xF0,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x20,
0x60,
0xA0,
0xE0,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x00,
0x30,
0x70,
0xB0,
0xF0,
0x00,
0x00,
0x00,
0x00,
0x20,
0x60,
0xA0,
0xE0,
0xF0,
0xF0,
0xF0,
0xF0,
0x00,
0x00,
0x00,
0x00,
0x30,
0x70,
0xB0,
0xF0,
0xF0,
0xF0,
0xF0,
0xF0,
0x00,
0x00,
0x00,
0x00,
0xF0,
0xF0,
0xF0,
0xF0,
0xD0,
0x90,
0x50,
0x10,
0x00,
0x00,
0x00,
0x00,
0xF0,
0xF0,
0xF0,
0xF0,
0xC0,
0x80,
0x40,
0x00,
0x20,
0x60,
0xA0,
0xE0,
0xF0,
0xF0,
0xF0,
0xF0,
0x00,
0x00,
0x00,
0x00,
0x30,
0x70,
0xB0,
0xF0,
0xF0,
0xF0,
0xF0,
0xF0,
0x00,
0x00,
0x00,
0x00,
0xF0,
0xF0,
0xF0,
0xF0,
0xD0,
0x90,
0x50,
0x10,
0x00,
0x00,
0x00,
0x00,
0xF0,
0xF0,
0xF0,
0xF0,
0xC0,
0x80,
0x40,
0x00,
0x00,
0x00,
0x00,
0x00,
0xF0,
0xF0,
0xF0,
0xF0,
0x00,
0x00,
0x00,
0x00,
0x20,
0x60,
0xA0,
0xE0,
0xF0,
0xF0,
0xF0,
0xF0,
0x00,
0x00,
0x00,
0x00,
0x30,
0x70,
0xB0,
0xF0,
0xD0,
0x90,
0x50,
0x10,
0x00,
0x00,
0x00,
0x00,
0xF0,
0xF0,
0xF0,
0xF0,
0xC0,
0x80,
0x40,
0x00,
0x00,
0x00,
0x00,
0x00,
0xF0,
0xF0,
0xF0,
0xF0,
0x20, 0x00, 0x20,
0x60, 0x00, 0x60,
0xA0, 0x00, 0xA0,
0x30, 0x00, 0x30,
0x70, 0x00, 0x70,
0xB0, 0x00, 0xB0,
SED1355
X23A-G-003-05
Page 82
0xC0, 0x00, 0xC0, 0xD0, 0x00, 0xD0,
/* Black to cyan (blue and green) */
0x00, 0x00, 0x00, 0x00, 0x10, 0x10,
0x00, 0x40, 0x40, 0x00, 0x50, 0x50,
0x00, 0x80, 0x80, 0x00, 0x90, 0x90,
0x00, 0xC0, 0xC0, 0x00, 0xD0, 0xD0,
/* Red to white */
0xF0, 0x00, 0x00, 0xF0, 0x10, 0x10,
0xF0, 0x40, 0x40, 0xF0, 0x50, 0x50,
0xF0, 0x80, 0x80, 0xF0, 0x90, 0x90,
0xF0, 0xC0, 0xC0, 0xF0, 0xD0, 0xD0,
/* Green to white */
0x00, 0xF0, 0x00, 0x10, 0xF0, 0x10,
0x40, 0xF0, 0x40, 0x50, 0xF0, 0x50,
0x80, 0xF0, 0x80, 0x90, 0xF0, 0x90,
0xC0, 0xF0, 0xC0, 0xD0, 0xF0, 0xD0,
/* Blue to white */
0x00, 0x00, 0xF0, 0x10, 0x10, 0xF0,
0x40, 0x40, 0xF0, 0x50, 0x50, 0xF0,
0x80, 0x80, 0xF0, 0x90, 0x90, 0xF0,
0xC0, 0xC0, 0xF0, 0xD0, 0xD0, 0xF0,
};
Epson Research and Development
Vancouver Design Center
0xE0, 0x00, 0xE0,
0xF0, 0x00, 0xF0,
0x00,
0x00,
0x00,
0x00,
0x20,
0x60,
0xA0,
0xE0,
0x20,
0x60,
0xA0,
0xE0,
0x00,
0x00,
0x00,
0x00,
0x30,
0x70,
0xB0,
0xF0,
0x30,
0x70,
0xB0,
0xF0,
0xF0,
0xF0,
0xF0,
0xF0,
0x20,
0x60,
0xA0,
0xE0,
0x20,
0x60,
0xA0,
0xE0,
0xF0,
0xF0,
0xF0,
0xF0,
0x30,
0x70,
0xB0,
0xF0,
0x30,
0x70,
0xB0,
0xF0,
0x20,
0x60,
0xA0,
0xE0,
0xF0,
0xF0,
0xF0,
0xF0,
0x20,
0x60,
0xA0,
0xE0,
0x30,
0x70,
0xB0,
0xF0,
0xF0,
0xF0,
0xF0,
0xF0,
0x30,
0x70,
0xB0,
0xF0,
0x20,
0x60,
0xA0,
0xE0,
0x20,
0x60,
0xA0,
0xE0,
0xF0,
0xF0,
0xF0,
0xF0,
0x30,
0x70,
0xB0,
0xF0,
0x30,
0x70,
0xB0,
0xF0,
0xF0,
0xF0,
0xF0,
0xF0
/*
** REGISTER_OFFSET points to the starting address of the SED1355 registers
*/
#define REGISTER_OFFSET
((unsigned char *) 0x14000000)
/*
** DISP_MEM_OFFSET points to the starting address of the display buffer memory
*/
#define DISP_MEM_OFFSET ((unsigned char *) 0x4000000)
/*
** DISP_MEMORY_SIZE is the size of display buffer memory
*/
#define DISP_MEMORY_SIZE
0x200000
/*
** Calculate the value to put in Ink/Cursor Start Address Select Register
**
Offset = (DISP_MEM_SIZE - (X * 8192)
** We want the offset to be just past the end of display memory so:
**
(640 * 480) = DISP_MEMORY_SIZE - (X * 8192)
**
**
CURSOR_START = (DISP_MEMORY_SIZE - (640 * 480)) / 8192
*/
#define CURSOR_START
218
void main(void)
{
unsigned char * pRegs = REGISTER_OFFSET;
unsigned char * pMem;
unsigned char * pLUT;
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 83
unsigned char * pTmp;
unsigned char * pCursor;
long lpCnt;
int idx;
int rgb;
long x, y;
/*
** Initialize the chip.
*/
/*
** Step 1: Enable the host interface.
**
** Register 1B: Miscellaneous Disable - host interface enabled, half frame
**
buffer enabled.
*/
*(pRegs + 0x1B) = 0x00;
/* 0000 0000 */
/*
** Step 2: Disable the FIFO
*/
*(pRegs + 0x23) = 0x80;
/* 1000 0000 */
/*
** Step 3: Set Memory Configuration
**
** Register 1: Memory Configuration - 4 ms refresh, EDO
*/
*(pRegs + 0x01) = 0x30;
/* 0011 0000 */
/*
** Step 4: Set Performance Enhancement 0 register
*/
*(pRegs + 0x22) = 0x24;
/* 0010 0100 */
/*
** Step 5: Set the rest of the registers in order.
*/
/*
** Register 2: Panel Type - 16-bit, format 1, color, dual, passive.
*/
*(pRegs + 0x02) = 0x26;
/* 0010 0110 */
/*
** Register 3: Mod Rate
*/
*(pRegs + 0x03) = 0x00;
/* 0000 0000 */
/*
** Register 4: Horizontal Display Width (HDP) - 640 pixels
**
(640 / 8) - 1 = 79t = 4Fh
*/
*(pRegs + 0x04) = 0x4f;
/* 0100 1111 */
/*
** Register 5: Horizontal Non-Display Period (HNDP)
**
PCLK
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 84
Epson Research and Development
Vancouver Design Center
**
Frame Rate = ----------------------------**
(HDP + HNDP) * (VDP + VNDP)
**
**
16,500,000
**
= ----------------------------**
(640 + HNDP) * (480 + VNDP)
**
** HNDP and VNDP must be calculated such that the desired frame rate
** is achieved.
*/
*(pRegs + 0x05) = 0x1F;
/* 0001 1111 */
/*
** Register 6: HRTC/FPLINE Start Position - applicable to CRT/TFT only.
*/
*(pRegs + 0x06) = 0x00;
/* 0000 0000 */
/*
** Register 7: HRTC/FPLINE Pulse Width - applicable to CRT/TFT only.
*/
*(pRegs + 0x07) = 0x00;
/* 0000 0000 */
/*
** Registers 8-9: Vertical Display Height (VDP) - 480 lines.
**
480/2 - 1 = 239t = 0xEF
*/
*(pRegs + 0x08) = 0xEF;
/* 1110 1111 */
*(pRegs + 0x09) = 0x00;
/* 0000 0000 */
/*
** Register A: Vertical Non-Display Period (VNDP)
**
This register must be programed with register 5 (HNDP)
**
to arrive at the frame rate closest to the desired
**
frame rate.
*/
*(pRegs + 0x0A) = 0x01;
/* 0000 0001 */
/*
** Register B: VRTC/FPFRAME Start Position - applicable to CRT/TFT only.
*/
*(pRegs + 0x0B) = 0x00;
/* 0000 0000 */
/*
** Register C: VRTC/FPFRAME Pulse Width - applicable to CRT/TFT only.
*/
*(pRegs + 0x0C) = 0x00;
/* 0000 0000 */
/*
** Register D: Display Mode - 8 BPP, LCD disabled.
*/
*(pRegs + 0x0D) = 0x0C;
/* 0000 1100 */
/*
** Registers E-F: Screen 1 Line Compare - unless setting up for
**
split screen operation use 0x3FF.
*/
*(pRegs + 0x0E) = 0xFF;
/* 1111 1111 */
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 85
*(pRegs + 0x0F) = 0x03;
/* 0000 0011 */
/*
** Registers 10-12: Screen 1 Display Start Address - start at the
**
first byte in display memory.
*/
*(pRegs + 0x10) = 0x00;
/* 0000 0000 */
*(pRegs + 0x11) = 0x00;
/* 0000 0000 */
*(pRegs + 0x12) = 0x00;
/* 0000 0000 */
/*
** Register 13-15: Screen 2 Display Start Address - not applicable
**
unless setting up for split screen operation.
*/
*(pRegs + 0x13) = 0x00;
/* 0000 0000 */
*(pRegs + 0x14) = 0x00;
/* 0000 0000 */
*(pRegs + 0x15) = 0x00;
/* 0000 0000 */
/*
** Register 16-17: Memory Address Offset - this address represents the
**
starting WORD. At 8BPP our 640 pixel width is 320
**
WORDS
*/
*(pRegs + 0x16) = 0x40;
/* 0100 0000 */
*(pRegs + 0x17) = 0x01;
/* 0000 0001 */
/*
** Register 18: Pixel Panning
*/
*(pRegs + 0x18) = 0x00;
/* 0000 0000 */
/*
** Register 19: Clock Configuration - In this case we must divide
**
PCLK by 2 to arrive at the best frequency to set
**
our desired panel frame rate.
*/
*(pRegs + 0x19) = 0x01;
/* 0000 0001 */
/*
** Register 1A: Power Save Configuration - enable LCD power, CBR refresh,
**
not suspended.
*/
*(pRegs + 0x1A) = 0x00;
/* 0000 0000 */
/*
** Register 1C-1D: MD Configuration Readback - these registers are
**
read only, but it’s OK to write a 0 to keep
**
the register configuration logic simpler.
*/
*(pRegs + 0x1C) = 0x00;
/* 0000 0000 */
*(pRegs + 0x1D) = 0x00;
/* 0000 0000 */
/*
** Register 1E-1F: General I/O Pins Configuration
*/
*(pRegs + 0x1E) = 0x00;
/* 0000 0000 */
*(pRegs + 0x1F) = 0x00;
/* 0000 0000 */
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 86
Epson Research and Development
Vancouver Design Center
/*
** Register 20-21: General I/O Pins Control
*/
*(pRegs + 0x20) = 0x00;
/* 0000 0000 */
*(pRegs + 0x21) = 0x00;
/* 0000 0000 */
/*
** Registers 24-26: LUT control.
**
For this example do a typical 8 BPP LUT setup.
**
** Setup the pointer to the LUT data and reset the LUT index register.
** Then, loop writing each of the RGB LUT data elements.
*/
pLUT = LUT8;
*(pRegs + 0x24) = 0;
for (idx = 0; idx < 256; idx++)
{
for (rgb = 0; rgb < 3; rgb++)
{
*(pRegs + 0x26) = *pLUT;
pLUT++;
}
}
/*
** Register 27: Ink/Cursor Control - disable ink/cursor
*/
*(pRegs + 0x27) = 0x00;
/* 0000 0000 */
/*
** Registers 28-29: Cursor X Position
*/
*(pRegs + 0x28) = 0x00;
/* 0000 0000 */
*(pRegs + 0x29) = 0x00;
/* 0000 0000 */
/*
** Registers 2A-2B: Cursor Y Position
*/
*(pRegs + 0x2A) = 0x00;
/* 0000 0000 */
*(pRegs + 0x2B) = 0x00;
/* 0000 0000 */
/*
** Registers 2C-2D: Ink/Cursor Color 0 - blue
*/
*(pRegs + 0x2C) = 0x1F;
/* 0001 1111 */
*(pRegs + 0x2D) = 0x00;
/* 0000 0000 */
/*
** Registers 2E-2F: Ink/Cursor Color 1 - green
*/
*(pRegs + 0x2E) = 0xE0;
/* 1110 0000 */
*(pRegs + 0x2F) = 0x07;
/* 0000 0111 */
/*
** Register 30: Ink/Cursor Start Address Select
*/
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 87
*(pRegs + 0x30) = 0x00;
/* 0000 0000 */
/*
** Register 31: Alternate FRM Register
*/
*(pRegs + 0x31) = 0x00;
/*
** Register 23: Performance Enhancement - display FIFO enabled, optimum
**
performance. The FIFO threshold is set to 0x00; for
**
15/16 bpp modes, set the FIFO threshold
**
to a higher value, such as 0x1B.
*/
*(pRegs + 0x23) = 0x00;
/* 0000 0000 */
/*
** Register D: Display Mode - 8 BPP, LCD enable.
*/
*(pRegs + 0x0D) = 0x0D;
/* 0000 1101 */
/*
** Clear memory by filling 2 MB with 0
*/
pMem = DISP_MEM_OFFSET;
for (lpCnt = 0; lpCnt < DISP_MEMORY_SIZE; lpCnt++)
{
*pMem = 0;
pMem++;
}
/*
** Draw a 100x100 red rectangle in the upper left corner (0, 0)
** of the display.
*/
pMem = DISP_MEM_OFFSET;
for (y = 0; y < 100; y++)
{
pTmp = pMem + y * 640L;
for (x = 0; x < 100; x++)
{
*pTmp = 0x0c;
pTmp++;
}
}
/*
** Init the HW cursor. In this example the cursor memory will be located
** immediately after display memory. Why here? Because it’s an easy
** location to calculate and will not interfere with the half frame buffer.
** Additionally, the HW cursor can be turned into an ink layer quite
** easily from this location.
*/
*(pRegs + 0x30) = CURSOR_START;
pTmp = pCursor = pMem + (DISP_MEMORY_SIZE - (CURSOR_START * 8192L));
/*
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 88
Epson Research and Development
Vancouver Design Center
** Set the contents of the cursor memory such that the cursor
** is transparent. To do so, write a 10101010b pattern in each byte.
** The cursor is 2 bpp so a 64x64 cursor requires
** 64/4 * 64 = 1024 bytes of memory.
*/
for (lpCnt = 0; lpCnt < 1024; lpCnt++)
{
*pTmp = 0xAA;
pTmp++;
}
/*
** Set the first user definable cursor color to black and
** the second user definable cursor color to white.
*/
*(pRegs + 0x2C) = 0;
*(pRegs + 0x2D) = 0;
*(pRegs + 0x2E) = 0xFF;
*(pRegs + 0x2F) = 0xFF;
/*
** Draw a hollow rectangle around the cursor.
*/
pTmp = pCursor;
for (lpCnt = 0; lpCnt < 16; lpCnt++)
{
*pTmp = 0x55;
pTmp++;
}
for (lpCnt = 0; lpCnt < 14; lpCnt++)
{
*pTmp = 0x6A;
pTmp += 15;
*pTmp = 0xA9;
pTmp++;
}
for (lpCnt = 0; lpCnt < 16; lpCnt++)
{
*pTmp = 0x55;
pTmp++;
}
/*
** Move the cursor to 100, 100.
*/
/*
** First we wait for the next vertical non-display
** period before updating the position registers.
*/
while (*(pRegs + 0x0A) & 0x80);
/* wait while in VNDP */
while (!(*(pRegs + 0x0A) & 0x80)); /* wait while in VDP */
/*
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 89
** Now update the position registers.
*/
*(pRegs + 0x28) = 100;
/* Set Cursor X = 100 */
*(pRegs + 0x29) = 0x00;
*(pRegs + 0x2A) = 100;
/* Set Cursor Y = 100 */
*(pRegs + 0x2B) = 0x00;
/*
** Enable the hardware cursor.
*/
*(pRegs + 0x27) = 0x40;
}
}
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 90
Epson Research and Development
Vancouver Design Center
12.1.3 Header Files
The following header files are included as they help to explain some of the structures used when
programming the SED1355.
The following header file defines the structure used to store the configuration information contained
in all utilities using the SED1355 HAL API.
/********************************************************************************/
/* 1355 HAL INF
(do not remove)
*/
/* HAL_STRUCT Information generated by 1355CFG.EXE
*/
/* Copyright (c) 1998 Epson Research and Development Inc. All rights reserved. */
/*
*/
/* Include this file ONCE in your primary source file
*/
/********************************************************************************/
HAL_STRUCT HalInfo =
{
"1355 HAL EXE",
0x1234,
sizeof(HAL_STRUCT),
0,
/*
/*
/*
/*
ID string
*/
Detect Endian */
Size
*/
Default Mode */
{
{
0x00,
0xEF,
0x00,
0x00,
0x00,
0x00,
0x00,
0x50,
0x00,
0x00,
0x01,
0x00,
0x00,
0x00
0x00,
0xDF,
0x00,
0x00,
0x00,
0x00,
0x00,
0x50,
0x01,
0x00,
0x00,
0x00,
0x00,
0x00
0xFF,
0xDF,
0x00,
0x00,
0x00,
0x50,
0x01,
0x00,
0x01,
0x00,
/* LCD */
0x16, 0x00,
0x34, 0x00,
0x00, 0x00,
0x02, 0x00,
0x48, 0x00,
0x00, 0x00,
0x4F,
0x00,
0x00,
0x00,
0x00,
0x00,
0x03,
0x0D,
0x00,
0x00,
0x00,
0x00,
0x00,
0xFF,
0x40,
0x00,
0x00,
0x00,
0x00,
0x03,
0x01,
0x00,
0x00,
0x00,
/* CRT */
0x16, 0x00,
0x2B, 0x09,
0x00, 0x00,
0x02, 0x01,
0x48, 0x00,
0x00, 0x00,
0x4F,
0x01,
0x00,
0x00,
0x00,
0x00,
0x13,
0x0E,
0x00,
0x00,
0x00,
0x00,
0x01,
0xFF,
0x40,
0x00,
0x00,
0x00,
0x0B,
0x03,
0x01,
0x00,
0x00,
0x00,
/* SIMUL */
0x16, 0x00,
0x2B, 0x09,
0x00, 0x00,
0x02, 0x01,
0x48, 0x00,
0x4F,
0x01,
0x00,
0x00,
0x00,
0x13,
0x0F,
0x00,
0x00,
0x00,
0x01,
0xFF,
0x40,
0x00,
0x00,
0x0B,
0x03,
0x01,
0x00,
0x00,
},
{
},
{
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
0x00,
0x00,
0x00,
0x00
0x00,
Page 91
0x00,
0x00,
0x00,
0x00,
0x00,
},
},
25175,
8000,
0xE00000,
0xC00000,
60,
60,
50,
84,
30,
50,
16
/* ClkI (kHz)
*/
/* BusClk (kHz)
*/
/* Register Address */
/* Display Address */
/* Panel Frame Rate (Hz) */
/* CRT Frame Rate (Hz) */
/* Memory speed in ns */
/* Ras to Cas Delay in ns */
/* Ras Access Charge time in ns */
/* RAS Access Charge time in ns */
/* Host CPU bus width in bits */
};
The following header file defines the SED1355 HAL registers.
/*===========================================================================
** HAL_REGS.H
** Created 1998, Epson Research & Development
**
Vancouver Design Center.
** Copyright(c) Epson Research and Development Inc. 1997, 1998. All rights
reserved.
=============================================================================*/
#ifndef __HAL_REGS_H__
#define __HAL_REGS_H__
/*
** 1355 register names
*/
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
REG_REVISION_CODE
REG_MEMORY_CONFIG
REG_PANEL_TYPE
REG_MOD_RATE
REG_HORZ_DISP_WIDTH
REG_HORZ_NONDISP_PERIOD
REG_HRTC_START_POSITION
REG_HRTC_PULSE_WIDTH
REG_VERT_DISP_HEIGHT0
REG_VERT_DISP_HEIGHT1
REG_VERT_NONDISP_PERIOD
REG_VRTC_START_POSITION
REG_VRTC_PULSE_WIDTH
Programming Notes and Examples
Issue Date: 99/04/27
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
SED1355
X23A-G-003-05
Page 92
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
#define
Epson Research and Development
Vancouver Design Center
REG_DISPLAY_MODE
REG_SCRN1_LINE_COMPARE0
REG_SCRN1_LINE_COMPARE1
REG_SCRN1_DISP_START_ADDR0
REG_SCRN1_DISP_START_ADDR1
REG_SCRN1_DISP_START_ADDR2
REG_SCRN2_DISP_START_ADDR0
REG_SCRN2_DISP_START_ADDR1
REG_SCRN2_DISP_START_ADDR2
REG_MEM_ADDR_OFFSET0
REG_MEM_ADDR_OFFSET1
REG_PIXEL_PANNING
REG_CLOCK_CONFIG
REG_POWER_SAVE_CONFIG
REG_MISC
REG_MD_CONFIG_READBACK0
REG_MD_CONFIG_READBACK1
REG_GPIO_CONFIG0
REG_GPIO_CONFIG1
REG_GPIO_CONTROL0
REG_GPIO_CONTROL1
REG_PERF_ENHANCEMENT0
REG_PERF_ENHANCEMENT1
REG_LUT_ADDR
REG_RESERVED_1
REG_LUT_DATA
REG_INK_CURSOR_CONTROL
REG_CURSOR_X_POSITION0
REG_CURSOR_X_POSITION1
REG_CURSOR_Y_POSITION0
REG_CURSOR_Y_POSITION1
REG_INK_CURSOR_COLOR0_0
REG_INK_CURSOR_COLOR0_1
REG_INK_CURSOR_COLOR1_0
REG_INK_CURSOR_COLOR1_1
REG_INK_CURSOR_START_ADDR
REG_ALTERNATE_FRM
0x0D
0x0E
0x0F
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1A
0x1B
0x1C
0x1D
0x1E
0x1F
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0x27
0x28
0x29
0x2A
0x2B
0x2C
0x2D
0x2E
0x2F
0x30
0x31
/*
** WARNING!!! MAX_REG must be the last available register!!!
*/
#define MAX_REG
0x31
#endif
/*
__HAL_REGS_H__ */
The following header file defines the structures used in the SED1355 HAL API.
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 93
**===========================================================================
** HAL.H
**--------------------------------------------------------------------------** Created 1998, Epson Research & Development
**
Vancouver Design Center.
** Copyright(c) Epson Research and Development Inc. 1997, 1998. All rights
reserved.
**===========================================================================
*/
#ifndef _HAL_H_
#define _HAL_H_
#pragma warning(disable:4001)
// Disable the ’single line comment’ warning.
#include "hal_regs.h"
/*-------------------------------------------------------------------------*/
typedef
typedef
typedef
typedef
typedef
unsigned
unsigned
unsigned
unsigned
char
short
long
int
int
BYTE;
WORD;
DWORD;
UINT;
BOOL;
#ifdef INTEL
typedef BYTE far *LPBYTE;
typedef WORD far *LPWORD;
typedef DWORD far *LPDWORD;
#else
typedef BYTE
*LPBYTE;
typedef WORD
*LPWORD;
typedef DWORD
*LPDWORD;
#endif
#ifndef LOBYTE
#define LOBYTE(w)
#endif
((BYTE)(w))
#ifndef HIBYTE
#define HIBYTE(w)
#endif
((BYTE)(((UINT)(w) >> 8) & 0xFF))
#ifndef LOWORD
#define LOWORD(l)
#endif
((WORD)(DWORD)(l))
#ifndef HIWORD
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 94
Epson Research and Development
Vancouver Design Center
#define HIWORD(l)
#endif
((WORD)((((DWORD)(l)) >> 16) & 0xFFFF))
#ifndef MAKEWORD
#define MAKEWORD(lo, hi) ((WORD)(((WORD)(lo)) | (((WORD)(hi)) << 8)) )
#endif
#ifndef MAKELONG
#define MAKELONG(lo, hi) ((long)(((WORD)(lo)) | (((DWORD)((WORD)(hi))) << 16)))
#endif
#ifndef TRUE
#define TRUE
#endif
1
#ifndef FALSE
#define FALSE
#endif
0
#define OFF 0
#define ON 1
#ifndef NULL
#ifdef __cplusplus
#define NULL
0
#else
#define NULL
((void *)0)
#endif
#endif
/*-------------------------------------------------------------------------*/
/*
** SIZE_VERSION is the
** SIZE_STATUS
is the
** SIZE_REVISION is the
*/
#define SIZE_VERSION
#define SIZE_STATUS
#define SIZE_REVISION
#ifdef ENABLE_DPF
#define
#define
#define
#define
size of the version string (eg. "1.00")
size of the status string (eg. "b" for beta)
size of the status revision string (eg. "00")
5
2
3
/* Debug_printf() */
DPF(exp) printf(#exp "\n")
DPF1(exp) printf(#exp " = %d\n", exp)
DPF2(exp1, exp2) printf(#exp1 "=%d " #exp2 "=%d\n", exp1, exp2)
DPFL(exp) printf(#exp " = %x\n", exp)
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 95
#else
#define DPF(exp) ((void)0)
#define DPF1(exp) ((void)0)
#define DPFL(exp) ((void)0)
#endif
/*-------------------------------------------------------------------------*/
enum
{
ERR_OK = 0,
ERR_FAILED,
/* No error, call was successful. */
/* General purpose failure.
*/
ERR_UNKNOWN_DEVICE,
ERR_INVALID_PARAMETER,
ERR_HAL_BAD_ARG,
ERR_TOOMANY_DEVS,
/* */
/* Function was called with invalid parameter. */
ERR_INVALID_STD_DEVICE
};
/*******************************************
* Definitions for seGetId()
*******************************************/
enum
{
ID_UNKNOWN,
ID_SED1355,
ID_SED1355F0A
};
#define MAX_DEVICE
10
/*
** SE_RESERVED is for reserved device
*/
#define SE_RESERVED
0
/*
** DetectEndian is used to determine whether the most significant
** and least significant bytes are reversed by the given compiler.
*/
#define ENDIAN
0x1234
#define REV_ENDIAN
0x3412
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 96
Epson Research and Development
Vancouver Design Center
/*******************************************
* Definitions for Internal calculations.
*******************************************/
#define MIN_NON_DISP_X
#define MAX_NON_DISP_X
32
256
#define MIN_NON_DISP_Y
#define MAX_NON_DISP_Y
2
64
/*******************************************
* Definitions for seSetFont
*******************************************/
enum
{
HAL_STDOUT,
HAL_STDIN,
HAL_DEVICE_ERR
};
#define FONT_NORMAL
#define FONT_DOUBLE_WIDTH
#define FONT_DOUBLE_HEIGHT
0x00
0x01
0x02
enum
{
RED,
GREEN,
BLUE
};
/*******************************************
* Definitions for seSplitScreen()
*******************************************/
enum
{
SCREEN1 = 1,
SCREEN2
};
/*******************************************
* Definitions for sePowerSaveMode()
*******************************************/
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
#define PWR_CBR_REFRESH
#define PWR_SELF_REFRESH
#define PWR_NO_REFRESH
Page 97
0x00
0x01
0x02
/*************************************************************************/
enum
{
DISP_MODE_LCD = 0,
DISP_MODE_CRT,
DISP_MODE_SIMULTANEOUS,
MAX_DISP_MODE
};
typedef struct tagHalStruct
{
char szIdString[16];
WORD wDetectEndian;
WORD wSize;
WORD wDefaultMode;
BYTE Regs[MAX_DISP_MODE][MAX_REG + 1];
DWORD
DWORD
DWORD
DWORD
WORD
dwClkI;
dwBusClk;
dwRegAddr;
dwDispMem;
wPanelFrameRate;
/*
/*
/*
/*
/*
Input Clock Frequency (in kHz) */
Bus Clock Frequency (in kHz) */
Starting address of registers */
Starting address of display buffer memory */
Desired panel frame rate */
WORD
WORD
WORD
WORD
WORD
WORD
wCrtFrameRate;
wMemSpeed;
wTrc;
wTrp;
wTrac;
wHostBusWidth;
/*
/*
/*
/*
/*
/*
Desired CRT rate */
Memory speed in ns */
Ras to Cas Delay in ns */
Ras Precharge time in ns */
Ras Access Charge time in ns */
Host CPU bus width in bits */
} HAL_STRUCT;
typedef HAL_STRUCT * PHAL_STRUCT;
#ifdef INTEL
typedef HAL_STRUCT far * LPHAL_STRUCT;
#else
typedef HAL_STRUCT
* LPHAL_STRUCT;
#endif
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 98
Epson Research and Development
Vancouver Design Center
/*=========================================================================*/
/*
FUNCTION PROTO-TYPES
*/
/*=========================================================================*/
/*---------------------------- HAL Support --------------------------------*/
int
int
int
int
seInitHal( void );
seGetDetectedBusWidth(int *bits);
seRegisterDevice( const LPHAL_STRUCT lpHalInfo, int *Device );
seGetMemSize( int seReserved1, DWORD *val );
#define CLEAR_MEM
TRUE
#define DONT_CLEAR_MEM
FALSE
int seSetDisplayMode(int device, int DisplayMode, int ClearMem);
int seSetInit(int device);
int seGetId( int seReserved1, int *pId );
void seGetHalVersion( const char **pVersion, const char **pStatus, const char **pStatusRevision );
/*---------------------------- Chip Access --------------------------------*/
int seGetReg( int seReserved1, int index, BYTE *pValue );
int seSetReg( int seReserved1, int index, BYTE value );
/*------------------------------- Misc ------------------------------------*/
int seSetBitsPerPixel( int seReserved1, UINT nBitsPerPixel );
int seGetBitsPerPixel( int seReserved1, UINT *pBitsPerPixel );
int
int
int
int
seGetBytesPerScanline( int seReserved1, UINT *pBytes );
seGetScreenSize( int seReserved1, UINT *width, UINT *height );
seHWSuspend(int seReserved1, BOOL val);
seSelectBusWidth(int seReserved1, int width);
int seDelay( int seReserved1, DWORD Seconds );
int seGetLastUsableByte( int seReserved1, DWORD *LastByte );
int seDisplayEnable(int seReserved1, BYTE NewState);
int
int
int
int
seSplitInit( int seReserved1, DWORD wScrn1Addr, DWORD wScrn2Addr );
seSplitScreen( int nReserved1, int WhichScreen, long VisibleScanlines );
seVirtInit( int seReserved1, DWORD xVirt, DWORD *yVirt );
seVirtMove( int seReserved1, int nWhichScreen, DWORD x, DWORD y );
/*-------------------------- Power Save -----------------------------------*/
int seSetPowerSaveMode( int seReserved1, int PowerSaveMode );
SED1355
X23A-G-003-05
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 99
/*------------------------- Memory Access ---------------------------------*/
int seReadDisplayByte( int seReserved1, DWORD offset, BYTE *pByte );
int seReadDisplayWord( int seReserved1, DWORD offset, WORD *pWord );
int seReadDisplayDword( int seReserved1, DWORD offset, DWORD *pDword );
int seWriteDisplayBytes( int seReserved1, DWORD addr, BYTE val, DWORD count );
int seWriteDisplayWords( int seReserved1, DWORD addr, WORD val, DWORD count );
int seWriteDisplayDwords( int seReserved1, DWORD addr, DWORD val, DWORD count );
/*------------------------------- Drawing ---------------------------------*/
int seGetInkStartAddr(int seReserved1, DWORD *addr);
int seGetPixel( int seReserved1, long x, long y, DWORD *pVal );
int seSetPixel( int seReserved1, long x, long y, DWORD color );
int seDrawLine( int seReserved1, long x1, long y1, long x2, long y2, DWORD color );
int seDrawRect( int seReserved1, long x1, long y1, long x2, long y2, DWORD color,
BOOL SolidFill );
int seDrawEllipse(int seReserved1, long xc, long yc, long xr, long yr, DWORD color,
BOOL SolidFill);
int seDrawCircle( int seReserved1, long xCenter, long yCenter, long radius, DWORD
color, BOOL SolidFill );
/*------------------------------- Hardware Cursor ------------------------------*/
int seInitCursor(int seReserved1);
int seCursorOff(int seReserved1);
int seGetCursorStartAddr(int seReserved1, DWORD *addr);
int seMoveCursor(int seReserved1, long x, long y);
int seSetCursorColor(int seReserved1, int index, DWORD color);
int seSetCursorPixel( int seReserved1, long x, long y, DWORD color );
int seDrawCursorLine( int seReserved1, long x1, long y1, long x2, long y2, DWORD
color );
int seDrawCursorRect( int seReserved1, long x1, long y1, long x2, long y2, DWORD
color, BOOL SolidFill );
int seDrawCursorEllipse(int seReserved1, long xc, long yc, long xr, long yr, DWORD
color, BOOL SolidFill);
int seDrawCursorCircle( int seReserved1, long xCenter, long yCenter, long radius,
DWORD color, BOOL SolidFill );
/*------------------------------- Hardware Ink Layer ---------------------------*/
int
int
int
int
int
seInitInk(int seReserved1);
seInkOff(int seReserved1);
seGetInkStartAddr(int seReserved1, DWORD *addr);
seSetInkColor(int seReserved1, int index, DWORD color);
seSetInkPixel( int seReserved1, long x, long y, DWORD color );
Programming Notes and Examples
Issue Date: 99/04/27
SED1355
X23A-G-003-05
Page 100
Epson Research and Development
Vancouver Design Center
int seDrawInkLine( int seReserved1, long x1, long y1, long x2, long y2, DWORD color
);
int seDrawInkRect( int seReserved1, long x1, long y1, long x2, long y2, DWORD color,
BOOL SolidFill );
int seDrawInkEllipse(int seReserved1, long xc, long yc, long xr, long yr, DWORD
color, BOOL SolidFill);
int seDrawInkCircle( int seReserved1, long xCenter, long yCenter, long radius, DWORD
color, BOOL SolidFill );
/*------------------------------ Color ------------------------------------*/
int
int
int
int
seSetLut( int seReserved1, BYTE
seGetLut( int seReserved1, BYTE
seSetLutEntry( int seReserved1,
seGetLutEntry( int seReserved1,
*pLut, int
*pLut, int
int index,
int index,
count );
count );
BYTE *pEntry );
BYTE *pEntry );
/*--------------------------- C Like Support ------------------------------*/
int seDrawText( int seReserved1, char *fmt, ... );
int sePutChar( int seReserved1, int ch );
int seGetChar( void );
/*--------------------------- XLIB Support --------------------------------*/
int seGetLinearDispAddr(int seReserved1, DWORD *pDispLogicalAddr);
int InitLinear(int seReserved1);
#endif
SED1355
X23A-G-003-05
/* _HAL_H_ */
Programming Notes and Examples
Issue Date: 99/04/27
Epson Research and Development
Vancouver Design Center
Page 101
Appendix A Supported Panel Values
A.1 Supported Panel Values
The following tables show related register data for different panels. All the examples are based on
8 bpp and 2M bytes of 50 ns EDO-DRAM.
Note
The following settings may not reflect the ideal settings for your system configuration. Power,
speed, and cost requirements may dictate different starting parameters for your system
(e.g. [email protected] using 12MHz clock).
Table 12-1: Passive Single Panel @ 320x240 with 40MHz Pixel Clock
Register
REG[02h]
REG[03h]
REG[04h]
REG[05h]
REG[08h]
REG[09h]
REG[0Ah]
REG[0Dh]
REG[19h]
REG[1Bh]
REG[24h]
REG[26h]
Mono 4-Bit
[email protected]
0000 0000
0000 0000
0010 0111
0001 0111
1110 1111
0000 0000
0011 1110
0000 1101
0000 0011
0000 0001
0000 0000
load LUT
Mono 4-Bit
EL
[email protected]
1000 0000
0000 0000
0010 0111
0001 0111
1110 1111
0000 0000
0011 1110
0000 1101
0000 0011
0000 0001
0000 0000
load LUT
Color 8-Bit
[email protected]
0001 0100
0000 0000
0010 0111
0001 0111
1110 1111
0000 0000
0011 1110
0000 1101
0000 0011
0000 0001
0000 0000
load LUT
Color 8-Bit
Format 2
Notes
[email protected]
0001 1100
0000 0000
0010 0111
0001 0111
1110 1111
0000 0000
0011 1110
0000 1101
0000 0011
0000 0001
0000 0000
load LUT
set panel type
set MOD rate
set horizontal display width
set horizontal non-display period
set vertical display height bits 7-0
set vertical display height bits 9-8
set vertical non-display period
set 8 bpp and LCD enable
set MCLK and PCLK divide
disable half frame buffer
set Look-Up Table address to 0
load Look-Up Table
Table 12-2: Passive Single Panel @ 640x480 with 40MHz Pixel Clock
Register
REG[02h]
REG[03h]
REG[04h]
REG[05h]
REG[08h]
REG[09h]
REG[0Ah]
REG[0Dh]
REG[19h]
REG[1Bh]
REG[24h]
REG[26h]
Mono 8-Bit
Color 8-Bit
Color 16-Bit
[email protected]
[email protected]
[email protected]
0001 0000
0000 0000
0100 1111
0000 0011
1101 1111
0000 0001
0000 0010
0000 1101
0000 0001
0000 0001
0000 0000
load LUT
0001 0100
0000 0000
0100 1111
0000 0011
1101 1111
0000 0001
0000 0010
0000 1101
0000 0001
0000 0001
0000 0000
load LUT
0010 0100
0000 0000
0100 1111
0000 0011
1101 1111
0000 0001
0000 0010
0000 1101
0000 0001
0000 0001
0000 0000
load LUT
Programming Notes and Examples
Issue Date: 99/04/27
Notes
set panel type
set MOD rate
set horizontal display width
set horizontal non-display period
set vertical display height bits 7-0
set vertical display height bits 9-8
set vertical non-display period
set 8 bpp and LCD enable
set MCLK and PCLK divide
disable half frame buffer
set Look-Up Table address to 0
load Look-Up Table
SED1355
X23A-G-003-05
Page 102
Epson Research and Development
Vancouver Design Center
Table 12-3: Passive Dual Panel @ 640x480 with 40MHz Pixel Clock
Register
REG[02h]
Mono 4-Bit EL
Mono 8-Bit
Color 8-Bit
Color 16-Bit
[email protected]
[email protected]
[email protected]
[email protected]
1000 0010
0001 0010
0001 0110
0010 0110
Notes
set panel type
REG[03h]
0000 0000
0000 0000
0000 0000
0000 0000
set MOD rate
REG[04h]
0100 1111
0100 1111
0100 1111
0100 1111
set horizontal display width
REG[05h]
0000 0101
0000 0101
0000 0101
0000 0101
set horizontal non-display period
REG[08h]
1110 1111
1110 1111
1110 1111
1110 1111
set vertical display height bits 7-0
REG[09h]
0000 0000
0000 0000
0000 0000
0000 0000
set vertical display height bits 9-8
REG[0Ah]
0011 1110
0011 1110
0011 1110
0011 1110
set vertical non-display period
REG[0Dh]
0000 1101
0000 1101
0000 1101
0000 1101
set 8 bpp and LCD enable
REG[19h]
0000 0010
0000 0010
0000 0010
0000 0010
set MCLK and PCLK divide
REG[1Bh]
0000 0000
0000 0000
0000 0000
0000 0000
enable half frame buffer
REG[24h]
0000 0000
0000 0000
0000 0000
0000 0000
set Look-Up Table address to 0
REG[26h]
load LUT
load LUT
load LUT
load LUT
load Look-Up Table
Table 12-4: TFT Single Panel @ 640x480 with 25.175 MHz Pixel Clock
Register
SED1355
X23A-G-003-05
Color 16-Bit
[email protected]
Notes
REG[02h]
0010 0101
set panel type
REG[03h]
0000 0000
set MOD rate
REG[04h]
0100 1111
set horizontal display width
REG[05h]
0001 0011
set horizontal non-display period
REG[06h]
0000 0001
set HSYNC start position
REG[07h]
0000 1011
set HSYNC polarity and pulse width
REG[08h]
1101 1111
set vertical display height bits 7-0
REG[09h]
0000 0001
set vertical display height bits 9-8
REG[0Ah]
0010 1011
set vertical non-display period
REG[0Bh]
0000 1001
set VSYNC start position
REG[0Ch]
0000 0001
set VSYNC polarity and pulse width
REG[0Dh]
0000 1101
set 8 bpp and LCD enable
REG[19h]
0000 0000
set MCLK and PCLK divide
REG[1Bh]
0000 0001
disable half frame buffer
REG[24h]
0000 0000
set Look-Up Table address to 0
REG[26h]
load LUT
load Look-Up Table
Programming Notes and Examples
Issue Date: 99/04/27
SED1355F0A Register Summary
X23A-R-001-02
REG[00h] REVISION CODE REGISTER 1 (For SED1355: Product Code=000011b, Revision Code=00b) RO
Product Code
Bit 5
Bit 4
Bit 3
REG[11h] SCREEN 1 DISPLAY START ADDRESS REGISTER 1
Bit 2
Bit 1
Bit 0
Bit 1
RW
RC Timing Value 9
Bit 0
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
REG[12h] SCREEN 1 DISPLAY START ADDRESS REGISTER 2
REG[01h] MEMORY CONFIGURATION REGISTER
n/a
1/0
Refresh Rate 3
2
Bit 2
Bit 1
n/a
Bit 0
WE# Control
n/a
RW
RW
Memory
Type
n/a
n/a
n/a
Screen 1 Start Address
n/a
Bit 19
Bit 18
Bit 17
Bit 16
REG[13h] SCREEN 2 DISPLAY START ADDRESS REGISTER 0
REG[02h] PANEL TYPE REGISTER
EL Panel
Enable
n/a
1/0
Panel Data Width 4
Bit 1
Bit 0
RW
Panel Data Color/Mono Dual/Single TFT/Passive
Format Slct Panel Slct
Panel Slct LCD Pan Slct
REG[03h] MOD RATE REGISTER
n/a
n/a
RW
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RW
Horizontal Display Width = 8(REG + 1)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
n/a
n/a
RW
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RW
HRTC/FPLINE Start Position = 8(REG + 1)
n/a
Bit 4
Bit 3
Bit 2
Bit 1
n/a
Bit 2
Bit 1
REG[08h] VERTICAL DISPLAY HEIGHT REGISTER 0
Bit 6
n/a
Bit 5
Bit 4
n/a
Bit 3
Bit 2
n/a
n/a
Bit 0
Bit 1
Vertical Display Height
Bit 9
n/a
RW
Bit 4
Bit 3
Bit 2
Bit 1
REG[0Bh] VRTC/FPFRAME START POSITION REGISTER
n/a
n/a
Bit 0
RW
VRTC/FPFRAME Start Position = (REG + 1)
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
REG[0Ch] VRTC/FPFRAME PULSE WIDTH REGISTER
VRTC
FPFRAME
Polarity Slct Polarity Slct
Bit 8
Vertical Non-Display Period (VNDP) = (REG + 1)
Bit 5
n/a
Bit 0
RW
n/a
n/a
VRTC/FPFRAME Pulse Width = (REG + 1)
Bit 2
Bit 1
Bit 12
Bit 11
n/a
n/a
Bit 9
REG[0Dh] DISPLAY MODE REGISTER
Bit 7
Bit 6
Bit 5
Bit 19
Bit 3
n/a
n/a
Bit 18
Bit 17
Bit 1
Bit 0
n/a
Bit 3
Bit 2
Bit 1
Bit 2
Bit 1
Bit 9
Bit 2
Bit 1
n/a
n/a
n/a
n/a
n/a
n/a
MCLK
Divide Slct
n/a
n/a
n/a
Bit 1
RW
n/a
n/a
REG[1Ch] MD CONFIGURATION READBACK R EGISTER 0
MD7
Status
MD6
Status
MD5
Status
MD14
Status
MD13
Status
MD3
Status
MD2
Status
MD1
Status
RO
MD12
Status
MD11
Status
MD10
Status
MD9
Status
Bit 4
n/a
Bit 7
Bit 6
n/a
n/a
Bit 0
Bit 2
Bit 1
GPIO3 Pin
IO Config
GPIO2 Pin
IO Config
GPIO1 Pin
IO Config
n/a
n/a
Bit 0
n/a
n/a
Screen 1 Line Compare
Bit 9
REG[10h] SCREEN 1 DISPLAY START ADDRESS REGISTER 0
Bit 8
RW
Bit 3
Bit 2
Bit 1
Bit 0
n/a
n/a
n/a
n/a
RW
Bit 3
Bit 2
Bit 1
Bit 0
Bit 1
Bit 0
RW
n/a
n/a
Cursor High Threshold
Bit 3
Bit 2
Bit 1
Bit 0
REG[28h] CURSOR X POSITION REGISTER 0
RW
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
n/a
n/a
n/a
Bit 1
Bit 0
REG[29h] CURSOR X POSITION REGISTER 1
Reserved
n/a
RW
n/a
Cursor X Position
Bit 9
Bit 8
REG[2Ah] CURSOR Y POSITION REGISTER 0
RW
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
n/a
n/a
n/a
Bit 1
Bit 0
REG[2Bh] CURSOR Y POSITION REGISTER 1
Reserved
n/a
RW
n/a
Cursor Y Position
Bit 9
Bit 8
REG[2Ch] INK/CURSOR COLOR 0 REGISTER 0
RW
Cursor Color 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
REG[2Dh] INK/CURSOR COLOR 0 REGISTER 1
RW
Cursor Color 0
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
REG[2Eh] INK/CURSOR COLOR 1 REGISTER 0
RW
Cursor Color 1
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
REG[2Fh] INK/CURSOR COLOR 1 REGISTER 1
RW
Cursor Color 1
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
REG[30h] INK/CURSOR START ADDRESS SELECT REGISTER
RW
Ink/Cursor Start Address Select 12
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RW
n/a
n/a
n/a
n/a
REG[31h] ALTERNATE FRM REGISTER
RW
Alternate Frame Range Modulation Select
REG[20h] GENERAL IO PINS CONTROL REGISTER 0
n/a
n/a
n/a
RW
GPIO3 Pin
IO Status
GPIO2 Pin
IO Status
GPIO1 Pin
IO Status
REG[21h] GENERAL IO PINS CONTROL REGISTER 1
GPO
Control
n/a
n/a
n/a
RW
n/a
n/a
n/a
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
n/a
RW
n/a
Bit 4
REG[27h] INK/CURSOR CONTROL REGISTER
Bit 7 WO
n/a
RW
RW
REG[1Fh] GENERAL IO PINS CONFIGURATION REGISTER 1
n/a
Bit 0
REG[26h] LOOK-UP TABLE DATA REGISTER
RW
Bit 3
Bit 5
MD8
Status
CRT Enable LCD Enable
Bit 1
REG[0Fh] SCREEN 1 LINE COMPARE REGISTER 1
n/a
n/a
Bit 1
REG[24h] LOOK-UP TABLE ADDRESS REGISTER
Bit 15
n/a
n/a
MD0
Status
Bit 0
Screen 1 Line Compare
Bit 5
Half Frame
Buffer
Disable
RO
MD4
Status
REG[1Dh] MD CONFIGURATION READBACK R EGISTER 1
MD15
Status
Bit 0
RW
n/a
Bit 2
Cursor Y Position
Bit 0
8
Software
LCD Power Suspend Refresh Select
Suspend En
Disable
Bit 1
Bit 0
n/a
Bit 3
PCLK Divide 7 Slct
REG[1Bh] MISCELLANIOUS REGISTER
Host
Interface
Disable
Bit 8
RW
REG[1Ah] POWER SAVE CONFIGURATION REGISTER
Power Save
Status RO
n/a
Bit 2
Bit 4
Screen 1 Pixel Panning
Bit 3
RW
Display FIFO Threshold
Memory Address Offset
Bit 10
REG[19h] CLOCK CONFIGURATION REGISTER
n/a
Bit 6
Bit 0
RW
Bit 0
Reserved
Cursor X Position
REG[18h] PIXEL PANNING REGISTER
Bit-per-pixel Select6
REG[0Eh] SCREEN 1 LINE COMPARE REGISTER 0
Bit 7
Bit 16
RW
n/a
Bit 0
Reserved
REG[23h] PERFORMANCE ENHANCEMENT REGISTER 1
Ink/Cursor Mode
RW
Bit 4
RW
Simultaneous Display 5
Option Select
Bit 8
Screen 2 Start Address
n/a
Bit 1
Look-Up Table Data
Bit 10
REG[1Eh] GENERAL IO PINS CONFIGURATION REGISTER 0
Hardware
Portrait
Mode
Enable
Bit 0
RW
Bit 0
RW
n/a
Bit 1
REG[17h] MEMORY ADDRESS OFFSET REGISTER 1
Reserved
REG[0Ah] VERTICAL NON-DISPLAY PERIOD REGISTER
VNDP
Status (RO)
Bit 13
Screen 2 Pixel Panning
RW
REG[09h] VERTICAL DISPLAY HEIGHT REGISTER 1
n/a
Bit 14
RW
RAS# Precharge 11 Timing
Look-Up Table Address
Bit 2
RW
Bit 0
Vertical Display Height = (REG + 1)
Bit 7
Bit 3
REG[16h] MEMORY ADDRESS OFFSET REGISTER 0
n/a
RW
Bit 3
Bit 4
REG[15h] SCREEN 2 DISPLAY START ADDRESS REGISTER 2
HRTC/FPLINE Pulse Width = 8(REG + 1)
n/a
Bit 0
Memory Address Offset
REG[07h] HRTC/FPLINE PULSE W IDTH REGISTER
HRTC
FPLINE
Polarity Slct Polarity Slct
Bit 15
Horizontal Non-Display Period = 8(REG + 1)
n/a
REG[06h] HRTC/FPLINE START POSITION R EGISTER
n/a
Bit 5
Bit 0
REG[05h] HORIZONTAL NON-DISPLAY PERIOD REGISTER
n/a
Bit 6
REG[14h] SCREEN 2 DISPLAY START ADDRESS REGISTER 1
n/a
Bit 1
Bit 1
RAS#-toCAS#
Delay 10
Display FIFO CPU to Memory Wait State
Disable
Bit 1
Bit 0
Screen 2 Start Address
REG[04h] HORIZONTAL DISPLAY W IDTH REGISTER
n/a
RW
Reserved
Screen 2 Start Address
Bit 7
MOD Rate
Bit 5
REG[22h] PERFORMANCE ENHANCEMENT REGISTER 0
Screen 1 Start Address
Revision Code
n/a
Notes
1 These bits are used to identify the SED1355. For the SED1355 the product code should be 3. The host interface
must be enabled before reading this register (set REG[1B] b7=0).
2 N/A bits should be written 0.
Reserved bits must be written 0.
Screen 1 Start Address
Bit 7
Page 1
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
98/09/15
SED1355F0A Register Summary
X23A-R-001-02
3 DRAM Refresh Rate Select
11 RAS Precharge Timing Select
DRAM Refresh
Rate Select Bits
[2:0]
Example Refresh
Rate for CLKI =
33MHz
CLKI Frequency
Divisor
Example period for
256 refresh cycles at
CLKI = 33MHz
REG[22h] Bits [3:2]
NRP
RAS Precharge Width (t RP)
00
2
2
1.5
1.5
000
64
520 kHz
0.5 ms
01
001
128
260 kHz
1 ms
10
1
1
010
256
130 kHz
2 ms
11
Reserved
Reserved
12 Ink/Cursor Start Address Encoding
011
512
65 kHz
4 ms
100
1024
33 kHz
8 ms
101
2048
16 kHz
16 ms
0
Display Buffer Size – 1024
110
4096
8 kHz
32 ms
n = 255...1
Display Buffer Size – (n x 8192)
111
8192
4 kHz
64 ms
Ink/Cursor Start Address Bits [7:0]
Start Address (Bytes)
4 Panel Data Width Selection
Panel Data Width Bits
[1:0]
Passive LCD Panel Data Width
Size
00
4-bit
9-bit
01
8-bit
12-bit
TFT Panel Data Width Size
10
16-bit
16-bit
11
Reserved
Reserved
5 Simultaneous Display Option Selection
Simultaneous Display Option Select Bits
[1:0]
Simultaneous Display Mode
00
Normal
01
Line Doubling
10
Interlace
11
Even Scan Only
6 Number of Bits-Per-Pixel Selection
Bit-Per-Pixel Select Bits [2:0]
Color Depth (Bit-Per-Pixel)
000
1 bpp
001
2 bpp
010
4 bpp
011
8 bpp
100
15 bpp
101
16 bpp
110-111
Reserved
7 PCLK Divide Selection
PCLK Divide Select Bits [1:0]
MCLK: PCLK Frequency Ratio
00
1: 1
01
2: 1
10
3: 1
11
4: 1
8 Suspend Refresh Selection
Suspend Refresh Select Bits [1:0]
DRAM Refresh Type
00
CAS-before-RAS (CBR) Refresh
01
Self-Refresh
1x
No Refresh
9 Minimum Memory Timing Selection
REG[22h] Bits [6:5]
Minimum Random Cycle
Width (tRC)
NRC
00
5
5
01
4
4
10
3
3
11
Reserved
Reserved
10 RAS#-to-CAS# Delay Timing Select
REG[22h] Bit 4
Page 2
RAS#-to-CAS# Delay (tRCD)
NRCD
0
2
2
1
1
1
98/09/15
SED1355 Embedded RAMDAC LCD/CRT Controller
1355CFG Configuration Program
Document Number: X23A-B-001-02
Copyright © 1998 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners
Microsoft and Windows are registered trademarks of Microsoft Corporation.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-B-001-02
1355CFG Configuration Program
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 3
Table of Contents
1355CFG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SED1355 Supported Evaluation Platforms . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1355CFG Configuration Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
General Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Memory Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Panel Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
CRT Page
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Initial Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Open Dialog Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Save As Dialog Box
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Comments
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Sample Program Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1355CFG Configuration Program
Issue Date: 98/10/30
SED1355
X23A-B-001-02
Page 4
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-B-001-02
1355CFG Configuration Program
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 5
List of Figures
Figure 1: General Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 2: Memory Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 3: Panel Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 4: CRT Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 5: Default Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1355CFG Configuration Program
Issue Date: 98/10/30
SED1355
X23A-B-001-02
Page 6
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-B-001-02
1355CFG Configuration Program
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 7
1355CFG
1355CFG is an interactive Windows® ‘9x program that calculates the SED1355 register values for
a user-defined LCD panel/CRT configuration. The SED1355 utilities can have their configurations
opened, changed, and saved, all from within 1355CFG.
1355CFG is designed to work with the SED1355 utilities, or any program designed by a
software/hardware developer using the Hardware Abstraction Layer (HAL) library. The configuration information can be saved directly into the utility or into a text header file for use by the
software/hardware developer.
Note
Seiko Epson does not assume liability for any damage done to the display device as a result of
software configuration errors.
SED1355 Supported Evaluation Platforms
1355CFG only runs on a PC system running Windows ‘9x.
1355CFG can edit the executable files for the following SED1355 evaluation platforms:
• PC system with an Intel 80x86 processor.
• M68332BCC (Business Card Computer) board, revision B, with a Motorola MC68332
processor.
• M68EC000IDP (Integrated Development Platform) board, revision 3.0, with a Motorola
M68EC000 processor.
• SH3-LCEVB board, revision B, with an Hitachi SH-3 HD6417780 processor.
Installation
Copy the file 1355CFG.EXE to a directory on your hard drive that is in the DOS path.
Usage
In Windows 95, double-click the following icon:
Or, at the Windows DOS Prompt, type 1355cfg.
1355CFG Configuration Program
Issue Date: 98/10/30
SED1355
X23A-B-001-02
Page 8
Epson Research and Development
Vancouver Design Center
1355CFG Configuration Pages
1355CFG provides a series of pages which can be selected by a tab at the top of the main window.
The pages are “General”, “Memory”, “Panel”, “CRT”, and “Default”. At the bottom of the window
are three buttons: Open, Save As, and Exit.
The basic procedure for using 1355CFG is as follows:
1.
OPEN the configuration values from a current utility (this step is optional).
2.
Change the configuration values as required (see each page description for configuration
details).
3.
SAVE the configuration values into the desired utilities, or into an ASCII header file. Each
utility must be configured seperately.
Note
1355CFG is designed to work with utilities programmed using a given version of the HAL. If the
configuration structure is of a different version, an error message is displayed.
SED1355
X23A-B-001-02
1355CFG Configuration Program
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 9
General Page
Figure 1: General Page
The General Page allows the user to select the following general platform settings:
General Page
Register Address
Starting address of the registers (in hexadecimal).
Memory Address
Starting address of the display buffer (in hexadecimal).
CPU Bus Width
Host CPU bus width (applicable only to PC).
ClkI
Clock frequency.
Bus Clk
Host bus clock frequency.
Also displayed is the memory clock frequency and the pixel clock frequencies for the following
modes: LCD, CRT , and simultaneous display. These clock values will change based on settings on
both the General Page and other configuration pages.
These clock frequencies are useful in determining why a particular display mode cannot be set. See
the SED1355 Hardware Functional Specification, document number X23A-A-001-xx, for more
details.
1355CFG Configuration Program
Issue Date: 98/10/30
SED1355
X23A-B-001-02
Page 10
Epson Research and Development
Vancouver Design Center
Memory Page
Figure 2: Memory Page
The Memory Page allows the user to select the following settings:
Memory Page
Timing (ns)
Access time for memory.
Memory Type
EDO or FPM.
WE# Control
2-CAS# or 2-WE#.
Refresh time (ms)
DRAM Refresh Rate (time for 256 refresh cycles).
Trc
Trp
Trac
Use the values in the DRAM specification. For the SDU1355
BOx Evaluation Board, use the values shown in the “Default”
column. The values in the “Default” column will change based on
the Memory Timing.
Suspend Mode Refresh Type of DRAM refresh used in suspend mode.
SED1355
X23A-B-001-02
1355CFG Configuration Program
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 11
Panel Page
Figure 3: Panel Page
The Panel Page allows the user to select the following settings:
Panel Page
Single/Dual
Select between a single and dual panel. If no panel exists, select
single.
Disable half frame
buffer
The half frame buffer is used only for dual panels. Disabling the
half frame buffer is not recommended as this will reduce the
display quality.
Mono/Color
Select between a monochrome and color panel. If no panel
exists, select color.
Format 2
Select color passive LCD panel format 2. See the SED1355
Hardware Functional Specification, document number
X23A-A-001-xx, for format 1/format 2 description.
STN/TFT
Select between a passive LCD and TFT/D-TFD panel.
EL
Enable EL panel support.
Panel Interface
Select panel interface width in bits. The bit width values will
change when selecting between STN and TFT/D-TFD panels.
FPline Polarity
Select the polarity of the FPLINE pulse.
FPframe Polarity
Select the polarity of the FPFRAME pulse.
Dimensions
Select the width and height of the panel in pixels.
Frame Rate
Select the desired frame rate.
1355CFG Configuration Program
Issue Date: 98/10/30
SED1355
X23A-B-001-02
Page 12
Epson Research and Development
Vancouver Design Center
CRT Page
Figure 4: CRT Page
The CRT Page allows the user to select the following settings:
CRT Page
SED1355
X23A-B-001-02
CRT Dimensions
Select the desired resolution. See “Comments” on page 17 if the
desired CRT dimensions are grayed out.
CRT Frame Rate
Select the desired frame rate. See “Comments” on page 17 to
determine valid CRT frame rates.
Simultaneous Display
Options
For simultaneous display only. Will be grayed out if
simultaneous display is not supported based on the other
configuration settings. For summary of Simultaneous Display
options see the Hardware Functional Specification, document
number X23-A-A-001-xx.
1355CFG Configuration Program
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 13
Initial Page
Figure 5: Default Page
The Default Page allows the user to select the following settings:
Initial Page
Display
Select the default display device. Three display modes (LCD,
CRT, and Simultaneous) are saved, but the SED1355 software
initializes the registers based on the default mode.
Color Depth
Select the default color depth.
1355CFG Configuration Program
Issue Date: 98/10/30
SED1355
X23A-B-001-02
Page 14
Epson Research and Development
Vancouver Design Center
Open Dialog Box
When the “OPEN” button is pressed on the main window, the Open Dialog Box is shown. 1355CFG
will read the configuration values from a specific EXE file for Intel platforms, and from a specific
S9 file for non-Intel platforms.The file must have been compiled using a valid version of the 1355
HAL library.
SED1355
X23A-B-001-02
1355CFG Configuration Program
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 15
Save As Dialog Box
When the “Save As” button is pressed on the main window, 1355CFG checks for any invalid configuration values and shows any appropriate warning or error messages. If it is possible to save the
values, the Save As Dialog Box is shown.
The configuration values can be saved to a specific EXE file for Intel platforms, and to a specific S9
file for non-Intel platforms. The file must have been compiled using a valid version of the 1355 HAL
library. The configuration values can also be saved to an ASCII header file (ie. 1355reg.h) for use
by the software/hardware developer.
1355CFG Configuration Program
Issue Date: 98/10/30
SED1355
X23A-B-001-02
Page 16
Epson Research and Development
Vancouver Design Center
Example
Configure for an 8-bit color single passive 640x480 LCD panel and the SDU1355 BOC Evaluation
Board on a PC:
General Page
Register Address
0xE00000
Memory Address
0xC00000
CPU Bus Width
16 bit
ClkI
25175 kHz
Bus Clk
8000 kHz
Timing (ns)
60 ns
Memory Type
EDO
WE# Control
2-CAS#
Refresh time (ms)
32 ms
Trc
Trp
Trac
104 ns
40 ns
60 ns
Suspend Mode
Refresh
CAS before RAS
Single/Dual
Single
Disable half frame
buffer
(unchecked)
Mono/Color
Color
Format 2
(unchecked)
STN/TFT
STN
EL
(unchecked)
Panel Interface
8 bit
FPline Polarity
Hi
FPframe Polarity
Hi
Dimensions
640 x 480
Frame Rate
60
Memory Page
Panel Page
CRT Page
CRT Dimensions
640 x 480
CRT Frame Rate
60
Simultaneous Display
Normal
Options
Default Page
Display
Panel
Color Depth
16 bpp
Note
The above configuration also supports simultaneous display and CRT only modes.
SED1355
X23A-B-001-02
1355CFG Configuration Program
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 17
Comments
• It is assumed that the 1355CFG user is familiar with SED1355 hardware and software. Refer to
the SED1355 Functional Hardware Specification, document number X23A-A-001-xx, and the
SED1355 Programming Notes and Examples, document number X23A-G-003-xx for details.
• 1355CFG verifies that the given configuration meets the limitations in the hardware specification. Part of this verification process is as follows:
1.
The divide ratio for the source clock/MClk is determined based on Table 14-3: Example
Frame Rates with Ink Disabled from the Functional Hardware Specification. According to
this table, MClk cannot exceed 40 MHz for 50ns EDO-DRAM, MClk cannot exceed 33
MHz for 60ns EDO-DRAM, and MClk cannot exceed 25 MHz for 60ns FPM-DRAM. If
MClk exceeds the maximum value, the MCLK value is set to the source clock divided by
two (MClk = source clock / 2). Otherwise the MCLK value is set to the source clock
(MClk = source clock). 1355CFG shows the MClk value on the General Page.
2.
The divide ratio for MClk/PClk is determined based on Table 14-1: Maximum PCLK Frequency with EDO-DRAM and Table 14-2: Maximum PCLK Frequency with FPM-DRAM.
Once this ratio is determined, PClk = MClk / ratio. Note that there are two PClk divide ratios based on the three display modes: panel, CRT, and simultaneous display (CRT and simultaneous display use the same ratio). 1355CFG shows the PClk values for these three
modes on the General Page.
3.
The HNDP and VNDP values are calculated based on the desired frame rate for each of
the three modes (panel, CRT, simultaneous), the display’s HDP (X resolution), VDP (Y
resolution), and maximum PCLK as calculated in step 3.
PCLK
FrameRate = ----------------------------------------------------------------------------------------( HDP + HNDP ) × ( VDP + VNDP )
4.
If it is not possible to reach the desired frame rate within 5%, an error message is shown
when saving the configuration.
• When configuring either the CRT or TFT/D-TFD panel, the PClk must be the same as the
required VESA frequency for the given VESA mode. The following VESA modes are supported:
Resolution
Frame
Rate (Hz)
640x480
60
25.175
50ns EDO, 60ns EDO,
70ns EDO, 60ns FPM
72
31.500
50ns EDO, 60ns EDO
75
31.500
50ns EDO, 60ns EDO
800x600
PCLK (MHz) Supported DRAM Types
85
36.000
50ns EDO
56
36.000
50ns EDO
60
40.000
50ns EDO
• 1355CFG does not support 50ns FPM-DRAM.
• 1355CFG programs TFT/D-TFD panels with the same VESA timings as a CRT, so the CRT
restrictions shown in the hardware specification also apply to TFT/D-TFD panels. Consequently
for TFT/D-TFD panels, use the CRT frame rate and CRT PCLK as described above.
• For simultaneous display, select a CRT VESA mode, and use the CRT’s frame rate for the
panel’s frame rate.
1355CFG Configuration Program
Issue Date: 98/10/30
SED1355
X23A-B-001-02
Page 18
Epson Research and Development
Vancouver Design Center
Sample Program Messages
ERROR: Panel frame rate must be greater than zero
Select an appropriate panel frame rate as recommended in the panel specifications.
ERROR: Unable to save current settings
Could not save configuration values. The reason why is generally given before this message is
shown.
ERROR: Invalid clock frequency selected
The ClkI frequency is either too low or too high.
ERROR: Max. clock for 50ns FPM is unspecified
1355CFG does not support 50ns FPM-DRAM.
WARNING: Cannot set panel display mode
This message is shown if the configuration settings do not meet the hardware specifications, or if the
desired frame rate cannot be reached within 5%. See “Comments” on page 17 for more information.
WARNING: Cannot set simul display mode
This message is shown if the configuration settings do not meet the hardware specifications, or if the
desired frame rate cannot be reached within 5%. See “Comments” on page 17 for more information.
WARNING: Cannot set CRT display mode
This message is shown if the configuration settings do not meet the hardware specifications, or if the
desired frame rate cannot be reached within 5%. See “Comments” on page 17 for more information.
-PClk too slow to support 640 x 480
This message is shown after the “Cannot set ??? display mode” message. See “Comments” on page
17 to adjust the PClk.
-PClk too slow to support 800 x 600
This message is shown after the “Cannot set ??? display mode” message. See “Comments” on page
17 to adjust PClk.
Notice: Invalid clock selected for VESA frequencies. The monitor may
not sync!
This message is shown in the CRT Page when the PClk is not set to a standard VESA frequency. See
“Comments” on page 17 to adjust the PClk.
ERROR: Unknown HAL version.
When reading from or writing to a SED1355 utility, 1355CFG could not find the start of a valid
configuration table.
ERROR: Unable to open <filename>
Possible cause - no HAL information
1355CFG could not find the HAL configuration table.
ERROR: encountered while reading .S9 file.
The S9 file is corrupted.
ERROR: while attempting to write .S9 file.
The S9 file is corrupted.
SED1355
X23A-B-001-02
1355CFG Configuration Program
Issue Date: 98/10/30
SED1355 Embedded RAMDAC LCD/CRT Controller
1355SHOW Demonstration Program
Document Number: X23A-B-002-04
Copyright © 1998 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-B-002-04
1355SHOW Demonstration Program
Issue Date: 98/10/29
Epson Research and Development
Vancouver Design Center
Page 3
1355SHOW
1355SHOW is designed to demonstrate and test some of the SED1355 display capabilities. The
program can cycle through all the color depths and display a pattern showing all available colors, or
the user can specify a color depth and display configuration.
The 1355SHOW demonstration program must be configured and/or compiled to work with your
hardware platform. The program 1355CFG.EXE can be used to configure 1355SHOW. Consult the
1355CFG users guide, document number X23A-B-001-xx, for more information on configuring
SED1355 utilities.
This software is designed to work in both embedded and personal computer (PC) environments. For
the embedded environment, it is assumed that the system has a means of downloading software from
the PC to the target platform. Typically this is done by serial communications, where the PC uses a
terminal program to send control commands and information to the target processor. Alternatively,
the PC can program an EPROM, which is then placed in the target platform. Some target platforms
can also communicate with the PC via a parallel port connection, or an Ethernet connection.
SED1355 Supported Evaluation Platforms
1355SHOW supports the following SED1355 evaluation platforms:
• PC system with an Intel 80x86 processor.
• M68332BCC (Business Card Computer) board, revision B, with a Motorola MC68332
processor.
• M68EC000IDP (Integrated Development Platform) board, revision 3.0, with a Motorola
M68EC000 processor.
• SH3-LCEVB board, revision B, with an Hitachi SH-3 HD6417780 processor.
Installation
PC platform: copy the file 1355SHOW.EXE to a directory that is in the DOS path on your hard
drive.
Embedded platform: download the program 1355SHOW to the system.
1355SHOW Demonstration Program
Issue Date: 98/10/29
SED1355
X23A-B-002-04
Page 4
Epson Research and Development
Vancouver Design Center
Usage
PC platform: at the prompt, type
1355show [b=??] [/a] [/crt] [/g] [/lcd] [/noinit] [/p] [/read] [/s]
[/?].
Embedded platform: execute 1355show and at the prompt, type the command line argument.
Where:
b=??
starts 1355SHOW at a user specified bit-per-pixel (bpp)
level, where ?? can be: 1, 2, 4, 8, 15, or 16
/a
automatically cycles through all video modes
/crt
displays the image on the CRT
/g
shows grid on the image
/lcd
displays the image on the LCD panel
/noinit
bypasses register initialization
/p
draws the image in portrait mode
/read
after drawing the image, continually read from the screen
(for testing purposes)
/s
displays vertical stripe pattern
/?
displays the help screen
Note
Pressing the ESC key will exit the program.
1355SHOW Examples
The 1355SHOW demonstration program is designed to both demonstrate and test some of the
features of the SED1355. Some examples follow showing how to use the program in both instances.
Using 1355SHOW For Demonstration
1.
To show color patterns which must be manually stepped through all bit-per-pixel modes, type
the following:
1355SHOW
The program will display 16 bit-per-pixel mode. Press any key to go to the next screen. The
program will display 15 bit-per-pixel mode. Once all screens are shown the program exits. To
exit the program immediately press ESC.
2.
To show color patterns which automatically step through all bit-per-pixel modes, type the
following:
1355SHOW /a
The program will display 16 bit-per-pixel mode. Each screen is shown for approximately 1
second, then the next screen is automatically shown. The program exits after the last screen is
shown. To exit the program immediately press CTRL+BREAK.
SED1355
X23A-B-002-04
1355SHOW Demonstration Program
Issue Date: 98/10/29
Epson Research and Development
Vancouver Design Center
3.
Page 5
To show a color pattern for a specific bit-per-pixel mode, type the following:
1355SHOW b=[mode]
where mode = 1, 2, 4, 8, 15, or 16.
The program will display the requested screen and then exit.
4.
To show the color patterns in portrait mode, type the following:
1355SHOW /p
The program will display 16 bit-per-pixel mode. Press any key to go to the next screen. The
program will next display 15 bit-per-pixel mode and then 8 bit-per-pixel mode. Since portrait
mode is limited to 8, 15, and 16 bit-per-pixel mode the program exits. To exit the program immediately press ESC.
The “/p” switch can be used in combination with other command line switches.
5.
To show solid vertical stripes, type the following:
1355SHOW /s
The program will display 16 bit-per-pixel mode. Press any key to go to the next screen. The
program will display 15 bit-per-pixel mode. Once all screens are shown the program exits. To
exit the program immediately press ESC.
The “/s” switch can be used in combination with other command line switches.
Using 1355SHOW For Testing
1.
To show a test grid over the color pattern, type the following:
1355SHOW b=8 /g
The program will display the 8 bit-per-pixel color pattern overlaid with a one pixel wide white
grid and then exit. The grid makes it obvious if the image is shifted or if pixels are missing.
Note the grid is not aligned with the color pattern, therefore the color boxes will not match the
grid boxes.
The “/g” switch can be used in combination with other command line switches.
2.
To test background memory reads, type the following:
1355SHOW b=16 /read
The program will test screen reads. If there is a problem with memory access, the displayed
pattern will appear different than when the “/read” switch is not used. If there is a problem,
check the configuration parameters of 1355SHOW using the utility 1355CFG. See the
1355CFG user guide, document number X23A-B-001-xx, for more information.
The “/read” switch should be used in combination with the “b=” setting, otherwise the test will
always start with the 16 bit-per-pixel screen. To exit the program after using “/read”, press
ESC and wait for a couple of seconds (the keystroke is checked after reading a full screen).
1355SHOW Demonstration Program
Issue Date: 98/10/29
SED1355
X23A-B-002-04
Page 6
Epson Research and Development
Vancouver Design Center
Comments
• 1355SHOW cannot show a greater color depth than the display allows.
• Portrait mode is available only for 8, 15, and 16 bit-per-pixel.
• When using a PC with the SDU1355 evaluation board, the PC must not have more than 12M
bytes of system memory.
• 1355SHOW uses the panel color setup to determine whether to display a mono or color image on
both the panel and the CRT. When editing in 1355CFG with CRT enabled and panel disabled,
select “Color” from the “Panel” dialog box if you want the CRT to show color.
• For simultaneous display, select both “/lcd” and “/crt”.
• If the “b=” option is not used, 1355SHOW will cycle through all available bit-per-pixel modes.
SED1355
X23A-B-002-04
1355SHOW Demonstration Program
Issue Date: 98/10/29
Epson Research and Development
Vancouver Design Center
Page 7
Program Messages
ERROR: Could not initialize device.
These messages generally mean that the given hardware/software setup violates the timing limitations described in the 1355 Hardware Functional Specification, document number X23A-A-001-xx.
ERROR: Unknown command line argument.
An invalid command line argument was entered. Refer to the help screen or documentation for valid
command line arguments.
ERROR: Too many devices registered.
There are too many display devices attached to the HAL. The HAL currently supports only one
device.
ERROR: Could not register SED1355 device.
A 1355 device was not found at the configured addresses. Check the configuration address using the
1355CFG configuration program.
ERROR: Did not find a 1355 device.
The HAL was unable to read the revision code register on the SED1355. Ensure that the SED1355
hardware is installed and that the hardware platform has been set up correctly.
ERROR: Continual screen read will not work with the /a switch.
The continual screen read function reads one screen indefinitely, so it is not possible to automatically
cycle through the video modes.
WARNING: b= option used with /noinit, so bit-per-pixel and display
memory will NOT be changed.
The b= option requests that registers be changed for a given bit-per-pixel mode, while the /noinit
option requests the opposite. To resolve this contradiction 1355SHOW will not change either the
registers or the display memory. Consequently “1355SHOW b=?? /noinit” is only useful for continually reading the display memory.
UNSUPPORTED MODE: Cannot show ?? bpp in portrait mode.
Only 8, 15, 16 bit-per-pixel modes are supported in portrait mode.
ERROR: Could not change to ?? bit-per-pixel.
The HAL library detected that the requested bit-per-pixel mode will violate the hardware specifications for clocks. To reprogram the clocks, run 1355CFG and select the desired bit-per-pixel mode.
1355SHOW Demonstration Program
Issue Date: 98/10/29
SED1355
X23A-B-002-04
Page 8
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-B-002-04
1355SHOW Demonstration Program
Issue Date: 98/10/29
SED1355 Embedded RAMDAC LCD/CRT Controller
1355SPLT Display Utility
Document Number: X23A-B-003-02
Copyright © 1998 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-B-003-02
1355SPLT Display Utility
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 3
1355SPLT
1355SPLT demonstrates SED1355 split screen capability by showing two different areas of
display memory on the screen simultaneously. Screen 1 shows horizontal bars and Screen 2 shows
vertical bars.
Screen 1 memory is located at the start of the display buffer. Screen 2 memory is located immediately after Screen 1 in the display buffer. On user input, or elapsed time, the line compare register
value is changed to adjust the amount of area displayed on either screen. The result is a movement
up or down of screen 2 on the display.
The 1355SPLT display utility must be configured and/or compiled to work with your hardware
platform. The program 1355CFG.EXE can be used to configure 1355SPLT. Consult the 1355CFG
users guide, document number X23A-B-001-xx, for more information on configuring SED1355
utilities.
This software is designed to work in both embedded and personal computer (PC) environments. For
the embedded environment, it is assumed that the system has a means of downloading software from
the PC to the target platform. Typically, this is done by serial communications. The PC uses a
terminal program to send control commands and information to the target processor. Alternatively,
the PC can program an EPROM, which is then placed in the target platform. Some target platforms
can also communicate with the PC via a parallel port connection, or an Ethernet connection.
SED1355 Supported Evaluation Platforms
1355SPLT supports the following SED1355 evaluation platforms:
• PC system with an Intel 80x86 processor.
• M68332BCC (Business Card Computer) board, revision B, with a Motorola MC68332
processor.
• M68EC000IDP (Integrated Development Platform) board, revision 3.0, with a Motorola
M68EC000 processor.
• SH3-LCEVB board, revision B, with an Hitachi SH-3 HD6417780 processor.
Installation
PC platform: copy the file 1355SPLT.EXE to a directory that is in the DOS path on your hard drive.
Embedded platform: download the program 1355SPLT to the system.
1355SPLT Display Utility
Issue Date: 98/10/30
SED1355
X23A-B-003-02
Page 4
Epson Research and Development
Vancouver Design Center
Usage
PC platform: at the prompt, type 1355splt [/a] [/?].
Embedded platform: execute 1355splt and at the prompt, type the command line argument.
Where:
no argument
enables manual split screen operation
/a
enables automatic split screen operation
/?
displays the help screen
The following keyboard commands are for navigation within the program.
Manual mode:
↑
moves Screen 2 up one line
↓
moves Screen 2 down one line
CTRL-↑
moves Screen 2 up several lines
CTRL-↓
moves Screen 2 down several lines
HOME
Screen 2 moved up as high as possible
END
Screen 2 moved down as low as possible
Automatic and Manual modes:
b
changes the color depth (bit-per-pixel)
ESC
exits 1355SPLT
1355SPLT Example
1.
Type “1355splt /a” to automatically move the split screen.
2.
Press "b" to change the bit-per-pixel value from 16 to 15 bit-per-pixel.
3.
Repeat step 2 for the remaining bit-per-pixel color depths: 8, 4, 2, and 1.
4.
Press <ESC> to exit the program.
Comments
• When using a PC with the SDU1355 evaluation board, the PC must not have more than 12M
bytes of system memory.
SED1355
X23A-B-003-02
1355SPLT Display Utility
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 5
Program Messages
ERROR: Did not find a 1355 device.
The HAL was unable to read the revision code register on the SED1355. Ensure that the SED1355
hardware is installed and that the hardware platform has been set up correctly.
ERROR: Too many devices registered.
There are too many display devices attached to the HAL. The HAL currently supports only one
device.
ERROR: Could not register SED1355FOA device.
A SED1355 device was not found at the configured addresses. Check the configuration address
using the 1355CFG configuration program.
ERROR: Could not set ?? bit-per-pixel display mode.
This message generally means that the given hardware/software setup violates the timing limitations
described in the SED1355 Hardware Functional Specification, document number X23A-A-001-xx.
1355SPLT Display Utility
Issue Date: 98/10/30
SED1355
X23A-B-003-02
Page 6
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-B-003-02
1355SPLT Display Utility
Issue Date: 98/10/30
SED1355 Embedded RAMDAC LCD/CRT Controller
1355VIRT Display Utility
Document Number: X23A-B-004-03
Copyright © 1998 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-B-004-03
1355VIRT Display Utility
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 3
1355VIRT
1355VIRT demonstrates the virtual display capability of the SED1355. A virtual display is where
the image to be displayed is larger than the physical display device (CRT or LCD). 1355VIRT uses
panning and scrolling to allow the display device to show a “window” into the entire image.
The 1355VIRT display utility must be configured and/or compiled to work with your hardware
platform. The program 1355CFG.EXE can be used to configure 1355VIRT. Consult the 1355CFG
users guide, document number X23A-B-001-xx, for more information on configuring SED1355
utilities.
This software is designed to work in both embedded and personal computer (PC) environments. For
the embedded environment, it is assumed that the system has a means of downloading software from
the PC to the target platform. Typically this is done by serial communications, where the PC uses a
terminal program to send control commands and information to the target processor. Alternatively,
1355VIRT Display Utility
Issue Date: 98/10/30
SED1355
X23A-B-004-03
Page 4
Epson Research and Development
Vancouver Design Center
Usage
PC platform: at the prompt, type 1355virt [w=??] [/a] [/?].
Embedded platform: execute 1355virt and at the prompt, type the command line argument.
Where:
no argument
panning and scrolling is performed manually
w=??
for manual mode, specifies the width of the virtual
display which must be a multiple of 8 and less than
2048 (the default width is double the physical panel
width); the maximum height is based on the display
memory
/a
panning and scrolling is performed automatically
/?
displays the help screen
The following keyboard commands are for navigation within the program.
Manual mode:
↑
scrolls up
↓
scrolls down
←
pans to the left
→
pans to the right
CTRL-↑
scrolls up several lines
CTRL-↓
scrolls down several lines
CTRL-←
pans to the left several lines
CTRL-→
pans to the right several lines
HOME
moves the display screen so that the upper right corner
of the virtual screen shows in the display
END
moves the display screen so that the lower left corner
of the virtual screen shows in the display
Automatic and Manual modes:
SED1355
X23A-B-004-03
b
changes the color depth (bit-per-pixel)
ESC
exits 1355VIRT
1355VIRT Display Utility
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 5
1355VIRT Example
1.
Type "1355virt /a" to automatically pan and scroll.
2.
Press "b" to change the bit-per-pixel value from 16 to 15 bit-per-pixel.
3.
Repeat step 2 for the following bit-per-pixel values:
16, 15, 8, 4, 2, and 1.
4.
Press <ESC> to exit the program.
Comments
• When using a PC with the SDU1355 evaluation board, the PC must not have more than 12M
bytes of system memory.
Program Messages
ERROR: Did not find a 1355 device.
The HAL was unable to read the revision code register on the SED1355. Ensure that the SED1355
hardware is installed and that the hardware platform has been set up correctly.
ERROR: Too many devices registered.
There are too many display devices attached to the HAL. The HAL currently supports only one
device.
ERROR: Could not register SED1355FOA device.
A 1355 device was not found at the configured addresses. Check the configuration address using the
1355CFG configuration program.
ERROR: Not enough display buffer memory for ?? BPP.
There was not enough memory for a virtual screen.
1355VIRT Display Utility
Issue Date: 98/10/30
SED1355
X23A-B-004-03
Page 6
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-B-004-03
1355VIRT Display Utility
Issue Date: 98/10/30
SED1355 Embedded RAMDAC LCD/CRT Controller
1355PLAY Diagnostic Utility
Document Number: X23A-B-005-03
Copyright © 1998 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-B-005-03
1355PLAY Diagnostic Utility
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 3
1355PLAY
1355PLAY is a diagnostic utility which allows the user to read/write to all the SED1355 Registers,
Look-Up Tables and Display Buffer. 1355PLAY is similar to the DOS DEBUG program;
commands are received from the standard input device, and output is sent to the standard output
device (console for Intel, terminal for embedded platforms). This utility requires the target platform
to support standard IO (stdio).
1355PLAY commands can be entered interactively by a user, or be executed from a script file.
Scripting is a powerful feature which allows command sequences to be used repeatedly without
re-entry.
The 1355PLAY diagnostic utility must be configured and/or compiled to work with your hardware
platform. The program 1355CFG.EXE can be used to configure 1355PLAY. Consult the 1355CFG
users guide, document number X23A-B-001-xx, for more information on configuring SED1355
utilities.
This software is designed to work in both embedded and personal computer (PC) environments. For
the embedded environment, it is assumed that the system has a means of downloading software from
the PC to the target platform. Typically this is done by serial communications, where the PC uses a
terminal program to send control commands and information to the target processor. Alternatively,
the PC can program an EPROM, which is then placed in the target platform. Some target platforms
can also communicate with the PC via a parallel port connection, or an Ethernet connection.
SED1355 Supported Evaluation Platforms
1355PLAY supports the following SED1355 evaluation platforms:
• PC system with an Intel 80x86 processor.
• M68332BCC (Business Card Computer) board, revision B, with a Motorola MC68332
processor.
• M68EC000IDP (Integrated Development Platform) board, revision 3.0, with a Motorola
M68EC000 processor.
• SH3-LCEVB board, revision B, with an Hitachi SH-3 HD6417780 processor.
Installation
PC platform: copy the file 1355PLAY.EXE to a directory that is in the DOS path on your hard
drive.
Embedded platform: download the program 1355PLAY to the system.
1355PLAY Diagnostic Utility
Issue Date: 98/10/30
SED1355
X23A-B-005-03
Page 4
Epson Research and Development
Vancouver Design Center
Usage
PC platform: at the prompt, type 1355play [/?].
Embedded platform: execute 1355play and at the prompt, type the command line argument.
Where: /? displays program version information.
The following commands are valid within the 1355PLAY program.
b 8|16
- Sets the ISA bus to 8 or 16 bits.
- Only sets up the PAL on the SDU1355 evaluation
board. There is no readback capability.
- Only supported on a SDU1355 evaluation board for
the PC platform. Switch 1-1 on the ealuation board
must be set to the same bus width as used with this
command.
f[w] addr1 addr2 data . . .
- Fills bytes or words [w] from address 1 to address 2
with the data specified.
- Data can be multiple values (e.g. F 0 20 1 2 3 4
fills 0 to 0x20 with a repeating pattern of 1 2 3 4).
h [lines]
- Halts after lines of display. This feature halts the
display during long read operations to prevent data
from scrolling off the display. Similar to the DOS
MORE command.
- Set to 0 to disable this feature.
i [LCD] [CRT]
- Initializes the chip with the specified configuration.
The configuration is embedded in the 1355PLAY
utility and can be changed using the 1355CFG utility.
See the 1355CFG guide, document number
X23A-B-001-xx, for instructions on changing the
configuration.
- If the output device is specified, the user can select
LCD, CRT, or both devices.
l index [red green blue]
- Reads/writes Look-Up Table (LUT) values.
- Writes data to the LUT[index] when data is specified.
- Reads the LUT[index] when the data is not specified.
la
- Reads all LUT values.
m [bpp]
- Reads current mode information.
- Sets the color depth (bpp) if “bpp” is specified.
SED1355
X23A-B-005-03
1355PLAY Diagnostic Utility
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
p 1|0
Page 5
- Set power mode (hardware suspend).
1 = set hardware suspend.
0 = reset hardware suspend.
- This command is only supported on a SDU1355
evaluation board for the PC platform.
q
- Quits the 1355PLAY utility.
r[w] addr [count]
- Reads number of bytes or words [w] from the address
specified by “addr”. If “count” is not specified, then
16 bytes/words are read.
v
- Calculates the frame rate from VNDP count (PC
platform only).
w[w] addr data . . .
- Writes bytes or words [w] of data to the address
specified by “addr”.
- Data can be multiple values (e.g. W 0 1 2 3 4
writes the byte values 1 2 3 4 starting at address 0).
x[w] index [data]
- Reads/writes bytes or words [w] to/from the registers.
- Writes data to REG[index] when “data” is specified.
- Reads data from REG[index] when “data” is not
specified.
- Some platforms may provide upredictable results
when non-aligned word addresses are entered.
xa
- Reads all registers.
?
- Displays Help information.
1355PLAY Example
1.
Type "1355PLAY" to start the program.
2.
Type "?" for help.
3.
Type "i" to initialize the registers.
4.
Type "xa" to display the contents of the registers.
5.
Type "x 5" to read register 5.
6.
Type "x 3 10" to write 10h to register 3.
7.
Type "f 0 ffff aa" to fill the first FFFFh bytes of the display buffer with AAh.
8.
Type "f 0 1fffff aa" to fill 2M bytes of the display buffer with AAh.
9.
Type "r 0 100" to read the first 100h bytes of the display buffer.
10. Type "q" to exit the program.
1355PLAY Diagnostic Utility
Issue Date: 98/10/30
SED1355
X23A-B-005-03
Page 6
Epson Research and Development
Vancouver Design Center
Scripting
1355PLAY can be driven by a script file. This is useful when:
• there is no display output and a current register status is required.
• various registers must be quickly changed to view results.
A script file is an ASCII text file with one 1355PLAY command per line. All scripts must end with
a “q” (quit) command.
On a PC platform, a typical script command line might be:
“1355PLAY < dumpregs.scr > results.”
This causes the file “dumpregs.scr” to be interpreted as commands by 1355PLAY and the results to
be sent to the file “results.”
Example: Create an ASCII text file that contains the commands i, xa, and q.
; This file initializes the SED1355 and reads the registers.
; Note: after a semicolon (;), all characters on a line are ignored.
; Note: all script files must end with the “q” command.
i
xa
q
Comments
• All numeric values are considered to be hexadecimal unless identified otherwise. For example,
10 = 10h = 16 decimal; 10t = 10 decimal; 010b = 2 decimal.
• Redirecting commands from a script file (PC platform) allows those commands to be executed as
though they were typed.
• When using a PC with the SDU1355 evaluation board, the PC must not have more than 12M
bytes of system memory.
SED1355
X23A-B-005-03
1355PLAY Diagnostic Utility
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 7
Program Messages
WARNING: Did not find a 1355 device.
The HAL was unable to read the revision code register on the SED1355. Ensure that the SED1355
hardware is installed and that the hardware platform has been set up correctly.
ERROR: Failed to change to ?? mode.
Could not change to CRT, LCD, or SIMUL mode. This message generally means that the given
hardware/software setup violates the timing limitations described in the SED1355 Hardware
Functional Specification, document number X23A-A-001-xx.
ERROR: Could not change to ?? bit-per-pixel.
This message generally means that the given hardware/software setup violates the timing limitations
described in the SED1355 Hardware Functional Specification, document number X23A-A-001-xx.
ERROR: Too many devices registered.
There are too many display devices attached to the HAL. The HAL currently supports only one
device.
ERROR: Could not register SED1355FOA device.
A SED1355 device was not found at the configured addresses. Check the configuration address
using the 1355CFG configuration program.
ERROR: Insufficient memory for ?? bit-per-pixel.
The given display resolution requires a larger display buffer than is available to store the image.
Either increase the amount of display buffer or select a lower color depth (bpp).
WARNING: Clocks are too fast for given mode.
This message is only shown if the “m” command was entered and the MCLK/PCLK frequencies
violated the timings in the SED1355 Hardware Functional Specification, document number X23AA-001-xx.
1355PLAY Diagnostic Utility
Issue Date: 98/10/30
SED1355
X23A-B-005-03
Page 8
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-B-005-03
1355PLAY Diagnostic Utility
Issue Date: 98/10/30
SED1355 Embedded RAMDAC LCD/CRT Controller
1355BMP Demonstration Program
Document Number: X23A-B-006-03
Copyright © 1998 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Page 0
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-B-006-03
1355BMP Demonstration Program
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 1
1355BMP
1355BMP is a demonstration utility used to show the SED1355 display capabilities by rendering
bitmap images on the display. The program will display any bitmap in Windows BMP file format
and then exit. 1355BMP also loads images to demonstrate the hardware cursor and ink layer.
1355BMP is designed to operate on a personal computer (PC) in the DOS environment only. Other
embedded platforms are not supported due to the possible lack of system memory or structured file
system.
The 1355BMP demonstration utility must be configured and/or compiled to work with your
hardware configuration. The program 1355CFG.EXE can be used to configure 1355BMP. Consult
the 1355CFG users guide, document number X23A-B-001-xx, for more information on configuring
SED1355 utilities.
SED1355 Supported Evaluation Platforms
1355BMP supports the following SED1355 evaluation platforms:
• PC system with an Intel 80x86 processor.
Note
The 1355BMP source code may be modified by the OEM to support other evaluation platforms.
Installation
Copy the file 1355BMP.EXE to a directory that is in the DOS path on your hard drive.
Usage
At the prompt, type 1355bmp bmpfile [t=reg | cursor | ink] [x=n y=n]
[/buffer] [/crt] [/lcd] [/mouse] [/noclear] [/noinit] [/p] [/v]
[/?].
Where:
1355BMP Demonstration Program
Issue Date: 98/10/30
bmpfile
filename of a windows format bmp image
t=??
reg:
regular display image
cursor: hardware cursor image
ink:
ink layer image
x=n
n = starting cursor x position (default position = 0)
y=n
n = starting cursor y position (default position = 0)
/buffer
enable double buffering (image not displayed until completely loaded
in memory)
/crt
displays the image on a CRT
/lcd
displays the image on an LCD panel
SED1355
X23A-B-006-03
Page 2
Epson Research and Development
Vancouver Design Center
/mouse
use mouse to move hardware cursor (press ESC to exit program)
/noclear
don’t clear display buffer memory
/noinit
skips register initialization
/p
portrait mode (not available for hardware cursor or ink layer images)
/v
verbose mode (provides information about the displayed images)
/?
displays the Help screen
Note
1355BMP will automatically finish execution and return to the prompt.
Hardware Cursor/Ink Layer
1355BMP requires the BMP images for the Hardware Cursor and the Ink Layer to be stored in
specific formats. The Hardware Cursor BMP image must have a color depth of four bit-per-pixel and
be 64x64 pixels in resolution. The Ink Layer BMP image must have a color depth of four bit-perpixel and be the same resolution as the displayed image.
Both images are stored at a color depth of four bit-per-pixel allowing easy editing and saving in most
paint programs. To allow the two bit-per-pixel Hardware Cursor and Ink Layer to use the four bitper-pixel images, they are translated to two bit-per-pixel as in the following table.
Table 1: 4 Bpp to 2 Bpp Translation
Image Color
SED1355
X23A-B-006-03
Displayed Color
white
white
black
black
red
invert
any other color
transparent
1355BMP Demonstration Program
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 3
1355BMP Examples
To display a bmp image on a CRT, type the following:
1355BMP bmpfile.bmp /crt
To display a bmp image on an LCD, type the following:
1355BMP bmpfile.bmp /lcd
To display a bmp image on an LCD in portrait mode, type the following:
1355BMP bmpfile.bmp /lcd /p
To load a bmp image and a hardware cursor image on an LCD, type the following:
1355BMP /lcd bmpfile.bmp
1355BMP t=cursor /noinit arrow.bmp
To control the cursor with the mouse, include the “/mouse” option when loading the cursor image.
Comments
• 1355BMP displays only Windows BMP format images.
• The PC must not have more than 12M bytes of memory when used with the SDU1355 evaluation
board.
• A 24-bit true color bitmap will be displayed at a color depth of 16 bit-per-pixel.
• Only the green component of the image will be seen on a monochrome display.
• Prior to selecting the “/mouse” option, a valid mouse driver must be loaded.
• If x and y coordinates are not specified for the Hardware Cursor, the Hardware Cursor will be
displayed starting in the top left corner (position x=0,y=0).
1355BMP Demonstration Program
Issue Date: 98/10/30
SED1355
X23A-B-006-03
Page 4
Epson Research and Development
Vancouver Design Center
Program Messages
ERROR: Could not initialize device.
The given hardware/software setup violates the timing specification as described in the SED1355
Hardware Functional Specification, document number X23A-A-001-xx.
ERROR: Too many devices registered.
There are too many display devices attached to the HAL. The HAL currently supports only one
device.
ERROR: Could not register SED1355F0A device.
A 1355 device was not found at the configured addresses. Check the configuration address using the
1355CFG configuration program.
ERROR: Did not detect SED1355.
The HAL was unable to read the revision code register on the SED1355. Ensure that the SED1355
hardware is installed and that the hardware platform has been set up correctly.
ERROR: Insufficient memory for ?? bit-per-pixel.
The given display resolution requires more memory than is available to store one complete image.
Either increase the amount of display memory or select an image with a lower bit-per-pixel value.
ERROR: Cannot use /p option with hardware cursor and ink layer.
Instead, rotate BMP file manually and load without /p option.
Because the Hardware Cursor and Ink Layer are not automatically rotated in portrait mode
1355BMP does not support the “/p” option. Instead, rotate the BMP with a paint program and then
load the rotated image in landscape (non-portrait) mode.
ERROR: Cannot use /buffer option without 2 Mbyte of display buffer
memory.
The “/buffer” option is not supported unless the platform has 2M bytes of memory.
ERROR: Could not switch portrait buffer.
The HAL library reported an error when changing the screen 1 start address register.
ERROR: Failed to open BMP file:‘filename’
The BMP file could not be opened as a read-only file.
ERROR: ‘filename’ is not a valid bitmap file.
The file does not contain a valid BMP format image.
ERROR: Could not initialize hardware cursor.
The HAL library could not initialize the Hardware Cursor.
ERROR: BMP file is ?? bit-per-pixel; hardware cursor requires 4 bitper-pixel BMP file.
The Hardware Cursor BMP image must always have a color depth of four bit-per-pixel.
SED1355
X23A-B-006-03
1355BMP Demonstration Program
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 5
ERROR: Could not initialize ink layer.
The HAL library could not initialize the Ink Layer.
ERROR: BMP file is ?? bit-per-pixel; ink layer requires 4 bit-perpixel BMP file.
The Ink Layer BMP image must always have a color depth of four bit-per-pixel.
ERROR: Could not change to ?? bit-per-pixel.
The HAL library detected that the requested color depth (bit-per-pixel) will violate the SED1355
hardware specification for clocks. To reprogram the clocks, run 1355CFG and select the desired
color depth (bit-per-pixel).
1355BMP Demonstration Program
Issue Date: 98/10/30
SED1355
X23A-B-006-03
Page 6
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-B-006-03
1355BMP Demonstration Program
Issue Date: 98/10/30
SED1355 Embedded RAMDAC LCD/CRT Controller
1355PWR Software Suspend Power
Sequencing Utility
Document Number: X23A-B-007-02
Copyright © 1998 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-B-007-02
1355PWR Software Suspend Power Sequencing Utility
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 3
1355PWR
1355PWR is a diagnostic utility used to test some of the power save capabilities of the SED1355.
1355PWR enables or disables the software suspend mode, hardware suspend mode, and the LCD,
allowing testing of the power sequencing in each mode.
To measure the timing for power sequencing, GPIO pin 1 is used to trigger an oscilloscope at the
point the requested power sequencing function is activated/deactivated. For further information on
LCD Power Sequencing and Power Save Modes, refer to the SED1355 Programming Notes and
Examples, document number X23A-G-003-xx, and the SED1355 Functional Hardware Specification, document number X23A-A-01-xx.
The 1355PWR software suspend power sequencing utility must be configured and/or compiled to
work with your hardware platform. The program 1355CFG.EXE can be used to configure
1355PWR. Consult the 1355CFG users guide, document number X23A-B-001-xx, for more
information on configuring SED1355 utilities.
This software is designed to work in both embedded and personal computer (PC) environments. For
the embedded environment, it is assumed that the system has a means of downloading software from
the PC to the target platform. Typically this is done by serial communications, where the PC uses a
terminal program to send control commands and information to the target processor. Alternatively,
the PC can program an EPROM, which is then placed in the target platform. Some target platforms
can also communicate with the PC via a parallel port connection, or an Ethernet connection.
SED1355 Supported Evaluation Platforms
1355PWR supports the following SED1355 evaluation platforms:
• PC system with an Intel 80x86 processor.
• M68332BCC (Business Card Computer) board, revision B, with a Motorola MC68332
processor.
• M68EC000IDP (Integrated Development Platform) board, revision 3.0, with a Motorola
M68EC000 processor.
• SH3-LCEVB board, revision B, with an Hitachi SH-3 HD6417780 processor.
Installation
PC platform: copy the file 1355PWR.EXE to a directory that is in the DOS path on your hard drive.
Embedded platform: download the program 1355PWR to the system.
1355PWR Software Suspend Power Sequencing Utility
Issue Date: 98/10/30
SED1355
X23A-B-007-02
Page 4
Epson Research and Development
Vancouver Design Center
Usage
PC platform: at the prompt, type
1355pwr [/software  /hardware | /lcd] [/enable  /disable] [/i]
[/0 | /1] [/?].
Embedded platform: execute 1355pwr and at the prompt, type the command line argument.
Where:
/software
selects software suspend
/hardware
selects hardware suspend (PC only)
/lcd
selects the LCD
/enable
activates software suspend, hardware suspend, or the LCD
/disable
deactivates software suspend, hardware suspend, or the LCD
/i
initializes registers
/0
GPIO1 triggers on falling edge (1->0)
/1
GPIO1 triggers on rising edge (0->1)
/?
displays this usage message
Note
1355PWR will automatically finish execution and return to the prompt.
1355PWR Examples
To enable software suspend mode, type the following:
1355PWR /software /enable
To disable software suspend mode, type the following:
1355PWR /software /disable
To enable hardware suspend mode, type the following:
1355PWR /hardware /enable
To disable hardware suspend mode, type the following:
1355PWR /hardware /disable
To enable the LCD, type the following:
1355PWR /lcd /enable
To disable the LCD, type the following:
1355PWR /lcd /disable
SED1355
X23A-B-007-02
1355PWR Software Suspend Power Sequencing Utility
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 5
Comments
• The /i argument is to be used when the registers have not been previously initialized.
• When using a PC with the SDU1355 evaluation board, the PC must not have more than 12M
bytes of system memory.
• GPIO1 is used to signal when the software suspend mode, hardware suspend mode, or LCD has
been enabled or disabled.
• Hardware suspend is changed by reading or writing to a memory address decoded by the PAL on
the SDU1355 evaluation board. This PAL is currently only used for PC platforms, so the
SDU1355 evaluation board does not support hardware suspend on embedded platforms.
Program Messages
ERROR: Did not detect SED1355.
The HAL was unable to read the revision code register on the SED1355. Ensure that the SED1355
hardware is installed and that the hardware platform has been set up correctly.
ERROR: Unknown command line argument.
An invalid command line argument was entered. Enter a valid command line argument.
ERROR: Already selected SOFTWARE.
Command line argument /software was selected more than once. Select /software only once.
ERROR: Already selected HARDWARE.
Command line argument /hardware was selected more than once. Select /hardware only once.
ERROR: Already selected LCD.
Command line argument /lcd was selected more than once. Select /lcd only once.
ERROR: Already selected ENABLE.
Command line argument /enable was selected more than once. Select /enable only once.
ERROR: Already selected DISABLE.
Command line argument /disable was selected more than once. Select /disable only once.
ERROR: Select /software, /hardware or /lcd.
Did not select one of the following command line arguments: /software, /hardware or /lcd.
Select /software, /hardware or /lcd.
ERROR: Select /enable or /disable.
Neither command line argument /enable or /disable was selected. Select /enable or
/disable.
1355PWR Software Suspend Power Sequencing Utility
Issue Date: 98/10/30
SED1355
X23A-B-007-02
Page 6
Epson Research and Development
Vancouver Design Center
ERROR: Too many devices registered.
There are too many display devices attached to the HAL. The HAL currently supports only one
device.
ERROR: Could not register SED1355FOA device.
A SED1355 device was not found at the configured addresses. Check the configuration address
using the 1355CFG configuration program.
SED1355
X23A-B-007-02
1355PWR Software Suspend Power Sequencing Utility
Issue Date: 98/10/30
SED1355 Embedded RAMDAC LCD/CRT Controller
Windows® CE Display Drivers
Document Number: X23A-E-001-04
Copyright © 1998 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Microsoft and Windows are registered trademarks of Microsoft Corporation.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-E-001-04
Windows® CE Display Drivers
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 3
WINDOWS® CE DISPLAY DRIVERS
The Windows CE display drivers are designed to support the SED1355 Embedded RAMDAC
LCD/CRT Controller running under the Microsoft Windows CE operating system. Available drivers
include: 4, 8 and 16 bit-per-pixel landscape modes, and 8 and 16 bit-per-pixel portrait modes.
For updated source code, visit Epson R&D on the World Wide Web at www.erd.epson.com, or
contact your Seiko Epson or Epson Electronics America sales representative.
Program Requirements
Video Controller
Windows® CE Display Drivers
Issue Date: 98/10/30
Display Type
: SED1355
: LCD or CRT
Windows Version
: CE Version 2.0
SED1355
X23A-E-001-04
Page 4
Epson Research and Development
Vancouver Design Center
Example Driver Builds
Build for the Hitachi D9000 and ETMA ODO Evaluation Systems
To build a Windows CE v2.0 display driver for the Hitachi D9000 or ETMA ODO platform, follow
the instructions below. The instructions assume the SDU1355-D9000 evaluation board is plugged
into slots 6 and 7 on the D9000/ODO platform, and the SEIKO EPSON common interface FPGA
(ODO.RBF) is used to interface with the SED1355.
1.
Install Microsoft Windows NT v4.0.
2.
Install Microsoft Visual C/C++ v5.0.
3.
Install the Microsoft Windows CE Embedded Toolkit (ETK) by running SETUP.EXE from
the ETK compact disc #1.
4.
Create a new project by following the procedure documented in “Creating a New Project
Directory” from the Windows CE ETK V2.0. Alternately, use the current “DEMO7” project
included with the ETK v2.0. Follow the steps below to create a “SH3 DEMO7” shortcut on the
Windows NT v4.0 desktop which uses the current “DEMO7” project:
a. Right click on the “Start” menu on the taskbar.
b. Click on the item “Open All Users” and the “Start Menu” window will come up.
c. Click on the icon “Programs”.
d. Click on the icon “Windows CE Embedded Development Kit”.
e. Drag the icon “SH3 DEMO1” onto the desktop using the right mouse button.
f. Click on “Copy Here”.
g. Rename the icon “SH3 DEMO1” on the desktop to “SH3 DEMO7” by right clicking on
the icon and choosing “rename”.
h. Right click on the icon “SH3 DEMO7” and click on “Properties” to bring up the
“SH3 DEMO7 Properties” window.
i. Replace the string “DEMO1” under the entry “Target” with “DEMO7”.
j. Click on “OK” to finish.
5.
Create a sub-directory named SED1355 under \wince\platform\odo\drivers\display.
6.
Copy the source code to the SED1355 subdirectory.
7.
Add an entry for the SED1355 in the file \wince\platform\odo\drivers\display\dirs.
8.
Modify the file PLATFORM.BIB (using any text editor such as NOTEPAD) to set the default
display driver to the file SED1355.DLL. SED1355.DLL will be created during the build in
step 12. Note that PLATFORM.BIB is located in X:\wince\platform\odo\files (where X: is the
drive letter).
You may replace the following lines in PLATFORM.BIB:
IF ODO_NODISPLAY !
IF ODO_DISPLAY_CITIZEN_8BPP
ddi.dll
SED1355
X23A-E-001-04
$(_FLATRELEASEDIR)\citizen.dll
NK SH
Windows® CE Display Drivers
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 5
ENDIF
IF ODO_DISPLAY_CITIZEN_2BPP
ddi.dll
$(_FLATRELEASEDIR)\citizen.dll
NK SH
ENDIF
IF ODO_DISPLAY_CITIZEN_8BPP !
IF ODO_DISPLAY_CITIZEN_2BPP !
ddi.dll
$(_FLATRELEASEDIR)\odo2bpp.dll
NK SH
$(_FLATRELEASEDIR)\SED1355.dll
NK
ENDIF
ENDIF
ENDIF
with this line:
ddi.dll
9.
SH
Edit the file MODE.H (located in X:\wince\platform\odo\drivers\display\SED1355) to set the
desired screen resolution, color depth (bpp) and panel type. The sample code defaults to a
640x480 color dual passive 16-bit LCD panel. To support one of the other listed panels,
change the #define statement.
10. Edit the file PLATFORM.REG to set the same screen resolution and color depth (bpp) as in
MODE.H. PLATFORM.REG is located in X:\wince\platform\odo\files. The display driver
section of PLATFORM.REG should be:
; Default for EPSON Display Driver
; 640x480 at 8bits/pixel
; Useful Hex Values
; 1024=0x400, 768=0x300 640=0x280 480=0x1E0 320=140 240=0xF0
[HKEY_LOCAL_MACHINE\Drivers\Display\SED1355]
"CxScreen"=dword:280
"CyScreen"=dword:1E0
"Bpp"=dword:8
11. Generate the proper building environment by double-clicking on the sample project icon
(i.e., SH3 DEMO7).
12. Type BLDDEMO <ENTER> at the DOS prompt of the SH3 DEMO7 window to generate a
Windows CE image file (NK.BIN).
Build For CEPC (X86)
To build a Windows CE v2.0 display driver for the CEPC (X86) platform using a SDU1355B0C
evaluation board, follow the instructions below:
Windows® CE Display Drivers
Issue Date: 98/10/30
1.
Install Microsoft Windows NT v4.0.
2.
Install Microsoft Visual C/C++ v5.0.
3.
Install the Microsoft Windows CE Embedded Toolkit (ETK) by running SETUP.EXE from
the ETK compact disc #1.
SED1355
X23A-E-001-04
Page 6
Epson Research and Development
Vancouver Design Center
4.
Create a new project by following the procedure documented in “Creating a New Project
Directory” from the Windows CE ETK V2.0. Alternately, use the current “DEMO7” project
included with the ETK v2.0. Follow the steps below to create a “X86 DEMO7” shortcut on the
Windows NT v4.0 desktop which uses the current “DEMO7” project:
a. Right click on the “Start” menu on the taskbar.
b. Click on the item “Open All Users” and the “Start Menu” window will come up.
c. Click on the icon “Programs”.
d. Click on the icon “Windows CE Embedded Development Kit”.
e. Drag the icon “X86 DEMO1” onto the desktop using the right mouse button.
f. Click on “Copy Here”.
g. Rename the icon “X86 DEMO1” on the desktop to “X86 DEMO7” by right clicking on
the icon and choosing “rename”.
h. Right click on the icon “X86 DEMO7” and click on “Properties” to bring up the
“X86 DEMO7 Properties” window.
i. Replace the string “DEMO1” under the entry “Target” with “DEMO7”.
j. Click on “OK” to finish.
5.
Create a sub-directory named SED1355 under \wince\platform\cepc\drivers\display.
6.
Copy the source code to the SED1355 subdirectory.
7.
Add an entry for the SED1355 in the file \wince\platform\cepc\drivers\display\dirs.
8.
Modify the file CONFIG.BIB (using any text editor such as NOTEPAD) to set the system
RAM size, the SED1355 IO port and display buffer address mapping. Note that
CONFIG.BIB is located in X:\wince\platform\cepc\files (where X: is the drive letter). Since
the SDU1355B0C maps the IO port to 0xE00000 and memory to 0xC00000, the CEPC
machine should use the CMOS setup to create a 4M byte hole from address 0xC00000 to
0xFFFFFF. The following lines should be in CONFIG.BIB:
NK 80200000 00500000 RAMIMGE
RAM 80700000 00500000 RAM
Note
SED1355.H should include the following:
#define PhysicalVmemSize 0x00200000L
#define PhysicalPortAddr 0x00E00000L
#define PhysicalVmemAddr 0x00C00000L
9.
Edit the file PLATFORM.BIB (located in X:\wince\platform\cepc\files) to set the default display driver to the file SED1355.DLL. SED1355.DLL will be created during the build in
step 13.
You may replace the following lines in PLATFORM.BIB:
IF CEPC_DDI_VGA2BPP
ddi.dll
$(_FLATRELEASEDIR)\ddi_vga2.dll
NK SH
ENDIF
SED1355
X23A-E-001-04
Windows® CE Display Drivers
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 7
IF CEPC_DDI_VGA8BPP
ddi.dll
$(_FLATRELEASEDIR)\ddi_vga8.dll
NK SH
ENDIF
IF CEPC_DDI_VGA2BPP !
IF CEPC_DDI_VGA8BPP !
ddi.dll
$(_FLATRELEASEDIR)\ddi_s364.dll
NK SH
$(_FLATRELEASEDIR)\SED1355.dll
NK SH
ENDIF
ENDIF
with this line:
ddi.dll
10. Edit the file MODE.H (located in X:\wince\platform\odo\drivers\display\SED1355) to set the
desired screen resolution, color depth (bpp) and panel type. The sample code defaults to a
640x480 color dual passive 16-bit LCD panel. To support one of the other listed panels,
change the #define statement.
11. Edit the file PLATFORM.REG to set the same screen resolution and color depth (bpp) as in
MODE.H. PLATFORM.REG is located in X:\wince\platform\cepc\files. The display driver
section of PLATFORM.REG should be:
; Default for EPSON Display Driver
; 640x480 at 8bits/pixel
; Useful Hex Values
; 1024=0x400, 768=0x300 640=0x280 480=0x1E0 320=140 240=0xF0
[HKEY_LOCAL_MACHINE\Drivers\Display\SED1355]
"CxScreen"=dword:280
"CyScreen"=dword:1E0
"Bpp"=dword:8
12. Generate the proper building environment by double-clicking on the sample project icon
(i.e. X86 DEMO7).
13. Type BLDDEMO <ENTER> at the DOS prompt of the X86 DEMO7 window to generate a
Windows CE image file (NK.BIN).
Windows® CE Display Drivers
Issue Date: 98/10/30
SED1355
X23A-E-001-04
Page 8
Epson Research and Development
Vancouver Design Center
Example Installation
Installation for Hitachi D9000 and ETMA ODO
Follow the procedures from your Hitachi D9000 (or ETMA ODO) manual and download the
following to the D9000 platform:
1.
Download SEIKO EPSON’s common interface FPGA code (ODO.RBF) to the EEPROM of
the D9000 system.
2.
Download the Windows CE binary ROM image (NK.BIN) to the FLASH memory of the
D9000 system.
Installation for CEPC Environment
Windows CE v2.0 can be loaded on a PC using a floppy drive or a hard drive. The two methods are
described below:
1.
2.
SED1355
X23A-E-001-04
To load CEPC from a floppy drive:
a.
Create a DOS bootable floppy disk.
b.
Edit CONFIG.SYS on the floppy disk to contain the following line only.
device=a:\himem.sys
c.
Edit AUTOEXEC.BAT on the floppy disk to contain the following lines.
mode com1:9600,n,8,1
loadcepc /B:9600 /C:1 /D:2 c:\wince\release\nk.bin
d.
Copy LOADCEPC.EXE from c:\wince\public\common\oak\bin to the bootable
floppy disk.
e.
Confirm that NK.BIN is located in c:\wince\release.
f.
Reboot the system from the bootable floppy disk.
To load CEPC from a hard drive:
a.
Copy LOADCEPC.EXE to the root directory of the hard drive.
b.
Edit CONFIG.SYS on the hard drive to contain the following line only.
device=c:\himem.sys
c.
Edit AUTOEXEC.BAT on the hard drive to contain the following lines.
mode com1:9600,n,8,1
loadcepc /B:9600 /C:1 /D:2 c:\wince\release\nk.bin
d.
Confirm that NK.BIN is located in c:\wince\release.
e.
Reboot the system from the hard drive.
Windows® CE Display Drivers
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 9
Comments
• Some of the D9000 systems may not be able to provide enough current for your LCD panel to
operate properly. If this is the case, an external power supply should be connected to the panel.
• The Seiko Epson Common Interface FPGA code assumes the display buffer starts at
0x12200000 and IO starts at 0x12000000. If the display buffer or IO location is modified, the
corresponding entries in the file SED1355.H have to be changed. SED1355.H is located in
X:\wince\platform\odo\drivers\display\SED1355 (where X: is the drive letter).
• The driver is CPU independent but will require another ODO.RBF file to support other CPUs
when running on the Hitachi D9000 or ETMA ODO platform. Please check with Seiko Epson for
the latest supported CPU ODO files.
• As the time of this printing, the drivers have been tested on the SH-3 and x86 CPUs and have
only been run with version 2.0 of the ETK. We are constantly updating the drivers so please
check our website at www.erd.epson.com, or contact your Seiko Epson or Epson Electronics
America sales representative.
Windows® CE Display Drivers
Issue Date: 98/10/30
SED1355
X23A-E-001-04
Page 10
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-E-001-04
Windows® CE Display Drivers
Issue Date: 98/10/30
SED1355 Embedded RAMDAC LCD/CRT Controller
SDU1355B0C Rev. 1.0 ISA Bus Evaluation
Board User Manual
Document Number: X23A-G-004-04
Copyright © 1998 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-004-04
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 3
Table of Contents
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2
Installation and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3
LCD Interface Pin Mapping
4
CPU/Bus Interface Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
5
Host Bus Interface Pin Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6
Technical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.1
ISA Bus Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.2
Non-ISA Bus Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.3
DRAM Support
6.4
Decode Logic
6.5
Clock Input Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.6
Monochrome LCD Panel Support
6.7
Color Passive LCD Panel Support . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.8
Color TFT/D-TFD LCD Panel Support . . . . . . . . . . . . . . . . . . . . . . . 15
6.9
CRT Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
. . . . . . . . . . . . . . . . . . . . . . . . . 14
6.10 Power Save Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.11 Adjustable LCD Panel Negative Power Supply . . . . . . . . . . . . . . . . . . . .15
6.12 Adjustable LCD Panel Positive Power Supply
. . . . . . . . . . . . . . . . . . . . 15
6.13 CPU/Bus Interface Header Strips . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.14 Schematic Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
8
Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
SED1355
X23A-G-004-04
Page 4
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-004-04
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 5
List of Tables
Table 2-1:
Configuration DIP Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 2-2:
Host Bus Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 2-3:
Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 3-1:
LCD Signal Connector (J6)
Table 4-1:
CPU/BUS Connector (H1) Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 4-2:
CPU/BUS Connector (H2) Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 5-1:
CPU Interface Pin Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
List of Figures
Figure 1:
SED1355B0C Schematic Diagram (1 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 2:
SED1355B0C Schematic Diagram (2 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 3:
SED1355B0C Schematic Diagram (3 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 4:
SED1355B0C Schematic Diagram (4 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
SED1355
X23A-G-004-04
Page 6
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-004-04
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 7
1 Introduction
This manual describes the setup and operation of the SDU1355B0C Rev. 1.0 Evaluation Board.
Implemented using the SED1355 Embedded RAMDAC LCD/CRT Controller, the SDU1355BOC
is designed for the ISA bus environment. It also provides CPU/Bus interface connectors for non-ISA
bus support.
For more information regarding the SED1355, refer to the SED1355 Hardware Functional Specification, document number X23A-A-001-xx.
1.1 Features
• 128-pin QFP15 surface mount package.
• SMT technology for all appropriate devices.
• 4/8-bit monochrome passive LCD panel support.
• 4/8/16-bit color passive LCD panel support.
• 9/12/18-bit LCD TFT/D-TFD panel support.
• Embedded RAMDAC for CRT support.
• 16-bit ISA bus support.
• Oscillator support for CLKI (up to 40.0MHz).
• 5.0V 1M x 16 EDO-DRAM (2M byte).
• Support for software and hardware suspend modes.
• On-board adjustable LCD bias power supply (+24..38V or -24..14V).
• CPU/Bus interface header strips for non-ISA bus support.
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
SED1355
X23A-G-004-04
Page 8
Epson Research and Development
Vancouver Design Center
2 Installation and Configuration
The SED1355 has 16 configuration inputs MD[15:0] which are read on the rising edge of RESET#.
Inputs MD[5:1] are fully configurable on this evaluation board for different host bus selections; one
eight-position DIP switch is provided for this purpose. All remaining configuration inputs are hardwired. See the SED1355 Hardware Functional Specification, document number X23A-A-001-xx for
more information.
The following settings are recommended when using the SDU1355B0C with the ISA bus.
Table 2-1: Configuration DIP Switch Settings
Switch Signal
Closed (1)
Open (0)
SW1-1 MD1
SW1-2 MD2
See “Host Bus Selection” table below See “Host Bus Selection” table below
SW1-3 MD3
SW1-4 MD4
Little Endian
Big Endian
SW1-5 MD5
Wait# signal is active high
Wait# signal is active low
SW1-6 MD13
SW1-7 MD14
Reserved
SW1-8 MD15
Table 2-2: Host Bus Selection
MD3 / SW1-3
MD2 / SW1-2
MD1 / SW1-1
Host Bus Interface
open (0)
open (0)
open (0)
open (0)
open (0)
closed (1)
MC68K bus 1 interface (e.g. MC68000)
open (0)
closed (1)
open (0)
MC68K bus 2 interface (e.g. MC68030)
open (0)
closed (1)
closed (1)
closed (1)
open (0)
open (0)
Reserved
closed (1)
open (0)
closed (1)
MIPS/ISA
closed (1)
closed (1)
open (0)
PowerPC
closed (1)
closed (1)
closed (1)
SH-3/SH-4 bus interface
Generic bus interface
PC Card (PCMCIA)
= recommended settings (configured for ISA bus support)
Table 2-3: Jumper Settings
Description
1-2
2-3
JP1
DRDY (pin 76, SED1355)
Pin 76 connected to J6 pin 38
Pin 76 connected to J6 pin 35
JP2
LCD VDD Selection
5.0V LCD driver VDD
3.3V LCD driver VDD
Note
JP1 is for internal use only, default setting is 1-2.
SED1355
X23A-G-004-04
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 9
3 LCD Interface Pin Mapping
Table 3-1: LCD Signal Connector (J6)
Color TFT/D-TFD
Color Passive
SED1355
Pin Names
Connector
Pin No.
9-bit
12-bit
18-bit
FPDAT0
1
R2
R3
FPDAT1
3
R1
R2
FPDAT2
5
R0
FPDAT3
7
FPDAT4
9
FPDAT5
FPDAT6
8-bit
16-bit
R5
LD0
LD0
LD0
R4
LD1
LD1
LD1
R1
R3
LD2
LD2
LD2
G2
G3
G5
LD3
LD3
G1
G2
G4
UD0
UD0
UD0
11
G0
G1
G3
UD1
UD1
UD1
UD1
UD1
13
B2
B3
B5
UD2
UD2
UD2
UD2
UD2
UD3
UD3
UD3
UD3
UD3
FPDAT7
15
B1
B2
B4
FPDAT8
17
B0
B1
B3
FPDAT9
19
FPDAT10
21
FPDAT11
23
FPDAT12
25
FPDAT13
27
FPDAT14
29
FPDAT15
31
FPSHIFT
33
R0
G0
B0
4-bit
Mono Passive
R2
LD5
R1
LD6
G2
LD7
G1
UD4
G0
UD5
B2
UD6
B1
35
FPLINE
FPFRAME
39
FPFRAME
GND
2-26
(Even Pins)
GND
FPSHIFT2
N/C
28
VEEH
30
Adjustable -24..-14V negative LCD bias
LCDVCC
32
Jumper selectable +3.3V/+5V
+12V
34
+12V
36
LCDPWR#
40
UD0
UD7
37
38
LD3
UD0
FPSHIFT
DRDY
DRDY
8-bit
LD4
FPLINE
VDDH
4-bit
Adjustable +15..+38V positive LCD bias
DRDY
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
MOD
FPSHIFT2
MOD
LCDPWR#
SED1355
X23A-G-004-04
Page 10
Epson Research and Development
Vancouver Design Center
4 CPU/Bus Interface Connector Pinouts
Table 4-1: CPU/BUS Connector (H1) Pinout
Connector
Pin No.
SED1355
X23A-G-004-04
Comments
1
Connected to DB0 of the SED1355
2
Connected to DB1 of the SED1355
3
Connected to DB2 of the SED1355
4
Connected to DB3 of the SED1355
5
Ground
6
Ground
7
Connected to DB4 of the SED1355
8
Connected to DB5 of the SED1355
9
Connected to DB6 of the SED1355
10
Connected to DB7 of the SED1355
11
Ground
12
Ground
13
Connected to DB8 of the SED1355
14
Connected to DB9 of the SED1355
15
Connected to DB10 of the SED1355
16
Connected to DB11 of the SED1355
17
Ground
18
Ground
19
Connected to DB12 of the SED1355
20
Connected to DB13 of the SED1355
21
Connected to DB14 of the SED1355
22
Connected to DB15 of the SED1355
23
Connected to RESET# of the SED1355
24
Ground
25
Ground
26
Ground
27
+12 volt supply
28
+12 volt supply
29
Connected to WE0# of the SED1355
30
Connected to WAIT# of the SED1355
31
Connected to CS# of the SED1355
32
Connected to MR# of the SED1355
33
Connected to WE1# of the SED1355
34
Not connected
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 11
Table 4-2: CPU/BUS Connector (H2) Pinout
Connector
Pin No.
Comments
1
Connected to AB0 of the SED1355
2
Connected to AB1 of the SED1355
3
Connected to AB2 of the SED1355
4
Connected to AB3 of the SED1355
5
Connected to AB4 of the SED1355
6
Connected to AB5 of the SED1355
7
Connected to AB6 of the SED1355
8
Connected to AB7 of the SED1355
9
Ground
10
Ground
11
Connected to AB8 of the SED1355
12
Connected to AB9 of the SED1355
13
Connected to AB10 of the SED1355
14
Connected to AB11 of the SED1355
15
Connected to AB12 of the SED1355
16
Connected to AB13 of the SED1355
17
Ground
18
Ground
19
Connected to AB14 of the SED1355
20
Connected to AB14 of the SED1355
21
Connected to AB16 of the SED1355
22
Connected to AB17 of the SED1355
23
Connected to AB18 of the SED1355
24
Connected to AB19 of the SED1355
25
Ground
26
Ground
27
+5 volt supply
28
+5 volt supply
29
Connected to RD/WR# of the SED1355
30
Connected to BS# of the SED1355
31
Connected to BUSCLK of the SED1355
32
Connected to RD# of the SED1355
33
Connected to AB20 of the SED1355
34
Not connected
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
SED1355
X23A-G-004-04
Page 12
Epson Research and Development
Vancouver Design Center
5 Host Bus Interface Pin Mapping
Table 5-1: CPU Interface Pin Mapping
SED1355
Pin Names
SH-3
SH-4
MC68K
Bus 1
MC68K
Bus 2
Generic
MIPS/ISA
PowerPC
PCMCIA
AB20
A20
A20
A20
A20
A20
LatchA20
A11
A20
AB[16:13]
A[19:13]
A[19:13]
A[19:13]
A[19:13]
A[19:13]
SA[19:13]
A[12:18]
A[19:13]
AB[12:1]
A[12:1]
A[12:1]
A[12:1]
A[12:1]
A[12:1]
SA[12:1]
A[19:30]
A[12:1]
AB0
A0
A0
LDS#
A0
A0
SA0
A31
A0
DB[15:0]
D[15:0]
D[15:0]
D[15:0]
D[31:16]
D[15:0]
SD[15:0]
D[0:15]
D[15:0]
WE1#
WE1#
WE1#
UDS#
DS#
WE1#
SBHE#
BI#
-CE2
CLK
CLKOUT
CLKI
M/R#
External Decode
CS#
BUSCLK
External Decode
CKIO
CKIO
CLK
CLK
BCLK
BS#
BS#
BS#
AS#
AS#
VDD
VDD
TS#
VDD
RD/WR#
RD/WR#
RD/WR#
R/W#
R/W#
RD1#
VDD
RD/WR#
-CE1
RD#
RD#
RD#
VDD
SIZ1
RD0#
MEMR#
TSIZ0
-OE
WE0#
WE0#
WE0#
VDD
SIZ0
WE0#
MEMW#
TSIZ1
-WE
WAIT#
WAIT#
RDY
DTACK#
DSACK1#
WAIT#
IOCHRDY
TA#
-WAIT
RESET#
inverted
RESET
RESET#
inverted
RESET
RESET#
SED1355
X23A-G-004-04
RESET#
RESET#
RESET#
RESET#
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 13
6 Technical Description
6.1 ISA Bus Support
The SDU1355B0C directly supports the 16-bit ISA bus environment. All the configuration options
[MD15:0] are either hard-wired or selectable through the eight-position DIP Switch S1. Refer to
Table 2-1 “Configuration DIP Switch Settings” on page 8 for details.
Note
1. This evaluation board supports a 16-bit ISA bus only.
2. The SED1355 is a memory-mapped device with 2M bytes of linear addressed display buffer
and a separate 47 byte register space. On the SDU1355B0C, the SED1355 2M byte display
buffer has been mapped to a start address of C00000h and the registers have been mapped to a
start address of E00000h.
3. When using this board in a PC environment, system memory must be limited to 12M bytes, to
prevent the system addresses will conflict with the SED1355 display buffer/register
addresses.
4. The hardware suspend enable/disable address is at location F00000h. A read to this location
will enable the hardware suspend, a write to the same location will disable it.
Note
Due to backwards compatibility with the SDU1355B0B Evaluation Board, which supports both
an 8 and a 16-bit CPU interface, third party software must perform a write at address F80000h in
order to enable a 16-bit ISA environment. This must be done prior to initializing the SED1355.
Failure to do so will result in the SED1355 being configured as a 16-bit device (default, powerup), with the ISA Bus interface (supported through the PAL (U4)) configured for an 8-bit
interface.
The Epson supplied software performs this function automatically.
6.2 Non-ISA Bus Support
This evaluation board is specifically designed to support the standard 16-bit ISA bus. However, the
SED1355 directly supports many other host bus interfaces. Header strips H1 and H2 have been
provided and contain all the necessary I/O pins to interface to these buses. See, Section 4 “CPU/Bus
Interface Connector Pinouts” on page 10, Table 2-1 “Configuration DIP Switch Settings” on page
8, and Table 2-3 “Jumper Settings” on page 8, for details.
When using the header strips to provide the bus interface observe the following:
• All I/O signals on the ISA bus card edge must be isolated from the ISA bus (do not plug the card
into a computer). Voltage lines are provided on the header strips.
• For the ISA bus, a 22V10 PAL (U4, socketed) is currently used to provide the SED1355
CS# (pin 4), M/R# (pin 5) and other decode logic signals. This functionality must now be
provided externally. Remove the PAL from its socket to eliminate conflicts resulting from two
different outputs driving the same input. Refer to Table 2-2 “Host Bus Selection” on page 8 for
connection details.
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
SED1355
X23A-G-004-04
Page 14
Epson Research and Development
Vancouver Design Center
6.3 DRAM Support
The SED1355 supports 256K x 16 as well as 1M x 16 FPM/EDO-DRAM in symmetrical and
asymmetrical formats.
The SDU1355B0C board supports a 5.0V 1M x 16 symmetrical EDO-DRAM (42-pin SOJ package).
This provides a 2M byte display buffer.
6.4 Decode Logic
This board utilizes the MIPS/ISA Interface of the SED1355 (see the SED1355 Hardware Functional
Specification, document number X23A-A-001-xx).
All required decode logic is provided through a 22V10 PAL (U4, socketed).
6.5 Clock Input Support
The SED1355 supports up to a 40.0Mhz input clock frequency. A 40.0MHz oscillator (U2, socketed)
is provided on the SDU1355 board as the clock (CLKI) source.
6.6 Monochrome LCD Panel Support
The SED1355 supports 4 and 8-bit, dual and single, monochrome passive LCD panels. All necessary
signals are provided on the 40-pin ribbon cable header J6. The interface signals on the cable are alternated with grounds to reduce crosstalk and noise.
Refer to Table 3-1 “LCD Signal Connector (J6)” on page 9 for connection information.
6.7 Color Passive LCD Panel Support
The SED1355 directly supports 4, 8 and 16-bit, dual and single, color passive LCD panels. All the
necessary signals are provided on the 40-pin ribbon cable header J6. The interface signals on the
cable are alternated with grounds to reduce crosstalk and noise.
Refer to Table 3-1 “LCD Signal Connector (J6)” on page 9 for connection information.
SED1355
X23A-G-004-04
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 15
6.8 Color TFT/D-TFD LCD Panel Support
The SED1355 supports 9, 12 and 18-bit active matrix color TFT/D-TFD panels. All the necessary
signals can also be found on the 40-pin LCD connector J6. The interface signals on the cable are
alternated with grounds to reduce crosstalk and noise.
When supporting an 18-bit TFT/D-TFD panel, the SED1355 can display 64K of a possible 256K
colors. A maximum 16 of the possible 18 bits of LCD data are available from the SED1355. Refer
to the SED1355 Hardware Functional Specification, document number X23A-A-001-xx for details.
Refer to Table 3-1 “LCD Signal Connector (J6)” on page 9 for connection information.
6.9 CRT Support
This evaluation board provides CRT support through the SED1355’s embedded RAMDAC. Refer
to the SED1355 Hardware Functional Specification, document number X23A-A-001-xx for details.
6.10 Power Save Modes
The SED1355 supports one hardware suspend and one software suspend Power Save Mode.
The software suspend mode is controlled by the utility 1355PWR Software Suspend Power
Sequencing.
The hardware suspend mode can be enabled by a memory read to location F00000h. A memory write
to the same location will disable it.
6.11 Adjustable LCD Panel Negative Power Supply
Most monochrome passive LCD panels require a negative power supply to provide between -18V
and -23V (Iout=45mA). For ease of implementation, such a power supply has been provided as an
integral part of this design. The signal VLCD can be adjusted by R29 to supply an output voltage
from -14V to -23V and is enabled/disabled by the SED1355 control signal LCDPWR#.
Determine the panel’s specific power requirements and set the potentiometer accordingly before
connecting the panel.
6.12 Adjustable LCD Panel Positive Power Supply
Most passive LCD passive color panels and most single monochrome 640x480 passive LCD panels
require a positive power supply to provide between +23V and +40V (Iout=45mA). For ease of implementation, such a power supply has been provided as an integral part of this design. The signal
VDDH can be adjusted by R23 to provide an output voltage from +23V to +40V and is
enabled/disabled by the SED1355 control signal LCDPWR#.
Determine the panel’s specific power requirements and set the potentiometer accordingly before
connecting the panel.
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
SED1355
X23A-G-004-04
Page 16
Epson Research and Development
Vancouver Design Center
6.13 CPU/Bus Interface Header Strips
All of the CPU/Bus interface pins of the SED1355 are connected to the header strips H1 and H2 for
easy interface to a CPU, or bus other than ISA.
Refer to Table 4-1 “CPU/BUS Connector (H1) Pinout” on page 10 and Table 4-2 “CPU/BUS
Connector (H2) Pinout” on page 11 for specific settings.
Note
These headers only provide the CPU/Bus interface signals from the SED1355. When another
host bus interface is selected through [MD3:1] configuration, appropriate external decode logic
MUST be used to access the SED1355. See the section “Host Bus Interface Pin Mapping” of the
SED1355 Hardware Functional Specification, document number X23A-A-001-xx.
6.14 Schematic Notes
The following schematics are for reference only and may not reflect actual implementation. Please
request updated information before starting any hardware design.
SED1355
X23A-G-004-04
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 17
7 Parts List
Item # Qty/board
Designation
C1,C2,C3,C4,C5,C6,C7,C10,C11,
C12,C13,C18,C25,C27,C28,C29
Part Value
Description
0.1uF
0805 ceramic capacitor
1
16
2
1
C8
0.01uF
0805 ceramic capacitor
3
2
C9,C30
1uF 6V
Tantalum capacitor size A
4
2
C14,C19
47uF 6V
Tantalum capacitor size D
5
3
C15,C16,C17
4.7uF 50V
Tantalum capacitor size D
6
1
C20
56uF 35V
Low-ESR electrolytic
7
4
C21,C22,C23,C24
4.7uF 16V
Tantalum capacitor size B
9
3
D1,D2,D3
BAV99
Signal diode
10
2
H1,H2
11
2
JP1,JP2
12
1
J1
VGA connector
13
1
J2
AT CON-A
14
1
J3
AT CON-B
15
1
J4
AT CON-C
16
1
J5
AT CON-D
17
1
J6
CON40A
18
6
L1,L2,L3,L4,L5,L7
Ferrite bead
19
1
L6
Inductor 1µH
20
2
Q1,Q3”
MMBT2222A
21
1
22
10
23
2
R3,R4
24
3
25
HEADER 17X2
HEADER 3
Q2
MMBT2907A
R1,R2,R21,R26,R30,R31,R32,R33,R
10K
34,R35
Philips BDS3/3/8.9-4S2
0805 resistor
39 Ohms
0805 resistor
R5,R6,R7
150 1%
0805 resistor
1
R8
2.8K 1%
0805 resistor
26
1
R9
1K 1%
0805 resistor
27
1
28
10
29
1
R22
470K
30
1
R23
200K Pot.
31
1
R24
14K
0805 resistor
32
1
R25
4.7K
0805 resistor
33
2
R28,R27
100K
0805 resistor
34
1
R29
100K Pot.
35
1
S1
SW DIP-8
36
1
U1
SED1355F0A
37
1
U2
40MHz oscillator
R10
140 1%
R11,R12,R13,R14,R15,R16,R17,R18,
15K
R19,R20
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
0805 resistor
0805 resistor
0805 resistor
SED1355
X23A-G-004-04
Page 18
Epson Research and Development
Vancouver Design Center
Item # Qty/board
Designation
Part Value
Description
38
1
U3
MT4C1M16E5DJS-5
39
1
U4
PAL22V10-15
40
1
U5
RD-0412
Xentek RD-0412
41
1
U6
EPN001
Xentek EPN001
42
3
U7,U8,U9
43
1
U10
SED1355
X23A-G-004-04
50ns self-refresh EDO DRAM
74AHC244
LT1117CM-3.3
“5V to 3.3V regulator, 800mA”
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
D
C
VCC
VCC
1
0.1uF
C1
FERRITE BEAD
L5
C10
0.1uF
+
VCC
40MHz
GND
VCC
U2
C2
0.1uF
FERRITE BEAD
L4
VCC
4
8
C9
1uF 6V
AVCC
C3
0.1uF
OUT
NC
2
VCC
5
1
C4
0.1uF
AVCC
VCC
C7
0.1uF
C5
0.1uF
BUSCLK
WAIT#
CS#
M/R#
RESET#
RD/WR#
WE1#
WE0#
RD#
BS#
D[0..15]
AVCC
VCC
A[0..19]
C8
0.01uF
C6
0.1uF
VCC
D[0..15]
A[0..19]
3
R1
10K
3
R2
10K
AVCC
VCC
VCC
A20
A20
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
70
98
106
14
32
50
68
78
87
96
110
99
102
104
12
33
55
72
97
109
69
13
15
4
5
11
10
9
8
7
6
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
3
2
1
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
4
4
SED1355F0A
TESTEN
DAC_VSS1
DAC_VSS2
VSS1
VSS2
VSS3
VSS4
VSS5
VSS6
VSS7
VSS8
DAC_VDD1
DAC_VDD2
DAC_VDD3
VDD1
VDD2
VDD3
VDD4
VDD5
VDD6
CLKI
BUSCLK
WAIT#
CS#
M/R#
RESET#
RD/WR#
WE1#
WE0#
RD#
BS#
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
DB8
DB9
DB10
DB11
DB12
DB13
DB14
DB15
AB0
AB1
AB2
AB3
AB4
AB5
AB6
AB7
AB8
AB9
AB10
AB11
AB12
AB13
AB14
AB15
AB16
AB17
AB18
AB19
AB20
U1
AVCC
101
108
107
105
103
100
79
80
81
82
83
84
85
86
88
89
90
91
92
93
94
95
73
74
77
76
71
75
54
51
52
53
35
37
39
41
43
45
47
49
48
46
44
42
40
38
36
34
61
63
65
67
66
64
62
60
58
56
59
57
5
2.8K 1%
R8
IREF
VRTC
HRTC
BLUE
GREEN
RED
FPDAT0
FPDAT1
FPDAT2
FPDAT3
FPDAT4
FPDAT5
FPDAT6
FPDAT7
FPDAT8
FPDAT9
FPDAT10
FPDAT11
FPDAT12
FPDAT13
FPDAT14
FPDAT15
FPFRAME
FPLINE
FPSHIFT
DRDY
SUSPEND#
LCDPWR
RAS#
LCAS#
UCAS#
WE#
MD0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
MD8
MD9
MD10
MD11
MD12
MD13
MD14
MD15
MA0
MA1
MA2
MA3
MA4
MA5
MA6
MA7
MA8
MA9/GPIO3
MA10/GPIO1
MA11/GPIO2
5
R9
1K 1%
FPDAT0
FPDAT1
FPDAT2
FPDAT3
FPDAT4
FPDAT5
FPDAT6
FPDAT7
FPDAT8
FPDAT9
FPDAT10
FPDAT11
FPDAT12
FPDAT13
FPDAT14
FPDAT15
MD0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
MD8
MD9
MD10
MD11
MD12
MD13
MD14
MD15
MA0
MA1
MA2
MA3
MA4
MA5
MA6
MA7
MA8
MA9
R10
140 1%
Q1
MMBT2222A
L1
MD[0..15]
MA[0..9]
6
R5
150 1%
FERRITE BEAD
6
R6
150 1%
L3
3
D2
BAV9 9
AVCC
7
39
2
Document Number
Tuesday, March 24, 1998
7
Size
B
Date:
SDU1355B0C ISA Bus Evaluation Board
Epson Research & Development, Inc.
R4
FERRITE BEAD
R3
39
3
D1
BAV9 9
R7
150 1%
FERRITE BEAD
L2
FPDAT[0..15]
FPFRAME
FPLINE
FPSHIFT
FPSHIFT2
SUSPEND#
LCDPWR#
RAS#
LCAS#
UCAS#
WE#
MD[0..15]
MA[0..9]
2
1
B
2
2
1
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
1
A
1
3
D3
BAV9 9
Sheet
1
6
1
11
7
2
12
8
3
13
9
4
14
10
5
15
8
of
4
Rev
1.0
PS/2 CONNECTOR
J1
8
D
C
B
A
Epson Research and Development
Vancouver Design Center
Page 19
8 Schematic Diagrams
Figure 1: SED1355B0C Schematic Diagram (1 of 4)
SED1355
X23A-G-004-04
D
C
B
A
LCDPWR#
WE#
RAS#
UCAS#
LCAS#
1
VCC
PSVCC
+
C18
0.1uF
FERRITE BEAD
L7
C14
47uF 6V
U5
RD-0412
MA[0..9]
MD[0..15]
DC_IN
2
REMOTE
3
GND
GND
GND
GND
GND
GND
GND
PSVCC
2
MA0
MA1
MA2
MA3
MA4
MA5
MA6
MA7
MA8
MA9
PSVCC
4
5
6
7
8
10
11
NC
9
MA[0..9]
29
11
12
32
13
14
30
31
17
18
19
20
23
24
25
26
27
28
16
15
2
+
C19
47uF 6V
R24
14K
R23
200K Pot.
R22
470K
+
C15
4.7uF 50V
VSS
VSS
VSS
VCC
VCC
VCC
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
U6
EPN001
MT4C1M16E5D JS-5
/OE
NC
NC
NC
/W
/RAS
/UCAS
/LCAS
A0
A1
A2
A3
A4
A5
A6
A7
A8R/A8
A9R/A9
A10/NC
A11/NC
U3
3
2
3
100K Pot.
R29
22
37
42
1
6
21
2
3
4
5
7
8
9
10
33
34
35
36
38
39
40
41
+
2
L6
VCC
1uH
C16
4.7uF 50V
MD0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
MD8
MD9
MD10
MD11
MD12
MD13
MD14
MD15
5
VCC
DC_OUT
MD[0..15]
VOUT_ADJ
1
2
DC_OUT
12
3
1
1
3
1
DC_IN
DC_IN
11
10
VOUT_ADJ
6
GND
GND
5
4
NC
NC
NC
NC
9
8
7
3
DC_OUT
2
+
SED1355
X23A-G-004-04
+
C11
0.1uF
4
4
C20
56uF 35V
1
C12
0.1uF
100K
R27
4.7K
R25
C17
4.7uF 50V
VCC
MD[0..15]
VDDH
MMBT2222A
Q3
R26
10K
Q2
MMBT2907A
PSVCC
5
R28
100K
1
2
3
4
5
6
7
8
SW DIP-8
S1
VEEH
LA[17..23]
MD6
MD10
MD1
MD2
MD3
MD4
MD5
MD13
MD14
MD15
RFSH#
BALE
RD#
WE0#
RESET
PSVCC
LA[17..23]
5
16
15
14
13
12
11
10
9
LA19
LA20
LA21
LA22
LA23
6
6
R11
15K
1
2
3
4
5
6
7
8
9
10
11
13
R13
15K
O1
O2
O3
O4
O5
O6
O7
O8
O9
O10
23
22
21
20
19
18
17
16
15
14
R14
15K
R15
15K
7
VCC
Document Number
Friday, March 27, 1998
7
Date:
SDU1355B0C ISA Bus Evaluation Board
Size
B
R17
15K
C13
0.1uF
RESET#
CS#
M/R#
SUSPEND#
A20
R16
15K
Epson Research & Development, Inc.
22V10
I1/CLK
I2
I3
I4
I5
I6
I7
I8
I9
I10
I11
I12
U4
R12
15K
VCC
Sheet
VCC
R18
15K
10K
R21
2
R19
15K
8
8
of
4
MCS1 6#
R20
15K
Rev
1.0
D
C
B
A
Page 20
Epson Research and Development
Vancouver Design Center
Figure 2: SED1355B0C Schematic Diagram (2 of 4)
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
D
C
B
A
1
RD#
WE0#
WE1#
LA[17..23]
A[0..19]
WAIT#
D[0..15]
1
+
VCC
+
VCC
VCC
VCC
R34
10K
C21
4.7uF 16V
VCC
D[0..15]
2
A[0..19]
+
VCC
C23
4.7uF 16V
VCC
LA[17..23]
C22
4.7uF 16V
R35
10K
R31
10K
2
10K
R33
+
3
C24
4.7uF 16V
+12V
3
D7
D6
D5
D4
D3
D2
D1
D0
D8
D9
D10
D11
D12
D13
D14
D15
LA23
LA22
LA21
LA20
LA19
LA18
LA17
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
4
4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
AT CON-C
/SBHE
LA23
LA22
LA21
LA20
LA19
LA18
LA17
/MEM R
/MEMW
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
J4
AT CON-A
/IOCHCK
SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0
IOCHRDY
AEN
SA19
SA18
SA17
SA16
SA15
SA14
SA13
SA12
SA11
SA10
SA9
SA8
SA7
SA6
SA5
SA4
SA3
SA2
SA1
SA0
J2
GND
RESET
+5V
IRQ9
-5V
DRQ2
-12V
OWS
+12V
GND
/SMEMW
/SMEMR
/IOW
/IOR
/DACK3
DRQ3
/DACK1
DRQ1
/REFRESH
CLK
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3
/DACK2
T/C
BALE
+5V
OSC
GND
5
/MEMCS16
/IOCS16
IRQ10
IRQ11
IRQ12
IRQ15
IRQ14
/DACK0
DRQ0
/DACK5
DRQ5
/DACK6
DRQ6
/DACK7
DRQ7
+5V
MASTER
GND
AT CON-D
J5
AT CON-B
J3
5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
VCC
VCC
+12V
6
VCC
6
10K
R32
VCC
R30
10K
Document Number
Tuesday, March 24, 1998
7
Size
B
Date:
SDU1355B0C ISA Bus Evaluation Board
Epson Research & Development, Inc.
7
Sheet
3
MCS1 6#
BALE
RFSH#
BUSCLK
RESET
8
8
of
4
Rev
1.0
D
C
B
A
Epson Research and Development
Vancouver Design Center
Page 21
Figure 3: SED1355B0C Schematic Diagram (3 of 4)
SED1355
X23A-G-004-04
D
C
B
D[0..15]
VCC
1
C29
0.1uF
VIN
D[0..15]
3
U10
LT1117CM- 3.3
ADJ
D12
D14
D8
D10
D4
D6
D0
D2
2
2
+12V
WE0#
CS#
WE1#
RESET#
VOUT
FPDAT[0..15]
+
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
HEADER 17X2
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
H1
C30
1uF 6V
3.3V
FPDAT[0..15]
3
2
1
2
FPSHIFT
FPSHIFT2
FPLINE
FPFRAME
LCDPWR#
3
FPDAT8
FPDAT9
FPDAT10
FPDAT11
FPDAT12
FPDAT13
FPDAT14
FPDAT15
FPDAT0
FPDAT1
FPDAT2
FPDAT3
FPDAT4
FPDAT5
FPDAT6
FPDAT7
LCDVCC
+12V
WAIT#
M/R#
D13
D15
D9
D11
D5
D7
D1
D3
VCC
JP2
HEADER 3
3
A[0..19]
1
19
2
4
6
8
11
13
15
17
1
19
2
4
6
8
11
13
15
17
1
19
2
4
6
8
11
13
15
17
4
VCC
GND
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
VCC
GND
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
VCC
GND
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
A[0..19]
74AHC244
1G
2G
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
U9
74AHC244
1G
2G
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
U8
74AHC244
1G
2G
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
U7
4
20
10
18
16
14
12
9
7
5
3
20
10
18
16
14
12
9
7
5
3
20
10
18
16
14
12
9
7
5
3
VCC
BUSCLK
A20
RD/WR#
5
A14
A16
A18
A8
A10
A12
A0
A2
A4
A6
C28
0.1uF
C27
0.1uF
C25
0.1uF
5
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
HEADER 17X2
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
H2
FPL
FPF
FPD0
FPD1
FPD2
FPD3
FPD4
FPD5
FPD6
FPD7
FPD8
FPD9
FPD10
FPD11
FPD12
FPD13
FPD14
FPD15
FPS
6
6
VCC
A15
A17
A19
A9
A11
A13
A1
A3
A5
A7
BS#
RD#
1
2
3
SED1355
X23A-G-004-04
1
A
1
JP1
HEADER 3
FPS2
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
LCDP#
+12V
Document Number
Tuesday, March 24, 1998
7
Size
B
Date:
SDU1355B0C ISA Bus Evaluation Board
Epson Research & Development, Inc.
CON40A
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
J6
COLOR/MONO LC
D CONNECTOR
7
Sheet
VDDH
VEEH
4
8
8
of
4
Rev
1.0
D
C
B
A
Page 22
Epson Research and Development
Vancouver Design Center
Figure 4: SED1355B0C Schematic Diagram (4 of 4)
SDU1355B0C Rev. 1.0 ISA Bus Evaluation Board User Manual
Issue Date: 98/10/30
SDU1355-D9000
Evaluation Board User Manual
Document Number: X23A-G-002-03
Copyright © 1998 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners
Microsoft and Windows are registered trademarks of Microsoft Corporation.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SDU1355-D9000
X23A-G-002-03
Evaluation Board User Manual
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 3
Table of Contents
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1
3
SED1355 Embedded RAMDAC LCD/CRT Controller . . . . . . . . . . . . . . . . . . .8
2.1.1
Display Buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.1.2
LCD Display Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2.1.3
Touchscreen Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1.4
CRT Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1.5
Jumper Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1.6
Adjustable LCD BIAS Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
D9000 Specifics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1
Interface Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1.1
Connector Pinout for Channel A6 and A7 . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1.2
Memory Address (CS#, M/R#) Decoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.2
FPGA Code Functionality
3.3
Board Dimensions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5
Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6
Component Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Evaluation Board User Manual
Issue Date: 98/10/30
SDU1355-D9000
X23A-G-002-03
Page 4
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SDU1355-D9000
X23A-G-002-03
Evaluation Board User Manual
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 5
List of Tables
Table 2-1:
LCD Connector Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 2-2:
Touchscreen Header (TS1) Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 2-3:
Touchscreen Header Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 3-1:
Connectors Pinout for Channel A7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 3-2:
Connectors Pinout for Channel A6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
List of Figures
Figure 5-1:
SDU1355-D9000 Schematic Diagram (1 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 5-2:
SDU1355-D9000 Schematic Diagram (2 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 5-3:
SDU1355-D9000 Schematic Diagram (3 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 6-1:
Component Placement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Evaluation Board User Manual
Issue Date: 98/10/30
SDU1355-D9000
X23A-G-002-03
Page 6
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SDU1355-D9000
X23A-G-002-03
Evaluation Board User Manual
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 7
1 Introduction
The Hitachi D9000 Development System/Microsoft Windows® CE ODO Reference Platform uses
expansion boards to interface peripherals to the FPGA/processor combination. This manual
describes how the SDU1355-D9000 Evaluation Board is used to provide a color LCD/CRT solution
for the Windows CE environment.
Reference
SED1355 Hardware Functional Specification, document number X23A-A-001-xx.
D9000 Development System, Hardware User Manual - Hitachi.
Evaluation Board User Manual
Issue Date: 98/10/30
SDU1355-D9000
X23A-G-002-03
Page 8
Epson Research and Development
Vancouver Design Center
2 Features
• SED1355 Embedded RAMDAC LCD/CRT controller.
• 4/8-bit monochrome or 4/8/16-bit color LCD interface for single-panel, single-drive displays.
• 8-bit monochrome or 8/16-bit color LCD interface for dual-panel, dual-drive displays.
• Direct support for 9/12-bit TFT/D-TFD; 18-bit TFT/D-TFD is supported to 64K colors (16-bit
data).
• Direct CRT support to 64K colors using the SED1355 embedded RAMDAC.
• Up to 16 shades of gray using Frame Rate Modulation (FRM) on monochrome passive LCD
panels.
• Up to 4096 colors on color passive LCD panels; three 256x4 Look-Up Tables (LUT) are used
to map 1/2/4/8 bpp modes into these colors, 15/16 bpp modes are mapped directly using the
four most significant bits of the red, green and blue colors.
• Up to 64K colors on TFT/D-TFD and CRT; three 256x4 Look-Up Tables are used to map
1/2/4/8 bpp modes into 4096 colors, 15/16 bpp modes are mapped directly.
• On-board 2M byte EDO-DRAM display buffer.
• On-board adjustable LCD bias voltage power supply.
• SmallTypeZ x 2 form factor (requires two side-by-side SmallTypeZ slots).
2.1 SED1355 Embedded RAMDAC LCD/CRT Controller
The SED1355 is a low cost, low power, color/monochrome LCD/CRT controller with an embedded
RAMDAC capable of interfacing to a wide range of CPUs and LCD displays.
The SED1355 supports LCD interfaces with data widths up to 16-bits. Using Frame Rate
Modulation (FRM), it can display 16 shades of gray on monochrome panels, up to 4096 colors on
passive panels and 64K colors on active matrix TFT/D-TFD. CRT support is handled through the
use of an embedded RAMDAC allowing simultaneous display of both the CRT and LCD displays.
In this design, the SED1355 has a 3.3V supply voltage for both logic and the embedded RAMDAC.
For complete details on register functionality and programming, refer to the SED1355 Hardware
Functional Specification, document number X23A-A-001-xx, and the SED1355 Programming
Notes and Examples, document number X23A-G-003-xx.
2.1.1 Display Buffer
The SED1355 supports a 512K byte or 2M byte FPM-DRAM or EDO-DRAM display buffer. On
the SDU1355-D9000 evaluation board a 1Mx16 EDO-DRAM (2M byte) is used to provide memory
for all supported display resolutions, and when smaller display sizes are used, to provide multiple
“pages” of memory.
SDU1355-D9000
X23A-G-002-03
Evaluation Board User Manual
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 9
2.1.2 LCD Display Support
The SED1355 provides a wide range of flexibility for display type and resolution. Display types
include:
• 4/8-bit monochrome passive.
• 4/8/16-bit color passive.
• 9/12/18-bit Active matrix TFT/D-TFD.
• other (EL, REC, etc.).
Display resolutions range from 4x1 to 800x600, with color depths from black-and-white to 64K
colors.
The LCD connector is a 2 x 20 pin, 0.100", straight header. Pinout assignment is shown in the
following table “LCD Connector Pinout”.
Evaluation Board User Manual
Issue Date: 98/10/30
SDU1355-D9000
X23A-G-002-03
Page 10
Epson Research and Development
Vancouver Design Center
Table 2-1: LCD Connector Pinout
Pin #
SED1355F0A
Pin Names
9-bit
12-bit
18-bit
8-bit
16-bit
1
FPDAT[0]
R2
R3
R5
LD0
LD0
LD0
3
FPDAT[1]
R1
R2
R4
LD1
LD1
LD1
5
FPDAT[2]
R0
R1
R3
LD2
LD2
LD2
7
FPDAT[3]
G2
G3
G5
LD3
LD3
9
FPDAT[4]
G1
G2
G4
UD0
UD0
UD0
UD0
UD0
11
FPDAT[5]
G0
G1
G3
UD1
UD1
UD1
UD1
UD1
13
FPDAT[6]
B2
B3
B5
UD2
UD2
UD2
UD2
UD2
15
FPDAT[7]
B1
B2
B4
UD3
UD3
UD3
UD3
UD3
17
FPDAT[8]
B0
B1
B3
LD4
R0
R2
LD5
R1
LD6
19
FPDAT[9]
21
FPDAT[10]
23
FPDAT[11]
25
FPDAT[12]
27
FPDAT[13]
29
FPDAT[14]
31
FPDAT[15]
33
FPSHIFT
35 or 38
DRDY
Color TFT/D-TFD
G0
B0
Color STN
4-bit
Mono STN
G2
LD7
G1
UD4
G0
UD5
B2
UD6
B1
4-bit
Comments
8-bit
LD3
UD7
FPSHIFT
DRDY
MOD/FPSHIFT2
Jumper
selectable
37
FPLINE
FPLINE
39
FPFRAME
FPFRAME
2, 4, 6, 8,
10, 12, 14,
16, 18, 20,
22, 24, 26
GND
28
LCDBACK#
On/Off
Control for
Backlight
32
LCDVCC
Selectable
3.3V/5V
34
+12V
36
VDDH
+30v LCD
bias
40
LCDPWR#
On/Off
Control for
LCD Power
SDU1355-D9000
X23A-G-002-03
Evaluation Board User Manual
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 11
2.1.3 Touchscreen Support
If the LCD panel being used has an integrated Touchscreen, the touchscreen interface signals are
connected to header strip TS1. These signals are then routed through JP3 and into the standard
"Platform II Audio/Touch" peripheral board. Pinout assignment is described in the table below.
Table 2-2: Touchscreen Header (TS1) Pinout
Pin #
Signal
1
XR
2
XL
3
YU
4
YL
5
XY
6
GND
2.1.4 CRT Support
The SED1355 has an embedded RAMDAC and provides complete one-chip CRT support. Refer to
the Programmer’s Notes and Examples, document number X23A-G-003-xx, for programming
details.
2.1.5 Jumper Selection
Jumpers labelled LCDVCC1 and FPS2 provide LCD logic supply voltage and connector pinout
options respectively. Jumper options are described in the table below.
Table 2-3: Touchscreen Header Pinout
Jumper
Function
1-2
2-3
LCDVCC1
LCD logic supply
3.3V
5V
FPS2
FPSHIFT2/DRDY/MOD
To pin 38
To pin 35
= default settings
Note
Setting the panel supply voltage to 5V does not affect the signalling voltage which remains at
3.3V.
2.1.6 Adjustable LCD BIAS Power Supply
Many color passive LCD panels require a positive power supply to provide the LCD BIAS voltage.
Such a power supply has been provided as an integral part of this design. The signal VDDH can be
adjusted by R16 to provide an output voltage from +24V to +38V (Iout = 45mA) and is
enabled/disabled by the SED1355 control signal LCDPWR.
Evaluation Board User Manual
Issue Date: 98/10/30
SDU1355-D9000
X23A-G-002-03
Page 12
Epson Research and Development
Vancouver Design Center
LCDPWR is an output signal which follows a pre-defined power-up/power-down sequence
designed to protect the LCD panel from damage caused by the power supply being enabled in the
absence of control signals. Determine the panel’s specific power requirements and set the
potentiometer accordingly before connecting the panel.
SDU1355-D9000
X23A-G-002-03
Evaluation Board User Manual
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 13
3 D9000 Specifics
3.1 Interface Signals
The SDU1355-D9000 is designed to support the standard Register Interface of the Windows CE
development platform together with the FPGA code that comes with the board.
3.1.1
Connector Pinout for Channel A6 and A7
Table 3-1: Connectors Pinout for Channel A7
Channel A7
Pin #
FPGA Signal
SED1355 Signal
Pin #
FPGA Signal
SED1355 Signal
SmXY
1
chA7p1
BCLK
21
dc5v
DC5V
2
chA7p2
N/C
22
GND
GND
3
chA7p3
N/C
23
dc3v
DC3V
4
chA7p4
N/C
24
GND
GND
5
chA7p5
N/C
25
dc3v
DC3V
6
chA7p6
N/C
26
GND
GND
7
chA7p7
N/C
27
dc3vs
N/C
8
chA7p8
N/C
28
GND
GND
9
chA7p9
N/C
29
dc12v
DC12V
10
chA7p10
N/C
30
GND
GND
11
ib8
N/C
31
battery
N/C
12
ib7
N/C
32
GND
GND
13
ib6
N/C
33
dcXA
N/C
14
ib5
N/C
34
base5vDc
N/C
15
ib4
N/C
35
dcXB
N/C
16
ib3
N/C
36
GND
GND
17
ib2
N/C
37
dcXC
N/C
18
ib1
N/C
38
GND
GND
19
GND
GND
39
senseH
N/C
20
GND
GND
40
senseL
N/C
Evaluation Board User Manual
Issue Date: 98/10/30
SDU1355-D9000
X23A-G-002-03
Page 14
Epson Research and Development
Vancouver Design Center
Table 3-1: Connectors Pinout for Channel A7 (Continued)
Channel A7
Pin #
FPGA Signal
SED1355 Signal
Pin #
FPGA Signal
SED1355 Signal
SmZ
1
chA7p11
N/C
21
GND
GND
2
chA7p12
N/C
22
GND
GND
3
chA7p13
A20
23
chA7p34
A19
4
chA7p14
A18
24
GND
GND
5
chA7p15
A17
25
GND
GND
6
chA7p16
A16
26
GND
GND
7
chA7p17
N/C
27
chA7p33
A15
8
chA7p18
A14
28
GND
GND
9
chA7p19
A13
29
GND
GND
10
chA7p20
A12
30
GND
GND
11
chA7p21
A11
31
chA7p32
A10
12
chA7p22
A9
32
GND
GND
13
chA7p23
A8
33
GND
GND
14
chA7p24
A7
34
GND
GND
15
chA7p25
A6
35
GND
GND
16
chA7p26
A5
36
chA7p31
A4
17
chA7p27
A3
37
GND
GND
18
chA7p28
A2
38
GND
GND
19
chA7p29
A1
39
GND
GND
20
chA7p30
A0
40
GND
GND
SDU1355-D9000
X23A-G-002-03
Evaluation Board User Manual
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 15
Table 3-2: Connectors Pinout for Channel A6
Channel A6
Pin #
FPGA Signal
SED1355 Signal
Pin #
FPGA Signal
SED1355 Signal
SmXY
1
chA6p1
CS#
21
dc5v
DC5V
2
chA6p2
BS#
22
GND
GND
3
chA6p3
WE0#
23
dc3v
DC3V
4
chA6p4
RD/WR#
24
GND
GND
5
chA6p5
WAIT#
25
dc3v
DC3V
6
chA6p6
N/C
26
GND
GND
7
chA6p7
N/C
27
dc3vs
N/C
8
chA6p8
N/C
28
GND
GND
9
chA6p9
N/C
29
dc12v
DC12V
10
chA6p10
N/C
30
GND
GND
11
ib1
XL
31
battery
N/C
12
ib2
XR
32
GND
GND
13
ib3
YU
33
dcXA
N/C
14
ib4
YL
34
base5vDc
N/C
15
ib5
N/C
35
dcXB
N/C
16
ib6
N/C
36
GND
GND
17
ib7
N/C
37
dcXC
N/C
18
ib8
XY
38
GND
GND
19
GND
GND
39
senseH
N/C
20
GND
GND
40
senseL
N/C
Evaluation Board User Manual
Issue Date: 98/10/30
SDU1355-D9000
X23A-G-002-03
Page 16
Epson Research and Development
Vancouver Design Center
Table 3-2: Connectors Pinout for Channel A6 (Continued)
Channel A6
Pin #
FPGA Signal
SED1355 Signal
Pin #
FPGA Signal
SED1355 Signal
SmZ
1
chA6p11
M/R#
21
GND
GND
2
chA6p12
RD#
22
GND
GND
3
chA6p13
WE1#
23
chA6p34
N/C
4
chA6p14
RESET#
24
GND
GND
5
chA6p15
N/C
25
GND
GND
6
chA6p16
N/C
26
GND
GND
7
chA6p17
N/C
27
chA6p33
D15
8
chA6p18
D14
28
GND
GND
9
chA6p19
D13
29
GND
GND
10
chA6p20
D12
30
GND
GND
11
chA6p21
D11
31
chA6p32
D10
12
chA6p22
D9
32
GND
GND
13
chA6p23
D8
33
GND
GND
14
chA6p24
D7
34
GND
GND
15
chA6p25
D6
35
GND
GND
16
chA6p26
D5
36
chA6p31
D4
17
chA6p27
D3
37
GND
GND
18
chA6p28
D2
38
GND
GND
19
chA6p29
D1
39
GND
GND
20
chA6p30
D0
40
GND
GND
SDU1355-D9000
X23A-G-002-03
Evaluation Board User Manual
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 17
3.1.2 Memory Address (CS#, M/R#) Decoding
The SED1355 is a memory-mapped device for both the registers and the display buffer access. The
specific memory address is solely controlled by the CS# and M/R# decode logic. The memory space
requirements are:
• A 2M byte linear address range for the display buffer.
• 47 bytes for the registers.
With the FPGA code that comes with this board, the registers are located at 0x12000000 and the
display buffer is located at 0x12200000.
3.2 FPGA Code Functionality
The D9000/ODO is a flexible hardware/software development system designed for use with the
Microsoft Windows CE operating system. It is designed so that an arbitrary set of peripherals may
be quickly compiled in a way that is identical to the final product. A 100K FPGA is at the center of
the system and sits between the CPU and all other peripherals. Most peripherals, except analog
components, are implemented within the FPGA.
In order to support several different CPUs, any peripherals that connect to the system have to use a
common Register Interface. This interface is similar to a standard bus, in that it allows the CPU to
read and write registers associated with the peripheral. For each peripheral, whether implemented
internal or external to the FPGA, a VHDL module has to be written to implement the register
interface and to assign the necessary signals to the slot where the peripheral is going to be located.
The D9000/ODO platform supports 32-bit accesses to peripherals. The SED1355 provides a 16-bt
CPU interface, and therefore, the FPGA files provided with the SDU1355-D9000 convert any 32bit accesses to back-to-back 16-bit cycles.
3.3 Board Dimensions
To obtain the required number of interface signals, the SDU1355-D9000 utilizes two SmallTypeZ
slots (6 and 7). Board dimensions are 2.65 x 3.20cm with both the CRT and LCD connectors accessible on the outside edge.
Evaluation Board User Manual
Issue Date: 98/10/30
SDU1355-D9000
X23A-G-002-03
Page 18
Epson Research and Development
Vancouver Design Center
4 Parts List
Item #
Qty
Reference
Part
1
20
C1,C2,C3,C4,C5,C6,C7,
C8,C9,C11,C21,C26,C27,C29,
C34,C35,C37,C38, C39,C40
0.1uF
0.1uF ceramic capacitor
2
5
C10,C24,C25,C32,C33
10uF
10uF tantalum capacitor
3
1
C17
47uF/10V
47uF/10V tantalum capacitor
4
1
C18
22uF/63V
22uF/63V electrolytic, aluminum can capacitor
5
1
C20
10uF/63V
6
2
C22,C30
4.7uF
4.7uF tantalum capacitor
7
3
D1,D2,D3
BAV99
BAV99 signal diode
8
2
FPS2,LCDVCC1
Header
Header, 3x1, .1"
9
1
JP2,JP3,JP4,JP5
10
1
J1
PS/2 Connector
11
1
LCD1
Header
12
5
L1,L2,L3,L4,L5
Ferrite bead
13
1
L6
1uH
1uH inductor
14
1
Q1
MMBT2222A
MMBT2222A
15
7
R1,R2,R5,R6,R7,R8,R17
15K
16
3
R9,R10,R11
150 1%
17
2
R12,R13
39
18
1
R15
470K
19
1
R16
200K Pot.
20
4
R18,R19,R20,R27
10K
21
1
R21
1.5K 1%
22
1
R22
1K 1%
1K 1%
23
1
R23
140 1%
140 Ohms 1%
24
1
TS1
Header
Header, 3x2, .1"
25
1
U1
SED1355F0A
26
1
U2
DRAM1MX16-SOJ-3.3V
27
1
U4
RD-0412
28
1
U5
33.333MHz
SDU1355-D9000
X23A-G-002-03
Description
10uF/63V electrolytic, aluminum can capacitor
D9000 SmallTypeX/Y/Z D9000 SmallTypeX/Y/Z connector. Samtec
connector
TFM-120-11-S-D
15-pin VGA connector
Header, 20x2, .1"
Ferrite bead on wire
15K
150 1%
39 Ohms
470K
200K potentiometer
10K
1.5K 1%
SED1355F0A
DRAM1MX16-SOJ-3.3V, Micron
MT4LC1M16E5DJ-6
RD-0412, Xentek
33.333MHz 8-DIP Oscillator
Evaluation Board User Manual
Issue Date: 98/10/30
A
B
C
DC3V
DC5V
DC3V
1
C4
0.1uF
0.1uF
C21
L1
C11
0.1uF
L2
C5
0.1uF
NC
OUT
33.333MHz SMT
GND
VCC
4
8
OUT
NC
C6
0.1uF
+
1
5
1
5
C10
10uF
2
AVCC
C38
0.1uF
33.333MHz TH
GND
VCC
U5
(Dual PCB footprint)
4
8
U6
AVCC
C39
0.1uF
C40
0.1uF
BCLK
WAIT#
CS#
M/R#
RESET#
RD/WR#
WE1#
WE0#
RD#
BS#
D[0..15]
A[0..20]
C1
0.1uF
R27
10K
3
C2
0.1uF
DC3V
D[0..15]
A[0..20]
3
C3
0.1uF
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
70
98
106
14
32
50
68
78
87
96
110
99
102
104
12
33
55
72
97
109
69
13
15
4
5
11
10
9
8
7
6
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
3
2
1
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
4
4
SED1355F0A
TEST EN
DAC_VSS1
DAC_VSS2
VSS1
VSS2
VSS3
VSS4
VSS5
VSS6
VSS7
VSS8
DAC_VDD1
DAC_VDD2
DAC_VDD3
VDD1
VDD2
VDD3
VDD4
VDD5
VDD6
CLKI
BUSCLK
WAIT#
CS#
M/R#
RESET#
RD/WR#
WE1#
WE0#
RD#
BS#
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
DB8
DB9
DB10
DB11
DB12
DB13
DB14
DB15
AB0
AB1
AB2
AB3
AB4
AB5
AB6
AB7
AB8
AB9
AB10
AB11
AB12
AB13
AB14
AB15
AB16
AB17
AB18
AB19
AB20
U1
AVCC
101
108
107
105
103
100
79
80
81
82
83
84
85
86
88
89
90
91
92
93
94
95
73
74
77
76
71
75
5
R22
1K 1%
FPDAT0
FPDAT1
FPDAT2
FPDAT3
FPDAT4
FPDAT5
FPDAT6
FPDAT7
FPDAT8
FPDAT9
FPDAT10
FPDAT11
FPDAT12
FPDAT13
FPDAT14
FPDAT15
MD0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
MD8
MD9
MD10
MD11
MD12
MD13
MD14
MD15
35
37
39
41
43
45
47
49
48
46
44
42
40
38
36
34
54
51
52
53
MA0
MA1
MA2
MA3
MA4
MA5
MA6
MA7
MA8
MA9
61
63
65
67
66
64
62
60
58
56
59
57
1.5K 1%
R21
IREF
VRTC
HRTC
BLUE
GREEN
RED
FPDAT0
FPDAT1
FPDAT2
FPDAT3
FPDAT4
FPDAT5
FPDAT6
FPDAT7
FPDAT8
FPDAT9
FPDAT10
FPDAT11
FPDAT12
FPDAT13
FPDAT14
FPDAT15
FPFRAME
FPLINE
FPSHIFT
DRDY
SUSPEND#
LCDPWR
RAS#
LCAS#
UCAS#
WE#
MD0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
MD8
MD9
MD10
MD11
MD12
MD13
MD14
MD15
MA0
MA1
MA2
MA3
MA4
MA5
MA6
MA7
MA8
MA9/GPIO3
MA10/GPIO1
MA11/GPIO2
5
R23
140 1%
Q1
MMBT2222A
6
R9
150 1%
6
R11
150 1%
3
R13
R12
L5
D1
BAV99
D2
BAV99
3
39
39
AVCC
7
2
3
D3
BAV99
Date:
Size
B
Monday, February 23, 1998
7
Document Number
Sheet
EPSON RESEARCH AND DEVE LOPMENT INC.
Titl e
SDU1355-D9000
L4
FPDAT[0..15]
FPFRAME
FPLINE
FPSHIFT
FPSHIFT2
LCDBACK#
LCDPWR#
RAS#
LCAS#
UCAS#
WE#
MD[0..15]
MA[0..9]
R10
150 1%
L3
MD[0..15]
MA[0..9]
2
1
D
2
2
1
Evaluation Board User Manual
Issue Date: 98/10/30
1
1
1
6
1
11
7
2
12
8
3
13
9
4
14
10
5
15
8
of
3
Rev
6.0
PS/2 CONNECTOR
J1
8
A
B
C
D
Epson Research and Development
Vancouver Design Center
Page 19
5 Schematic Diagrams
Figure 5-1: SDU1355-D9000 Schematic Diagram (1 of 3)
SDU1355-D9000
X23A-G-002-03
A
B
C
D
1
FPDAT[0..15]
FPSHIFT2
FPLINE
FPFRAME
FPSHIFT
FPDAT[0..15]
WE#
RAS#
UCAS#
LCAS#
MA[0..9]
2
FPDAT0
FPDAT1
FPDAT2
FPDAT3
FPDAT4
FPDAT5
FPDAT6
FPDAT7
FPDAT8
FPDAT9
FPDAT10
FPDAT11
FPDAT12
FPDAT13
FPDAT14
FPDAT15
MA[0..9]
MD[0..15]
LCD conne
CK2
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
29
11
12
32
13
14
30
31
17
18
19
20
23
24
25
26
27
28
16
15
ctor
HEADER 3
1
2
3
FPS2
HEADER 20X2
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
LCD1
MA0
MA1
MA2
MA3
MA4
MA5
MA6
MA7
MA8
MA9
3
LCDPWR#
VDDH
DC12V
LCDBACK#
DRAM1MX16-SOJ-3.3V
/OE
NC
NC
NC
/W
/RAS
/UCAS
/LCAS
A0
A1
A2
A3
A4
A5
A6
A7
A8R/A8
A9R/A9
A10/NC
A11/NC
U2
3
VSS
VSS
VSS
VCC
VCC
VCC
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
Touchs
DC3V
XR
YU
XY
MD0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
MD8
MD9
MD10
MD11
MD12
MD13
MD14
MD15
DC5V
HEADER 3
1
2
3
LCDVCC1
22
37
42
1
6
21
2
3
4
5
7
8
9
10
33
34
35
36
38
39
40
41
2
4
6
HEADER 3X2
1
3
5
TS1
C8
0.1uF
creen connector
4
C7
0.1uF
4
XL
YL
LCDPWR#
C9
0.1uF
DC3V
DC5V
R25
n/p
R26
n/p
6
5
+
RD-0412
U4
wait#, Little Endian, generic 16-bit bus.
pin 71 = gpo#, symmetrical 1M x 16 DRAM,
busclk/1, primary host bus, lcdpwr#,
MD[12:0] = 0, 0, 1, 1, X, 01, 0, 1, 011, 0, meaning:
MD1
MD2
MD4
MD6
MD9
MD10
MD3
MD5
5
C17
47uF/10V
6
R1
15K
DC_OUT
MD[0..15]
2
DC_IN
2
REMOTE
3
GND
GND
GND
GND
GND
GND
GND
4
5
6
7
8
10
11
NC
9
VOUT_ADJ
1
SDU1355-D9000
X23A-G-002-03
12
1
R5
15K
+
C18
22uF/63V
7
+
R6
15K
C20
10uF/63V
R7
15K
VDDH
Date:
Size
B
Monday, February 23, 1998
7
Document Number
Sheet
EPSON RESEARCH AND DEVE LOPMENT INC.
Titl e
SDU1355-D9000
R17
15K
200K
POT
R16
1uH
L6
LCD bias generator
R2
15K
R15
470K
DC3V
2
R8
15K
8
8
of
3
Rev
6.0
A
B
C
D
Page 20
Epson Research and Development
Vancouver Design Center
Figure 5-2: SDU1355-D9000 Schematic Diagram (2 of 3)
Evaluation Board User Manual
Issue Date: 98/10/30
Evaluation Board User Manual
Issue Date: 98/10/30
A
B
C
D
1
1
A[0..20]
M/R#
RD#
WE1#
RESET#
D[0..15]
A[0..20]
D[0..15]
R19
10K
2
2
A14
A13
A12
A11
A9
A8
A7
A6
A5
A3
A2
A1
A0
A20
A18
A17
A16
D14
D13
D12
D11
D9
D8
D7
D6
D5
D3
D2
D1
D0
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
A10_SmZ
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
JP4
A11_SmZ
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
JP2
3
3
A4
A10
A15
A19
D4
D10
D15
4
4
XY
XL
XR
YU
YL
BCLK
CS#
BS#
WE0#
RD/WR#
WAIT#
DC3V
5
R20
10K
DC3V
5
R18
10K
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
A10_SmXY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
JP5
A11_SmXY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
JP3
+
6
+
6
C33
10uF
C25
10uF
C34
0.1uF
C26
0.1uF
+
C30
4.7uF
C35
0.1uF
C27
0.1uF
+
+
C32
10uF
C24
10uF
DC3V
DC5V
DC12V
C37
0.1uF
C29
0.1uF
DC12V
DC3V
DC5V
Date:
Size
B
Monday, February 23, 1998
7
Document Number
Sheet
EPSON RESEARCH AND DEVE LOPMENT INC.
Titl e
SDU1355-D9000
+
C22
4.7uF
7
3
8
8
of
3
Rev
6.0
A
B
C
D
Epson Research and Development
Vancouver Design Center
Page 21
Figure 5-3: SDU1355-D9000 Schematic Diagram (3 of 3)
SDU1355-D9000
X23A-G-002-03
Page 22
Epson Research and Development
Vancouver Design Center
6 Component Placement
Figure 6-1: Component Placement
SDU1355-D9000
X23A-G-002-03
Evaluation Board User Manual
Issue Date: 98/10/30
SED1355 Embedded RAMDAC LCD/CRT Controller
Power Consumption
Document Number: X23A-G-006-02
Copyright © 1998 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-006-02
Power Consumption
Issue Date: 98/10/30
Epson Research and Development
Vancouver Design Center
Page 3
1 SED1355 Power Consumption
SED1355 power consumption is affected by many system design variables.
• Input clock frequency (CLKI): the CLKI frequency determines the LCD frame-rate, CPU performance to memory, and other functions – the higher the input clock frequency, the higher the
frame-rate, performance and power consumption.
• CPU interface: the SED1355 current consumption depends on the BUSCLK frequency, data
width, number of toggling pins, and other factors – the higher the BUSCLK, the higher the CPU
performance and power consumption.
• VDD voltage level: the voltage level affects power consumption – the higher the voltage, the
higher the consumption.
• Display mode: the resolution and color depth affect power consumption – the higher the
resolution/color depth, the higher the consumption.
• Internal CLK divide: internal registers allow the input clock to be divided before going to the
internal logic blocks – the higher the divide, the lower the power consumption.
There are two power save modes in the SED1355: Software and Hardware SUSPEND. The power
consumption of these modes is affected by various system design variables.
• DRAM refresh mode (CBR or self-refresh): self-refresh capable DRAM allows the SED1355 to
disable the internal memory clock thereby saving power.
• CPU bus state during SUSPEND: the state of the CPU bus signals during SUSPEND has a
substantial effect on power consumption. An inactive bus (e.g. BUSCLK = low, Addr = low etc.)
reduces overall system power consumption.
• CLKI state during SUSPEND: disabling the CLKI during SUSPEND has substantial power
savings.
Power Consumption
Issue Date: 98/10/30
SED1355
X23A-G-006-02
Page 4
Epson Research and Development
Vancouver Design Center
1.1 Conditions
Table 1-1: “SED1355 Total Power Consumption” below gives an example of a specific environment
and its effects on power consumption.
Table 1-1: SED1355 Total Power Consumption
Test Condition
VDD = 3.3V
ISA Bus (8MHz)
Total Power Consumption
Gray Shades /
Colors
Power Save Mode
Active
Software
Hardware
Input Clock = 6MHz
Black-and-White
LCD Panel = 320x240 4-bit Single Monochrome 4 Gray Shades
16 Gray Shades
18.6mW
20.3mW
22.8mW
4.29mW1
0.33µW2
2
Input Clock = 6MHz
LCD Panel = 320x240 8-bit Single Color
4 Colors
16 Colors
256 Colors
22.3mW
25.3mW
29.0mW
4.32mW1
0.33µW2
3
Input Clock = 25MHz
LCD Panel = 640x480 8-bit Dual Monochrome
Black-and-White
16 Gray Shades
58.5mW
71.7mW
5.71mW1
0.33µW2
4
Input Clock = 25MHz
LCD Panel = 640x480 16-bit Dual Color
16 Colors
256 Colors
64K Colors
93.4mW
98.1mW
101.3mW
5.74mW1
0.33µW2
16 Colors
256 Colors
64K Colors
221.1mW
234.0mW
237.3mW
6.34mW1
0.33µW2
1
5
Input Clock = 33.333MHz
CRT = 640x480 Color
Note
1. Conditions for Software SUSPEND:
• CPU interface active (signals toggling)
• CLKI active
• Self-Refresh DRAM
2. Conditions for Hardware SUSPEND:
• CPU interface inactive (high impedance)
• CLKI stopped
• Self-Refresh DRAM
2 Summary
The system design variables in Section 1, “SED1355 Power Consumption” and in Table 1-1:
“SED1355 Total Power Consumption” show that SED1355 power consumption depends on the
specific implementation. Active Mode power consumption depends on the desired CPU performance and LCD frame-rate, whereas Power Save Mode consumption depends on the CPU Interface
and Input Clock state.
In a typical design environment, the SED1355 can be configured to be an extremely power-efficient
LCD Controller with high performance and flexibility.
SED1355
X23A-G-006-02
Power Consumption
Issue Date: 98/10/30
SED1355 Embedded RAMDAC LCD/CRT Controller
Interfacing to the Philips MIPS
PR31500/PR31700 Processor
Document Number: X23A-G-001-06
Copyright © 1998, 1999 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Page 0
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-001-06
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 1
Table of Contents
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Interfacing to the PR31500/PR31700 . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3
SED1355 Host Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 PR31500/PR31700 Host Bus Interface Pin Mapping . . . . . . . . . . . . . . . . 7
3.2 PR31500/PR31700 Host Bus Interface Signals . . . . . . . . . . . . . . . . . . 8
4
Direct Connection to the Philips PR31500/PR31700 . .
4.1 Hardware Description . . . . . . . . . . . . . .
4.2 SED1355 Configuration . . . . . . . . . . . . .
4.3 Memory Mapping and Aliasing . . . . . . . . . .
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
. 9
.9
10
11
5
System Design Using the IT8368E PC Card Buffer
5.1 Hardware Description . . . . . . . . . . . .
5.2 IT8368E Configuration . . . . . . . . . . . .
5.3 SED1355 Configuration . . . . . . . . . . .
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
12
12
13
13
6
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.1 Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.2 Document Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8
Technical Support . . . . . . . . . . . . . .
8.1 EPSON LCD/CRT Controllers (SED1355) .
8.2 Philips MIPS PR31500/PR31700 Processor .
8.3 ITE IT8368E . . . . . . . . . . . . .
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Issue Date: 99/05/05
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
16
16
16
16
SED1355
X23A-G-001-06
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-001-06
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 3
List of Tables
Table 3-1: PR31500/PR31700 Host Bus Interface Pin Mapping . . . . . . . . . . . . . . . . . . . . 7
Table 4-1: SED1355 Configuration for Direct Connection . . . . . . . . . . . . . . . . . . . . . . 10
Table 4-2: PR31500/PR31700 to PC Card Slots Address Remapping for Direct Connection . . . . 11
List of Figures
Figure 4-1: Typical Implementation of Direct Connection . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 5-1: IT8368E Implementation Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . 12
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Issue Date: 99/05/05
SED1355
X23A-G-001-06
Page 4
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-001-06
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 5
1 Introduction
This application note describes the hardware and software environment necessary to
provide an interface between the SED1355 Embedded RAMDAC LCD/CRT Controller
and the Philips MIPS PR31500/PR31700 Processor.
The designs described in this document are presented only as examples of how such
interfaces might be implemented. This application note will be updated as appropriate.
Please check the Epson Electronics America website at http://www.eea.epson.com for the
latest revision of this document before beginning any development.
We appreciate your comments on our documentation. Please contact us via email at
[email protected]
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Issue Date: 99/05/05
SED1355
X23A-G-001-06
Page 6
Epson Research and Development
Vancouver Design Center
2 Interfacing to the PR31500/PR31700
The Philips MIPS PR31500/PR31700 processor supports up to two PC Card (PCMCIA)
slots. It is through this host bus interface that the SED1355 connects to the
PR31500/PR31700 processor.
The SED1355 can be successfully interfaced using one of the following configurations:
• Direct connection to the PR31500/PR31700 (see Section 4, “Direct Connection to the
Philips PR31500/PR31700” on page 9).
• System design using the ITE IT8368E PC Card/GPIO buffer chip (see Section 5,
“System Design Using the IT8368E PC Card Buffer” on page 12).
SED1355
X23A-G-001-06
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 7
3 SED1355 Host Bus Interface
The SED1355 implements a 16-bit host bus interface specifically for interfacing to the
PR31500/PR31700 microprocessor.
The PR31500/PR31700 host bus interface is selected by the SED1355 on the rising edge of
RESET#. After releasing reset, the bus interface signals assume their selected
configuration. For details on SED1355 configuration, see Section 4.2, “SED1355 Configuration” on page 10.
Note
At reset, the Host Interface Disable bit in the Miscellaneous Disable Register
(REG[1Bh] bit 7) is set to 1. This means that only REG[1Ah] (read-only) and
REG[1Bh] are accessible until a write to REG[1Bh] sets bit 7 to 0 making all registers accessible. When debugging a new hardware design, this can sometimes give the
appearance that the interface is not working, so it is important to remember to clear this
bit before proceeding with debugging.
3.1 PR31500/PR31700 Host Bus Interface Pin Mapping
The following table shows the function of each host bus interface signal.
Table 3-1: PR31500/PR31700 Host Bus Interface Pin Mapping
SED1355 Pin Name
AB20
AB19
AB18
AB17
AB[16:13]
AB[12:0]
DB[15:8]
DB[7:0]
WE1#
M/R#
CS#
BUSCLK
BS#
RD/WR#
RD#
WE0#
WAIT#
RESET#
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Issue Date: 99/05/05
Philips PR31500/PR31700
ALE
/CARDREG
/CARDIORD
/CARDIOWR
VDD
A[12:0]
D[23:16]
D[31:24]
/CARDxCSH
VDD
VDD
DCLKOUT
VDD
/CARDxCSL
/RD
/WE
/CARDxWAIT
RESET#
SED1355
X23A-G-001-06
Page 8
Epson Research and Development
Vancouver Design Center
3.2 PR31500/PR31700 Host Bus Interface Signals
When the SED1355 is configured to operate with the PR31500/PR31700, the host interface
requires the following signals:
• BUSCLK is a clock input required by the SED1355 host bus interface. It is separate
from the input clock (CLKI) and should be driven by the PR31500/PR31700 bus clock
output DCLKOUT.
• Address input AB20 corresponds to the PR31500/PR31700 signal ALE (address latch
enable) whose falling edge indicates that the most significant bits of the address are
present on the multiplexed address bus (AB[12:0]).
• Address input AB19 should be connected to the PR31500/PR31700 signal /CARDREG.
This signal is active when either IO or configuration space of the PR31500/PR31700
PC Card slot is being accessed.
• Address input AB18 should be connected to the PR31500/PR31700 signal
/CARDIORD. Either AB18 or the RD# input must be asserted for a read operation to
take place.
• Address input AB17 should be connected to the PR31500/PR31700 signal
/CARDIOWR. Either AB17 or the WE0# input must be asserted for a write operation to
take place.
• Address inputs AB[16:13] and control inputs M/R#, CS# and BS# must be tied to VDD
as they are not used in this interface mode.
• Address inputs AB[12:0], and the data bus DB[15:0], connect directly to the
PR31500/PR31700 address and data bus, respectively. MD4 must be set to select the
proper endian mode on reset (see Section 4.2, “SED1355 Configuration” on page 10).
Because of the PR31500/PR31700 data bus naming convention and endian mode,
SED1355 DB[15:8] must be connected to PR31500/PR31700 D[23:16], and
SED1355 DB[7:0] must be connected to PR31500/PR31700 D[31:24].
• Control inputs WE1# and RD/WR# should be connected to the PR31500/PR31700
signals /CARDxCSH and /CARDxCSL respectively for byte steering.
• Input RD# should be connected to the PR31500/PR31700 signal /RD. Either RD# or the
AB18 input (/CARDIORD) must be asserted for a read operation to take place.
• Input WE0# should be connected to the PR31500/PR31700 signal /WR. Either WE0# or
the AB17 input (/CARDIOWR) must be asserted for a write operation to take place.
• WAIT# is a signal output from the SED1355 that indicates the host CPU must wait until
data is ready (read cycle) or accepted (write cycle) on the host bus. Since the host CPU
accesses to the SED1355 may occur asynchronously to the display update, it is possible
that contention may occur in accessing the SED1355 internal registers and/or display
buffer. The WAIT# line resolves these contentions by forcing the host to wait until the
resource arbitration is complete.
SED1355
X23A-G-001-06
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 9
4 Direct Connection to the Philips PR31500/PR31700
The SED1355 was specifically designed to support the Philips MIPS PR31500/PR31700
processor. When configured, the SED1355 will utilize one of the PC Card slots supported
by the processor.
4.1 Hardware Description
In this example implementation, the SED1355 occupies one PC Card slot and resides in
the Attribute and IO address range. The processor provides address bits A[12:0], with
A[23:13] being multiplexed and available on the falling edge of ALE. Peripherals requiring
more than 8K bytes of address space would require an external latch for these multiplexed
bits. However, the SED1355 has an internal latch specifically designed for this processor
making additional logic unnecessary. To further reduce the need for external components,
the SED1355 has an optional BUSCLK divide-by-2 feature, allowing the high speed
DCLKOUT from the processor to be directly connected to the BUSCLK input of the
SED1355. An optional external oscillator may be used for BUSCLK since the SED1355
will accept host bus control signals asynchronously with respect to BUSCLK.
The following diagram shows a typical implementation of the interface.
VDD (+3.3V)
PR31500/PR31700
SED1355
M/R#
CS#
BS#
AB[16:13]
AB[12:0]
DB[15:8]
DB[7:0]
A[12:0]
D[23:16]
D[31:24]
ALE
/CARDREG
AB20
/CARDIORD
AB18
/CARDIOWR
AB17
AB19
/CARDxCSH
/CARDxCSL
/RD
/WE
/CARDxWAIT
VDD
pull-up
System RESET
WE1#
RD/WR#
RD#
WE0#
WAIT#
RESET#
ENDIAN
DCLKOUT
...or...
Oscillator
See text
BUSCLK
CLKI
Note: When connecting the SED1355 RESET# pin, the system designer should be aware of all
conditions that may reset the SED1355 (e.g. CPU reset can be asserted during wake-up
from power-down modes, or during debug states).
Figure 4-1: Typical Implementation of Direct Connection
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Issue Date: 99/05/05
SED1355
X23A-G-001-06
Page 10
Epson Research and Development
Vancouver Design Center
The host interface control signals of the SED1355 are asynchronous with respect to the
SED1355 bus clock. This gives the system designer full flexibility to choose the
appropriate source (or sources) for CLKI and BUSCLK. The choice of whether both clocks
should be the same, whether to use DCLKOUT as clock source, and whether an external or
internal clock divider is needed, should be based on the desired:
• pixel and frame rates.
• power budget.
• part count.
• maximum SED1356 clock frequencies.
The SED1355 also has internal CLKI dividers providing additional flexibility.
4.2 SED1355 Configuration
The SED1355 latches MD15 through MD0 to allow selection of the bus mode and other
configuration data on the rising edge of RESET#. For details on configuration, refer to the
SED1355 Hardware Functional Specification, document number X23A-A-001-xx.
The table below shows those configuration settings relevant to the Philips
PR31500/PR31700 host bus interface.
Table 4-1: SED1355 Configuration for Direct Connection
Value on this pin at rising edge of RESET# is used to configure:
SED1355
Pin Name
1 (VDD)
MD0
MD[3:1]
8-bit host bus interface
0 (VSS)
16-bit host bus interface
111 = Philips PR31500/PR31700 host bus interface if Alternate host bus interface is selected
MD4
Little Endian
Big Endian
MD5
WAIT# is active high (1 = insert wait state)
WAIT# is active low (0 = insert wait state)
MD11
Alternate host bus interface selected
Primary host bus interface selected
MD12
BUSCLK input divided by two: use with DCLKOUT
BUSCLK input not divided: use with external oscillator
= configuration for Philips PR31500/PR31700 host bus interface
SED1355
X23A-G-001-06
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 11
4.3 Memory Mapping and Aliasing
The PR31500/PR31700 uses a portion of the PC Card Attribute and IO space to access the
SED1355. The SED1355 responds to both PC Card Attribute and IO bus accesses, thus
freeing the programmer from having to set the PR31500/PR31700 Memory Configuration
Register 3 bit CARD1IOEN (or CARD2IOEN if slot 2 is used). As a result, the
PR31500/PR31700 sees the SED1355 on its PC Card slot as described in the table below.
Table 4-2: PR31500/PR31700 to PC Card Slots Address Remapping for Direct Connection
SED1355 Uses PC Card Slot #
1
2
Philips Address
Size
Function
0800 0000h
16M byte
Card 1 IO or Attribute
0900 0000h
8M byte
0980 0000h
8M byte
0A00 0000h
32M byte
Card 1 IO or Attribute
6400 0000h
64M byte
Card 1 Memory
0C00 0000h
16M byte
Card 2 IO or Attribute
0D00 0000h
8M byte
0D80 0000h
8M byte
0E00 0000h
32M byte
Card 2 IO or Attribute
6800 0000h
64M byte
Card 2 Memory
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Issue Date: 99/05/05
SED1355 registers,
aliased 4 times at 2M byte intervals
SED1355 display buffer,
aliased 4 times at 2M byte intervals
SED1355 registers,
aliased 4 times at 2M byte intervals
SED1355 display buffer,
aliased 4 times at 2M byte intervals
SED1355
X23A-G-001-06
Page 12
Epson Research and Development
Vancouver Design Center
5 System Design Using the IT8368E PC Card Buffer
In a system design using one or two ITE IT8368E PC Card and multiple-function IO
buffers, the SED1355 can be interfaced so as to share one of the PC Card slots.
5.1 Hardware Description
The IT8368E can be programmed to allocate the same portion of the PC Card Attribute and
IO space to the SED1355 as in the direct connection implementation described in Section
4, “Direct Connection to the Philips PR31500/PR31700” on page 9.
Following is a block diagram showing an implementation using the IT8368E PC Card
buffer.
PR31500/
PR31700
SED1355
IT8368E
PC Card
Device
IT8368E
PC Card
Device
Figure 5-1: IT8368E Implementation Block Diagram
SED1355
X23A-G-001-06
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 13
5.2 IT8368E Configuration
The ITE IT8368E has been specifically designed to support EPSON LCD/CRT controllers.
Older EPSON Controllers not supporting a direct interface to the Philips processor can
utilize the IT8368E MFIO pins to provide the necessary control signals, however when
using the SED1355 this is not necessary as the Direct Connection described in Section 4,
“Direct Connection to the Philips PR31500/PR31700” on page 9 can be used.
The IT8368E must have both “Fix Attribute/IO” and “VGA” modes enabled. When both
these modes are enabled a 16M byte portion of the system PC Card attribute and IO space
is allocated to address the SED1355.
When the IT8368E senses that the SED1355 is being accessed, it does not propagate the PC
Card signals to its PC Card device. This makes SED1355 accesses transparent to any PC
Card device connected to the same slot.
For mapping details, refer to Section 4.3, “Memory Mapping and Aliasing” on page 11. For
further information on configuring the IT8368E, refer to the IT8368E PC Card/GPIO
Buffer Chip Specification.
5.3 SED1355 Configuration
For SED1355 configuration, refer to Section 4.2, “SED1355 Configuration” on page 10.
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Issue Date: 99/05/05
SED1355
X23A-G-001-06
Page 14
Epson Research and Development
Vancouver Design Center
6 Software
Test utilities and Windows® CE v2.0 display drivers are available for the SED1355. Full
source code is available for both the test utilities and the drivers.
The test utilities are configurable for different panel types using a program called
1355CFG, or by directly modifying the source. The Windows CE v2.0 display drivers can
be customized by the OEM for different panel types, resolutions and color depths only by
modifying the source.
The SED1355 test utilities and Windows CE v2.0 display drivers are available from your
sales support contact or on the internet at http://www.eea.epson.com.
SED1355
X23A-G-001-06
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 15
7 References
7.1 Documents
• Philips Electronics, PR31500/PR31700 Preliminary Specifications.
• Epson Research and Development, Inc., SED1355 Hardware Functional Specification,
Document Number X23A-A-001-xx.
• Epson Research and Development, Inc., SDU1355B0C Rev. 1.0 ISA Bus Evaluation
Board User Manual, Document Number X23A-G-004-xx.
• Epson Research and Development, Inc., SED1355 Programming Notes and Examples,
Document Number X23A-G-003-xx.
7.2 Document Sources
• Philips Electronics Website: http://www-us2.semiconductors.philips.com.
• Epson Electronics America Website: http://www.eea.epson.com.
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Issue Date: 99/05/05
SED1355
X23A-G-001-06
Page 16
Epson Research and Development
Vancouver Design Center
8 Technical Support
8.1 EPSON LCD/CRT Controllers (SED1355)
Japan
Seiko Epson Corporation
Electronic Devices Marketing Division
421-8, Hino, Hino-shi
Tokyo 191-8501, Japan
Tel: 042-587-5812
Fax: 042-587-5564
http://www.epson.co.jp
North America
Epson Electronics America, Inc.
150 River Oaks Parkway
San Jose, CA 95134, USA
Tel: (408) 922-0200
Fax: (408) 922-0238
http://www.eea.epson.com
Taiwan, R.O.C.
Epson Taiwan Technology
& Trading Ltd.
10F, No. 287
Nanking East Road
Sec. 3, Taipei, Taiwan, R.O.C.
Tel: 02-2717-7360
Fax: 02-2712-9164
Europe
Epson Europe Electronics GmbH
Riesstrasse 15
80992 Munich, Germany
Tel: 089-14005-0
Fax: 089-14005-110
Hong Kong
Epson Hong Kong Ltd.
20/F., Harbour Centre
25 Harbour Road
Wanchai, Hong Kong
Tel: 2585-4600
Fax: 2827-4346
Singapore
Epson Singapore Pte., Ltd.
No. 1
Temasek Avenue #36-00
Millenia Tower
Singapore, 039192
Tel: 337-7911
Fax: 334-2716
8.2 Philips MIPS PR31500/PR31700 Processor
Philips Semiconductors
Handheld Computing Group
4811 E. Arques Avenue
M/S 42, P.O. Box 3409
Sunnyvale, CA 94088-3409
Tel: (408) 991-2313
http://www.philips.com
8.3 ITE IT8368E
Integrated Technology Express, Inc.
Sales & Marketing Division
2710 Walsh Avenue
Santa Clara, CA 95051, USA
Tel: (408) 980-8168
Fax: (408) 980-9232
http://www.iteusa.com
SED1355
X23A-G-001-06
Interfacing to the Philips MIPS PR31500/PR31700 Processor
Issue Date: 99/05/05
SED1355 Embedded RAMDAC LCD/CRT Controller
Interfacing to the PC Card Bus
Document Number: X23A-G-005-05
Copyright © 1998, 1999 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-005-05
Interfacing to the PC Card Bus
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 3
Table of Contents
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2
Interfacing to the PC Card Bus
2.1 The PC Card System Bus . .
2.1.1 PC Card Overview . .
2.1.2 Memory Access Cycles
3
SED1355 Host Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 PC Card Host Bus Interface Pin Mapping . . . . . . . . . . . . . . . . . . . 11
3.2 PC Card Host Bus Interface Signals . . . . . . . . . . . . . . . . . . . . . . 12
4
PC Card to SED1355 Interface . . .
4.1 Hardware Description . . . . .
4.2 SED1355 Hardware Configuration
4.3 Performance . . . . . . . . .
4.4 Register/Memory Mapping . . .
5
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.1 Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.2 Document Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.1 Epson LCD/CRT Controllers (SED1355) . . . . . . . . . . . . . . . . . . . . 19
7.2 PC Card Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Interfacing to the PC Card Bus
Issue Date: 99/05/05
. .
. .
. . .
. . .
.
.
.
.
.
.
.
.
.
. . .
. .
. . .
. . .
.
.
.
.
.
. . . .
. . . .
. . . . .
. . . . .
. . .
. .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. . .
. . .
. . .
. .
. .
. .
. .
.
.
.
.
.
.
.
.
.
. . . . . .
. . . . .
. . . . . . .
. . . . . . .
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. . .
. . .
.
.
.
.
.
. . . .
. . . .
. . . . .
. . . . .
. . .
. .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 8
.8
. 8
. 8
13
13
15
15
16
SED1355
X23A-G-005-05
Page 4
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-005-05
Interfacing to the PC Card Bus
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 5
List of Tables
Table 3-1: PC Card Host Bus Interface Pin Mapping . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 4-1: Summary of Power-On/Reset Options . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 4-2: Register/Memory Mapping for Typical Implementation . . . . . . . . . . . . . . . . . 16
List of Figures
Figure 2-1: PC Card Read Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 2-2: PC Card Write Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 4-1: Typical Implementation of PC Card to SED1355 Interface . . . . . . . . . . . . . . . . 14
Interfacing to the PC Card Bus
Issue Date: 99/05/05
SED1355
X23A-G-005-05
Page 6
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-005-05
Interfacing to the PC Card Bus
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 7
1 Introduction
This application note describes the hardware and software environment required to provide
an interface between the SED1355 Embedded RAMDAC LCD/CRT Controller and the PC
Card (PCMCIA) bus.
The designs described in this document are presented only as examples of how such
interfaces might be implemented. This application note will be updated as appropriate.
Please check the Epson Electronics America website at http://www.eea.epson.com for the
latest revision of this document before beginning any development.
We appreciate your comments on our documentation. Please contact us via email at
[email protected]
Interfacing to the PC Card Bus
Issue Date: 99/05/05
SED1355
X23A-G-005-05
Page 8
Epson Research and Development
Vancouver Design Center
2 Interfacing to the PC Card Bus
2.1 The PC Card System Bus
PC Card technology has gained wide acceptance in the mobile computing field as well as
in other markets due to its portability and ruggedness. This section is an overview of the
operation of the 16-bit PC Card interface conforming to the PCMCIA 2.0/JEIDA 4.1
Standard (or later).
2.1.1 PC Card Overview
The 16-bit PC Card provides a 26-bit address bus and additional control lines which allow
access to three 64M byte address ranges. These ranges are used for common memory space,
IO space, and attribute memory space. Common memory may be accessed by a host system
for memory read and write operations. Attribute memory is used for defining card specific
information such as configuration registers, card capabilities, and card use. IO space
maintains software and hardware compatibility with hosts such as the Intel x86
architecture, which address peripherals independently from memory space.
Bit notation follows the convention used by most micro-processors, the high bit being the
most significant. Therefore, signals A25 and D15 are the most significant bits for the
address and data busses respectively.
Support is provided for on-chip DMA controllers. To find further information on these
topics, refer to Section 6, “References” on page 18.
PC Card bus signals are asynchronous to the host CPU bus signals. Bus cycles are started
with the assertion of the CE1# and/or the CE2# card enable signals. The cycle ends once
these signals are de-asserted. Bus cycles can be lengthened using the WAIT# signal.
Note
The PCMCIA 2.0/JEIDA 4.1 (and later) PC Card Standard support the two signals
WAIT# and RESET which are not supported in earlier versions of the standard. The
WAIT# signal allows for asynchronous data transfers for memory, attribute, and IO
access cycles. The RESET signal allows resetting of the card configuration by the reset
line of the host CPU.
2.1.2 Memory Access Cycles
A data transfer is initiated when a memory address is placed on the PC Card bus and one,
or both, of the card enable signals (CE1# and CE2#) are driven low. REG# must be inactive.
If only CE1# is driven low, 8-bit data transfers are enabled and A0 specifies whether the
even or odd data byte appears on data bus lines D[7:0]. If both CE1# and CE2# are driven
low, a 16-bit word transfer takes place. If only CE2# is driven low, an odd byte transfer
occurs on data lines D[15:8].
SED1355
X23A-G-005-05
Interfacing to the PC Card Bus
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 9
During a read cycle, OE# (output enable) is driven low. A write cycle is specified by
driving OE# high and driving the write enable signal (WE#) low. The cycle can be
lengthened by driving WAIT# low for the time needed to complete the cycle.
Figure 2-1: illustrates a typical memory access read cycle on the PC Card bus.
A[25:0]
REG#
ADDRESS VALID
CE1#
CE2#
OE#
WAIT#
D[15:0]
Hi-Z
DATA VALID
Transfer Start
Hi-Z
Transfer Complete
Figure 2-1: PC Card Read Cycle
Interfacing to the PC Card Bus
Issue Date: 99/05/05
SED1355
X23A-G-005-05
Page 10
Epson Research and Development
Vancouver Design Center
Figure 2-2: illustrates a typical memory access write cycle on the PC Card bus.
A[25:0]
REG#
ADDRESS VALID
CE1#
CE2#
OE#
WE#
WAIT#
D[15:0]
Hi-Z
Hi-Z
DATA VALID
Transfer Start
Transfer Complete
Figure 2-2: PC Card Write Cycle
SED1355
X23A-G-005-05
Interfacing to the PC Card Bus
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 11
3 SED1355 Host Bus Interface
The SED1355 implements a 16-bit PC Card (PCMCIA) host bus interface which is used to
interface to the PC Card bus.
The PC Card host bus interface is selected by the SED1355 on the rising edge of RESET#.
After releasing reset the bus interface signals assume their selected configuration. For
details on SED1355 configuration, see Section 4.2, “SED1355 Hardware Configuration”
on page 15.
Note
At reset, the Host Interface Disable bit in the Miscellaneous Disable Register
(REG[1Bh] bit 7) is set to 1. This means that only REG[1Ah] (read-only) and
REG[1Bh] are accessible until a write to REG[1Bh] sets bit 7 to 0 making all registers accessible. When debugging a new hardware design, this can sometimes give the
appearance that the interface is not working, so it is important to remember to clear this
bit before proceeding with debugging.
3.1 PC Card Host Bus Interface Pin Mapping
The following table shows the functions of each host bus interface signal.
Table 3-1: PC Card Host Bus Interface Pin Mapping
SED1355 Pin Name
AB[20:0]
DB[15:0]
WE1#
M/R#
CS#
BUSCLK
BS#
RD/WR#
RD#
WE0#
WAIT#
RESET#
PC Card (PCMCIA)
A[20:0]1
D[15:0]
-CE2
External Decode
External Decode
n/a2
VDD
-CE1
-OE
-WE
-WAIT
Inverted RESET
Note
1 The
bus signal A0 is not used by the SED1355 internally.
2
Although a clock is not directly supplied by the PC Card interface, one is required by
the SED1355 PC Card host bus interface. For an example of how this can be accomplished see the discussion on BUSCLK in Section 3.2, “PC Card Host Bus Interface
Signals” on page 12.
Interfacing to the PC Card Bus
Issue Date: 99/05/05
SED1355
X23A-G-005-05
Page 12
Epson Research and Development
Vancouver Design Center
3.2 PC Card Host Bus Interface Signals
The SED1355 PC Card host bus interface is designed to support processors which interface
the SED1355 through the PC Card bus.
The SED1355 PC Card host bus interface requires the following signals from the PC Card
bus.
• BUSCLK is a clock input which is required by the SED1355 host bus interface. It is
separate from the input clock (CLKI) and is typically driven by the host CPU system
clock. Since PC Card signalling is independent of any clock, BUSCLK can come from
any oscillator already implemented. For example, the source for the CLKI input of the
SED1355 may be used.
• The address inputs AB[20:0], and the data bus DB[15:0], connect directly to the PC
Card address (A[20:0]) and data bus (D[15:0]), respectively. MD4 must be set to select
little endian mode upon reset.
• M/R# (memory/register) selects between memory or register access. It may be
connected to an address line, allowing system address A21 to be connected to the M/R#
line.
• Chip Select (CS#) must be driven low whenever the SED1355 is accessed by the PC
Card bus.
• WE1# and RD/WR# connect to -CE2 and -CE1 (the byte enables for the high-order and
low-order bytes). They are driven low when the PC Card bus is accessing the SED1355.
• RD# connects to -OE (the read enable signal from the PC Card bus).
• WE0# connects to -WE (the write enable signal from the PC Card bus).
• WAIT# is a signal output from the SED1355 that indicates the PC Card bus must wait
until data is ready (read cycle) or accepted (write cycle) on the host bus. Since PC Card
bus accesses to the SED1355 may occur asynchronously to the display update, it is
possible that contention may occur in accessing the SED1355 internal registers and/or
display buffer. The WAIT# line resolves these contentions by forcing the host to wait
until the resource arbitration is complete. For PC Card applications, this signal should
be set active low using the MD5 configuration input.
• The Bus Start (BS#) signal is not used for the PC Card host bus interface and should be
tied high (connected to VDD).
• The RESET# (active low) input of the SED1355 may be connected to the PC Card
RESET (active high) using an inverter.
SED1355
X23A-G-005-05
Interfacing to the PC Card Bus
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 13
4 PC Card to SED1355 Interface
4.1 Hardware Description
The SED1355 is designed to directly support a variety of CPUs, providing an interface to
each processor’s unique “local bus”. However, in order to provide support for processors
not having an appropriate local bus, the SED1355 supports a specific PC Card interface.
The SED1355 provides a “glueless” interface to the PC Card bus except for the following.
• The RESET# signal on the SED1355 is active low and must be inverted to support the
active high RESET provided by the PC Card interface.
• Although the SED1355 supports an asynchronous bus interface, a clock source is
required on the BUSCLK input pin.
In this implementation, the address inputs (AB[20:0]) and data bus (DB[15:0]) connect
directly to the CPU address (A[20:0]) and data bus (D[15:0]). M/R# is treated as an address
line so that it can be controlled using system address A21.
The PC Card interface does not provide a bus clock, so one must be supplied for the
SED1355. Since the bus clock frequency is not critical, nor does it have to be synchronous
to the bus signals, it may be the same as CLKI. BS# (bus start) is not used and should be
tied high (connected to VDD).
Interfacing to the PC Card Bus
Issue Date: 99/05/05
SED1355
X23A-G-005-05
Page 14
Epson Research and Development
Vancouver Design Center
The following diagram shows a typical implementation of the PC Card to SED1355
interface.
SED1355
PC Card socket
-OE
-WE
RD#
WE0#
-CE1
-CE2
RD/WR#
WE1#
RESET
VDD
RESET#
BS#
CS#
A21
M/R#
A[20:0]
A[21:0]
D[15:0]
AB[20:0]
DB[15:0]
15K
WAIT#
WAIT#
BUSCLK
Oscillator
CLKI
Note:
When connecting the SED1355 RESET# pin, the system designer should be aware of all
conditions that may reset the SED1355 (e.g. CPU reset can be asserted during wake-up
from power-down modes, or during debug states).
Figure 4-1: Typical Implementation of PC Card to SED1355 Interface
SED1355
X23A-G-005-05
Interfacing to the PC Card Bus
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 15
4.2 SED1355 Hardware Configuration
The SED1355 latches MD15 through MD0 to allow selection of the bus mode and other
configuration data on the rising edge of RESET#. For details on configuration, refer to the
SED1355 Hardware Functional Specification, document number X23A-A-001-xx.
The table below shows only those configuration settings important to the PC Card host bus
interface.
Table 4-1: Summary of Power-On/Reset Options
SED1355
Pin Name
MD0
MD[3:1]
MD4
MD5
value on this pin at rising edge of RESET# is used to configure:(1/0)
1
0
8-bit host bus interface
16-bit host bus interface
111 = PC Card host bus interface selected
Little Endian
Big Endian
WAIT# is active high (1 = insert wait state)
WAIT# is active low (0 = insert wait state)
MD11
MD12
Alternate Host Bus Interface Selected
BUSCLK input divided by two
Primary Host Bus Interface Selected
BUSCLK input not divided by two
= configuration for PC Card host bus interface
4.3 Performance
The SED1355 PC Card Interface specification supports a BCLK up to 50MHz, and
therefore can provide a high performance display solution.
Interfacing to the PC Card Bus
Issue Date: 99/05/05
SED1355
X23A-G-005-05
Page 16
Epson Research and Development
Vancouver Design Center
4.4 Register/Memory Mapping
The SED1355 is a memory mapped device. The internal registers require 47 bytes and are
mapped in the lower PC Card memory address space starting at zero.The display buffer
requires 2M bytes and is mapped in the third and fourth megabytes of the PC Card address
space (ranging from 200000h to 3FFFFFh).
A typical implementation as shown in Figure 4-1: “Typical Implementation of PC Card to
SED1355 Interface,” on page 14 has Chip Select (CS#) connected to ground (always
enabled) and the Memory/Register select pin (M/R#) connected to address bit A21. This
provides the following decoding:
Table 4-2: Register/Memory Mapping for Typical Implementation
CS#
M/R# (A21)
Address Range
Function
0
0
0 - 1F FFFFh
Internal Register
Set decoded
0
1
20 0000h - 3F FFFFh
Display Buffer
decode
The PC Card socket provides 64M byte of address space. Without further resolution on the
decoding logic (M/R# connected to A21), the entire register set is aliased for every 64 byte
boundary within the specified address range above. Since address bits A[25:22] are
ignored, the SED1355 registers and display buffer are aliased 16 times.
Note
If aliasing is not desirable, the upper addresses must be fully decoded.
SED1355
X23A-G-005-05
Interfacing to the PC Card Bus
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 17
5 Software
Test utilities and Windows® CE v2.0 display drivers are available for the SED1355. Full
source code is available for both the test utilities and the drivers.
The test utilities are configurable for different panel types using a program called
1355CFG, or by directly modifying the source. The Windows CE v2.0 display drivers can
be customized by the OEM for different panel types, resolutions and color depths only by
modifying the source.
The SED1355 test utilities and Windows CE v2.0 display drivers are available from your
sales support contact or on the internet at http://www.eea.epson.com.
Interfacing to the PC Card Bus
Issue Date: 99/05/05
SED1355
X23A-G-005-05
Page 18
Epson Research and Development
Vancouver Design Center
6 References
6.1 Documents
• PC Card (PCMCIA) Standard, March 1997
• Epson Research and Development, Inc., SED1355 Hardware Functional Specification,
Document Number X23A-A-001-xx.
• Epson Research and Development, Inc., SED1355 Programming Notes and Examples,
Document Number X23A-G-003-xx.
• Epson Research and Development, Inc., SDU1355B0C Rev. 1.0 ISA Bus Evaluation
Board User Manual, Document Number X23A-G-004-xx.
6.2 Document Sources
• PC Card Website: http://www.pc-card.com.
• Epson Electronics America Website: http://www.eea.epson.com.
SED1355
X23A-G-005-05
Interfacing to the PC Card Bus
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 19
7 Technical Support
7.1 Epson LCD/CRT Controllers (SED1355)
Japan
Seiko Epson Corporation
Electronic Devices Marketing Division
421-8, Hino, Hino-shi
Tokyo 191-8501, Japan
Tel: 042-587-5812
Fax: 042-587-5564
http://www.epson.co.jp
Hong Kong
Epson Hong Kong Ltd.
20/F., Harbour Centre
25 Harbour Road
Wanchai, Hong Kong
Tel: 2585-4600
Fax: 2827-4346
North America
Epson Electronics America, Inc.
150 River Oaks Parkway
San Jose, CA 95134, USA
Tel: (408) 922-0200
Fax: (408) 922-0238
http://www.eea.epson.com
Taiwan, R.O.C.
Epson Taiwan Technology
& Trading Ltd.
10F, No. 287
Nanking East Road
Sec. 3, Taipei, Taiwan, R.O.C.
Tel: 02-2717-7360
Fax: 02-2712-9164
Europe
Epson Europe Electronics GmbH
Riesstrasse 15
80992 Munich, Germany
Tel: 089-14005-0
Fax: 089-14005-110
Singapore
Epson Singapore Pte., Ltd.
No. 1
Temasek Avenue #36-00
Millenia Tower
Singapore, 039192
Tel: 337-7911
Fax: 334-2716
7.2 PC Card Standard
PCMCIA
(Personal Computer Memory Card International Association)
2635 North First Street, Suite 209
San Jose, CA 95134, USA
Tel: (408) 433-2273
Fax: (408) 433-9558
http://www.pc-card.com
Interfacing to the PC Card Bus
Issue Date: 99/05/05
SED1355
X23A-G-005-05
Page 20
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-005-05
Interfacing to the PC Card Bus
Issue Date: 99/05/05
SED1355 Embedded RAMDAC LCD/CRT Controller
Interfacing to the NEC
VR4102/VR4111™ Microprocessors
Document Number: X23A-G-007-05
Copyright © 1998, 1999 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Microsoft and Windows are registered trademarks of Microsoft Corporation.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-007-05
Interfacing to the NEC VR4102/VR4111™ Microprocessors
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 3
Table of Contents
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2
Interfacing to the VR4102/VR4111 . . . . . . . . .
2.1 The NEC VR4102/VR4111 System Bus . . . . .
2.1.1 Overview . . . . . . . . . . . . . . . . . . .
2.1.2 LCD Memory Access Cycles . . . . . . . . .
3
SED1355 Host Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Host Bus Interface Pin Mapping . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Host Bus Interface Signals Descriptions . . . . . . . . . . . . . . . . . . . . 11
4
VR4102/VR4111 to SED1355 Interface . . .
4.1 Hardware Description . . . . . . . . .
4.2 SED1355 Hardware Configuration . . . .
4.3 NEC VR4102/VR4111 Configuration . . .
5
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.1 Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.2 Document Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.1 EPSON LCD/CRT Controllers (SED1355) . . . . . . . . . . . . . . . . . . . 16
7.2 NEC Electronics Inc. (VR4102/VR4111). . . . . . . . . . . . . . . . . . . . 16
Interfacing to the NEC VR4102/VR4111™ Microprocessors
Issue Date: 99/05/05
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. . .
. . .
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
. . . . . .
. . . . .
. . . . . . .
. . . . . . .
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
. . . . . . .
. . . . . .
. . . . . . . .
. . . . . . . .
.
.
.
.
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
. 8
.8
. 8
. 9
12
12
13
13
SED1355
X23A-G-007-05
Page 4
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-007-05
Interfacing to the NEC VR4102/VR4111™ Microprocessors
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 5
List of Tables
Table 3-1: Host Bus Interface Pin Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 4-1: Summary of Power-On/Reset Options . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
List of Figures
Figure 2-1: NEC VR4102/VR4111 Read/Write Cycles . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 4-1: NEC VR4102/VR4111 to SED1355 Configuration Schematic . . . . . . . . . . . . . . 12
Interfacing to the NEC VR4102/VR4111™ Microprocessors
Issue Date: 99/05/05
SED1355
X23A-G-007-05
Page 6
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-007-05
Interfacing to the NEC VR4102/VR4111™ Microprocessors
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 7
1 Introduction
This application note describes the hardware and software environment necessary to
provide an interface between the SED1355 Embedded RAMDAC LCD/CRT Controller
and the NEC VR4102TM (µPD30102) or VR4111TM (µPD30111) Microprocessors.
The designs described in this document are presented only as examples of how such
interfaces might be implemented. This application note will be updated as appropriate.
Please check the Epson Electronics America Website at http://www.eea.epson.com for the
latest revision of this document before beginning any development.
We appreciate your comments on our documentation. Please contact us via email at
[email protected]
Interfacing to the NEC VR4102/VR4111™ Microprocessors
Issue Date: 99/05/05
SED1355
X23A-G-007-05
Page 8
Epson Research and Development
Vancouver Design Center
2 Interfacing to the VR4102/VR4111
2.1 The NEC VR4102/VR4111 System Bus
The VR-Series family of microprocessors features a high-speed synchronous system bus
typical of modern microprocessors. Designed with external LCD controller support and
Windows CE based embedded consumer applications in mind, the VR4102/VR4111 offers
a highly integrated solution for portable systems. This section provides an overview of the
operation of the CPU bus in order to establish interface requirements.
2.1.1 Overview
The NEC VR4102/VR4111 is designed around the RISC architecture developed by MIPS.
This microprocessor is based on the 66MHz VR4100 CPU core which supports 64-bit
processing. The CPU communicates with the Bus Control Unit (BCU) using its internal
SysAD bus. The BCU in turn communicates with external devices using its ADD and DAT
buses which can be dynamically sized for 16 or 32-bit operation.
The NEC VR4102/VR4111 has direct support for an external LCD controller. Specific
control signals are assigned for an external LCD controller providing an easy interface to
the CPU. A 16M byte block of memory is assigned for the LCD controller and its own chip
select and ready signals are available. Word or byte accesses are controlled by the system
high byte signal (SHB#).
SED1355
X23A-G-007-05
Interfacing to the NEC VR4102/VR4111™ Microprocessors
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 9
2.1.2 LCD Memory Access Cycles
Once an address in the LCD block of memory is placed on the external address bus
(ADD[25:0]), the LCD chip select (LCDCS#) is driven low. The read or write enable
signals (RD# or WR#) are driven low for the appropriate cycle and LCDRDY is driven low
to insert wait states into the cycle. The high byte enable (SHB#) in conjunction with address
bit 0 allows for byte steering.
The following figure illustrates typical NEC VR4102/VR4111 memory read and write
cycles to the LCD controller interface.
TCLK
ADD[25:0]
VALID
SHB#
LCDCS#
WR#,RD#
D[15:0]
(write)
D[15:0]
(read)
VALID
Hi-Z
VALID
Hi-Z
LCDRDY
Figure 2-1: NEC VR4102/VR4111 Read/Write Cycles
Interfacing to the NEC VR4102/VR4111™ Microprocessors
Issue Date: 99/05/05
SED1355
X23A-G-007-05
Page 10
Epson Research and Development
Vancouver Design Center
3 SED1355 Host Bus Interface
The SED1355 directly supports multiple processors. The SED1355 implements a 16-bit
MIPS/ISA Host Bus Interface which is most suitable for direct connection to the
VR4102/VR4111 microprocessor.
The MIPS/ISA host bus interface is selected by the SED1355 on the rising edge of
RESET#. After releasing reset the bus interface signals assume their selected configuration.
For details on SED1355 configuration, see Section 4.2, “SED1355 Hardware Configuration” on page 13.
Note
At reset, the Host Interface Disable bit in the Miscellaneous Disable Register
(REG[1Bh] bit 7) is set to 1. This means that only REG[1Ah] (read-only) and
REG[1Bh] are accessible until a write to REG[1Bh] sets bit 7 to 0 making all registers accessible. When debugging a new hardware design, this can sometimes give the
appearance that the interface is not working, so it is important to remember to clear this
bit before proceeding with debugging.
3.1 Host Bus Interface Pin Mapping
The following table shows the functions of each host bus interface signal.
Table 3-1: Host Bus Interface Pin Mapping
SED1355 Pin Name
AB20
AB[19:0]
DB[15:0]
WE1#
M/R#
CS#
BUSCLK
BS#
RD/WR#
RD#
WE0#
WAIT#
RESET#
SED1355
X23A-G-007-05
NEC VR4102/VR4111 Pin Name
ADD20
ADD[19:0]
DAT[15:0]
SHB#
ADD21
LCDCS#
BUSCLK
Connected to VDD
Connected to VDD
RD#
WR#
LCDRDY
connected to system reset
Interfacing to the NEC VR4102/VR4111™ Microprocessors
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 11
3.2 Host Bus Interface Signals Descriptions
The SED1355 MIPS/ISA Host Bus Interface requires the following signals.
• BUSCLK is a clock input which is required by the SED1355 Host Bus Interface. It is
separate from the input clock (CLKI) and is typically driven by the host CPU system
clock.
• The address inputs AB[20:0], and the data bus DB[15:0], connect directly to the
VR4102/VR4111 address (ADD[20:0]) and data bus (DAT[15:0]), respectively. MD4
must be set to select the proper endian mode upon reset.
• M/R# (memory/register) selects between memory or register access. It may be
connected to an address line, allowing system address ADD21 to be connected to the
M/R# line.
• Chip Select (CS#) must be driven low by LCDCS# whenever the SED1355 is accessed
by the VR4102/VR4111.
• WE1# connects to SHB# (the high byte enable signal from the VR4102/VR4111) which
in conjunction with address bit 0 allows byte steering of read and write operations.
• WE0# connects to WR# (the write enable signal from the VR4102/VR4111) and must
be driven low when the VR4102/VR4111 is writing data to the SED1355.
• RD# connects to RD# (the read enable signal from the VR4102/VR4111) and must be
driven low when the VR4102/VR4111 is reading data from the SED1355.
• WAIT# connects to LCDRDY and is a signal output from the SED1355 that indicates
the VR4102/VR4111 must wait until data is ready (read cycle) or accepted (write cycle)
on the host bus. Since VR4102/VR4111 accesses to the SED1355 may occur asynchronously to the display update, it is possible that contention may occur in accessing the
SED1355 internal registers and/or display buffer. The WAIT# line resolves these
contentions by forcing the host to wait until the resource arbitration is complete.
• The BS# and RD/WR# signals are not used for the MIPS/ISA Host Bus Interface and
should be tied high (connected to VDD).
Interfacing to the NEC VR4102/VR4111™ Microprocessors
Issue Date: 99/05/05
SED1355
X23A-G-007-05
Page 12
Epson Research and Development
Vancouver Design Center
4 VR4102/VR4111 to SED1355 Interface
4.1 Hardware Description
The NEC VR4102/VR4111 Microprocessors are specifically designed to support an external
LCD controller. They provide the necessary internal address decoding and control signals.
The diagram below shows a typical implementation utilizing the SED1355.
NEC VR4102/VR4111
SED1355
WR#
WE0#
SHB#
WE1#
RD#
RD#
LCDCS#
CS#
Pull-up
LCDRDY
WAIT#
ADD21
M/R#
System RESET
RESET#
ADD[25:0]
AB[20:0]
DAT[15:0]
DB[15:0]
BUSCLK
BUSCLK
VDD
VDD
BS#
RD/WR#
Note:
When connecting the SED1355 RESET# pin, the system designer should be aware of all
conditions that may reset the SED1355 (e.g. CPU reset can be asserted during wake-up
from power-down modes, or during debug states).
Figure 4-1: NEC VR4102/VR4111 to SED1355 Configuration Schematic
Note
For pin mapping see Table 3-1:, “Host Bus Interface Pin Mapping,” on page 10.
SED1355
X23A-G-007-05
Interfacing to the NEC VR4102/VR4111™ Microprocessors
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 13
4.2 SED1355 Hardware Configuration
The SED1355 latches MD15 through MD0 to allow selection of the bus mode and other
configuration data on the rising edge of RESET#. For details on configuration, refer to the
SED1355 Hardware Functional Specification, document number X23A-A-001-xx.
The table below shows those configuration settings important to the NEC VR4102/VR4111
CPU interface.
Table 4-1: Summary of Power-On/Reset Options
SED1355
Pin Name
MD0
MD[3:1]
MD4
MD5
value on this pin at rising edge of RESET# is used to configure:(1/0)
1
0
8-bit host bus interface
16-bit host bus interface
101 = MIPS/ISA bus interface
Little Endian
Big Endian
WAIT# is active high (1 = insert wait state)
WAIT# is active low (0 = insert wait state)
MD11
Alternate Host Bus Interface Selected
Primary Host Bus Interface Selected
= configuration for NEC VR4102/VR4111 microprocessor
4.3 NEC VR4102/VR4111 Configuration
NEC VR4102/VR4111The NEC VR4102/VR4111 provides the internal address decoding
necessary to map an external LCD controller. Physical address 0A00 0000h to 0AFF
FFFFh (16M bytes) is reserved for an external LCD controller.
The SED1355 supports up to 2M bytes of display buffer. The NEC VR4102/VR4111
address line A21 is used to select between the SED1355 display buffer (A21=1) and
internal registers (A21=0).
The NEC VR4102/VR4111 has a 16-bit internal register named BCUCNTREG2 located at
address 0B00 0002h. It must be set to the value of 0001h to indicate that LCD controller
accesses using a non-inverting data bus.
Interfacing to the NEC VR4102/VR4111™ Microprocessors
Issue Date: 99/05/05
SED1355
X23A-G-007-05
Page 14
Epson Research and Development
Vancouver Design Center
5 Software
Test utilities and Windows® CE v2.0 display drivers are available for the SED1355. Full
source code is available for both the test utilities and the drivers.
The test utilities are configurable for different panel types using a program called
1355CFG, or by directly modifying the source. The Windows CE v2.0 display drivers can
be customized by the OEM for different panel types, resolutions and color depths only by
modifying the source.
The SED1355 test utilities and Windows CE v2.0 display drivers are available from your
sales support contact or on the internet at http://www.eea.epson.com.
SED1355
X23A-G-007-05
Interfacing to the NEC VR4102/VR4111™ Microprocessors
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 15
6 References
6.1 Documents
• NEC Electronics Inc., VR4102 Preliminary Users Manual, Document Number
U12739EJ2V0UM00.
• NEC Electronics Inc., VR4111 Preliminary Users Manual, Document Number
U13137EJ2V0UM00.
• Epson Research and Development, Inc., SED1355 Hardware Functional Specification,
Document Number X23A-A-001-xx.
• Epson Research and Development, Inc., SDU1355B0C Rev. 1.0 ISA Bus Evaluation
Board User Manual, Document Number X23A-G-004-xx.
• Epson Research and Development, Inc., SED1355 Programming Notes and Examples,
Document Number X23A-G-003-xx.
6.2 Document Sources
• NEC Electronics Website: http://www.necel.com.
• Epson Electronics America Website: http://www.eea.epson.com.
Interfacing to the NEC VR4102/VR4111™ Microprocessors
Issue Date: 99/05/05
SED1355
X23A-G-007-05
Page 16
Epson Research and Development
Vancouver Design Center
7 Technical Support
7.1 EPSON LCD/CRT Controllers (SED1355)
Japan
Seiko Epson Corporation
Electronic Devices Marketing Division
421-8, Hino, Hino-shi
Tokyo 191-8501, Japan
Tel: 042-587-5812
Fax: 042-587-5564
http://www.epson.co.jp
Hong Kong
Epson Hong Kong Ltd.
20/F., Harbour Centre
25 Harbour Road
Wanchai, Hong Kong
Tel: 2585-4600
Fax: 2827-4346
North America
Epson Electronics America, Inc.
150 River Oaks Parkway
San Jose, CA 95134, USA
Tel: (408) 922-0200
Fax: (408) 922-0238
http://www.eea.epson.com
Taiwan, R.O.C.
Epson Taiwan Technology
& Trading Ltd.
10F, No. 287
Nanking East Road
Sec. 3, Taipei, Taiwan, R.O.C.
Tel: 02-2717-7360
Fax: 02-2712-9164
Europe
Epson Europe Electronics GmbH
Riesstrasse 15
80992 Munich, Germany
Tel: 089-14005-0
Fax: 089-14005-110
Singapore
Epson Singapore Pte., Ltd.
No. 1
Temasek Avenue #36-00
Millenia Tower
Singapore, 039192
Tel: 337-7911
Fax: 334-2716
7.2 NEC Electronics Inc. (VR4102/VR4111).
NEC Electronics Inc. (U.S.A.)
Corporate Headquarters
2880 Scott Blvd.
Santa Clara, CA 95050-8062, USA
Tel: (800) 366-9782
Fax: (800) 729-9288
http://www.nec.com
SED1355
X23A-G-007-05
Interfacing to the NEC VR4102/VR4111™ Microprocessors
Issue Date: 99/05/05
SED1355 Embedded RAMDAC LCD/CRT Controller
Interfacing to the Motorola MPC821
Microprocessor
Document Number: X23A-G-008-03
Copyright © 1998, 1999 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-008-03
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 3
Table of Contents
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2
Interfacing to the MPC821 . . . . . . . . . . . . . . . .
2.1 The MPC8xx System Bus . . . . . . . . . . . . .
2.2 MPC821 Bus Overview . . . . . . . . . . . . .
2.2.1 Normal (Non-Burst) Bus Transactions . . . . . . .
2.3 Memory Controller Module . . . . . . . . . . . .
2.3.1 General-Purpose Chip Select Module (GPCM) . . .
2.3.2 User-Programmable Machine (UPM) . . . . . . . .
3
SED1355 Host Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1 PowerPC Host Bus Interface Pin Mapping . . . . . . . . . . . . . . . . . . . 13
3.2 PowerPC Host Bus Interface Signals . . . . . . . . . . . . . . . . . . . . . 14
4
MPC821 to SED1355 Interface . . .
4.1 Hardware Description . . . . .
4.2 Hardware Connections . . . . .
4.3 SED1355 Hardware Configuration
4.4 Register/Memory Mapping . . .
4.5 MPC821 Chip Select Configuration
4.6 Test Software . . . . . . . .
5
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.1 Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.2 Document Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.1 EPSON LCD/CRT Controllers (SED1355) . . . . . . . . . . . . . . . . . . . 23
7.2 Motorola MPC821 Processor . . . . . . . . . . . . . . . . . . . . . . . . 23
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. . . . . .
. . . . .
. . . . .
. . . . . . .
. . . . .
. . . . . . .
. . . . . . .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. . .
. .
. . .
. . .
.
.
.
.
.
.
.
. . . .
. . . .
. . . .
. . . . .
. . . .
. . . . .
. . . . .
. . .
. .
. .
. .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 8
.8
.8
. 9
11
11
12
15
15
16
18
18
19
20
SED1355
X23A-G-008-03
Page 4
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-008-03
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 5
List of Tables
Table 3-1: PowerPC Host Bus Interface Pin Mapping . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 4-1: List of Connections from MPC821ADS to SED1355 . . . . . . . . . . . . . . . . . . . 16
Table 4-2: Summary of Power-On/Reset Options . . . . . . . . . . . . . . . . . . . . . . . . . . 18
List of Figures
Figure 2-1: Power PC Memory Read Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 2-2: Power PC Memory Write Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 4-1: Typical Implementation of MPC821 to SED1355 Interface . . . . . . . . . . . . . . . . 15
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-008-03
Page 6
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-008-03
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 7
1 Introduction
This application note describes the hardware and software environment required to provide
an interface between the SED1355 Embedded RAMDAC LCD/CRT Controller and the
Motorola MPC821 processor.
The designs described in this document are presented only as examples of how such
interfaces might be implemented. This application note will be updated as appropriate.
Please check the Epson Electronics America Website at http://www.eea.epson.com for the
latest revision of this document before beginning any development.
We appreciate your comments on our documentation. Please contact us via email at
[email protected]
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-008-03
Page 8
Epson Research and Development
Vancouver Design Center
2 Interfacing to the MPC821
2.1 The MPC8xx System Bus
The MPC8xx family of processors feature a high-speed synchronous system bus typical of
modern RISC microprocessors. This section provides an overview of the operation of the
CPU bus in order to establish interface requirements.
2.2 MPC821 Bus Overview
The MPC8xx microprocessor family uses a synchronous address and data bus. All IO is
synchronous to a square-wave reference clock called MCLK (Master Clock). This clock
runs at the machine cycle speed of the CPU core (typically 25 to 50 MHz). Most outputs
from the processor change state on the rising edge of this clock. Similarly, most inputs to
the processor are sampled on the rising edge.
Note
The external bus can run at one-half the CPU core speed using the clock control register.
This is typically used when the CPU core is operated above 50 MHz.
The MPC821 can generate up to eight independent chip select outputs, each of which may
be controlled by one of two types of timing generators: the General Purpose Chip Select
Module (GPCM) or the User-Programmable Machine (UPM). Examples are given using
the GPCM.
It should be noted that all Power PC microprocessors, including the MPC8xx family, use
bit notation opposite from the convention used by most other microprocessor systems. Bit
numbering for the MPC8xx always starts with zero as the most significant bit, and increments in value to the least-significant bit. For example, the most significant bits of the
address bus and data bus are A0 and D0, while the least significant bits are A31 and D31.
The MPC8xx uses both a 32-bit address and data bus. A parity bit is supported for each of
the four byte lanes on the data bus. Parity checking is done when data is read from external
memory or peripherals, and generated by the MPC8xx bus controller on write cycles. All
IO accesses are memory-mapped meaning there is no separate IO space in the Power PC
architecture.
Support is provided for both on-chip (DMA controllers) and off-chip (other processors and
peripheral controllers) bus masters. For further information on this topic, refer to Section
6, “References” on page 22.
The bus can support both normal and burst cycles. Burst memory cycles are used to fill
on-chip cache memory, and for certain on-chip DMA operations. Normal cycles are used
for all other data transfers.
SED1355
X23A-G-008-03
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 9
2.2.1 Normal (Non-Burst) Bus Transactions
A data transfer is initiated by the bus master by placing the memory address on address
lines A0 through A31 and driving TS (Transfer Start) low for one clock cycle. Several
control signals are also provided with the memory address:
• TSIZ[0:1] (Transfer Size) -- indicates whether the bus cycle is 8, 16, or 32-bit.
• RD/WR -- set high for read cycles and low for write cycles.
• AT[0:3] (Address Type Signals) -- provides more detail on the type of transfer being
attempted.
When the peripheral device being accessed has completed the bus transfer, it asserts TA
(Transfer Acknowledge) for one clock cycle to complete the bus transaction. Once TA has
been asserted, the MPC821 will not start another bus cycle until TA has been de-asserted.
The minimum length of a bus transaction is two bus clocks.
Figure 2-1: “Power PC Memory Read Cycle” on page 9 illustrates a typical memory read
cycle on the Power PC system bus.
SYSCLK
TS
TA
A[0:31]
RD/WR
TSIZ[0:1], AT[0:3]
D[0:31]
Sampled when TA low
Transfer Start
Wait States
Transfer
Next Transfer
Complete
Starts
Figure 2-1: Power PC Memory Read Cycle
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-008-03
Page 10
Epson Research and Development
Vancouver Design Center
Figure 2-2: “Power PC Memory Write Cycle” on page 10 illustrates a typical memory
write cycle on the Power PC system bus.
SYSCLK
TS
TA
A[0:31]
RD/WR
TSIZ[0:1], AT[0:3]
D[0:31]
Transfer Start
Valid
Wait States
Transfer
Complete
Next Transfer
Starts
Figure 2-2: Power PC Memory Write Cycle
If an error occurs, TEA (Transfer Error Acknowledge) is asserted and the bus cycle is
aborted. For example, a peripheral device may assert TEA if a parity error is detected, or
the MPC821 bus controller may assert TEA if no peripheral device responds at the
addressed memory location within a bus time-out period.
For 32-bit transfers, all data lines (D[0:31]) are used and the two low-order address lines
A30 and A31 are ignored. For 16-bit transfers, data lines D[0:15] are used and address line
A30 is ignored. For 8-bit transfers, data lines D[0:7] are used and all address lines (A[0:31])
are used.
Note
This assumes that the Power PC core is operating in big endian mode (typically the case
for embedded systems).
2.1.3
Burst Cycles
Burst memory cycles are used to fill on-chip cache memory and to carry out certain on-chip
DMA operations. They are very similar to normal bus cycles with the following exceptions:
• Always 32-bit.
• Always attempt to transfer four 32-bit words sequentially.
• Always address longword-aligned memory (i.e. A30 and A31 are always 0:0).
• Do not increment address bits A28 and A29 between successive transfers; the addressed
device must increment these address bits internally.
SED1355
X23A-G-008-03
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 11
If a peripheral is not capable of supporting burst cycles, it can assert Burst Inhibit (BI)
simultaneously with TA, and the processor will revert to normal bus cycles for the
remaining data transfers.
Burst cycles are mainly intended to facilitate cache line fills from program or data memory.
They are normally not used for transfers to/from IO peripheral devices such as the
SED1355, therefore the interfaces described in this document do not attempt to support
burst cycles. However, the example interfaces include circuitry to detect the assertion of
BDIP and respond with BI if caching is accidently enabled for the SED1355 address space.
2.3 Memory Controller Module
2.3.1 General-Purpose Chip Select Module (GPCM)
The General-Purpose Chip Select Module (GPCM) is used to control memory and
peripheral devices which do not require special timing or address multiplexing. In addition
to the chip select output, it can generate active-low Output Enable (OE) and Write Enable
(WE) signals compatible with most memory and x86-style peripherals. The MPC821 bus
controller also provides a Read/Write (RD/WR) signal which is compatible with most 68K
peripherals.
The GPCM is controlled by the values programmed into the Base Register (BR) and Option
Register (OR) of the respective chip select. The Option Register sets the base address, the
block size of the chip select, and controls the following timing parameters:
• The ACS bit field allows the chip select assertion to be delayed by 0, ¼, or ½ clock
cycle with respect to the address bus valid.
• The CSNT bit causes chip select and WE to be negated ½ clock cycle earlier than
normal.
• The TRLX (relaxed timing) bit will insert an additional one clock delay between
assertion of the address bus and chip select. This accommodates memory and
peripherals with long setup times.
• The EHTR (Extended hold time) bit will insert an additional 1 clock delay on the first
access to a chip select.
• Up to 15 wait states may be inserted, or the peripheral can terminate the bus cycle itself
by asserting TA (Transfer Acknowledge).
• Any chip select may be programmed to assert BI (Burst Inhibit) automatically when its
memory space is addressed by the processor core.
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-008-03
Page 12
Epson Research and Development
Vancouver Design Center
2.3.2 User-Programmable Machine (UPM)
The UPM is typically used to control memory types, such as Dynamic RAMs, which have
complex control or address multiplexing requirements. The UPM is a general purpose
RAM-based pattern generator which can control address multiplexing, wait state generation, and five general-purpose output lines on the MPC821. Up to 64 pattern locations are
available, each 32 bits wide. Separate patterns may be programmed for normal accesses,
burst accesses, refresh (timer) events, and exception conditions. This flexibility allows
almost any type of memory or peripheral device to be accommodated by the MPC821.
In this application note, the GPCM is used instead of the UPM, since the GPCM has enough
flexibility to accommodate the SED1355 and it is desirable to leave the UPM free to handle
other interfacing duties, such as EDO DRAM.
SED1355
X23A-G-008-03
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 13
3 SED1355 Host Bus Interface
The SED1355 implements a 16-bit native PowerPC host bus interface which is used to
interface to the MPC821 microprocessor.
The PowerPC host bus interface is selected by the SED1355 on the rising edge of RESET#.
After releasing reset the bus interface signals assume their selected configuration. For
details on SED1355 configuration, see Section 4.3, “SED1355 Hardware Configuration”
on page 18.
Note
At reset, the Host Interface Disable bit in the Miscellaneous Disable Register
(REG[1Bh] bit 7) is set to 1. This means that only REG[1Ah] (read-only) and
REG[1Bh] are accessible until a write to REG[1Bh] sets bit 7 to 0 making all registers accessible. When debugging a new hardware design, this can sometimes give the
appearance that the interface is not working, so it is important to remember to clear this
bit before proceeding with debugging.
3.1 PowerPC Host Bus Interface Pin Mapping
The following table shows the functions of each host bus interface signal.
Table 3-1: PowerPC Host Bus Interface Pin Mapping
SED1355
Pin Names
PowerPC
AB[20:0]
A[11:31]
DB[15:0]
D[0:15]
WE1#
BI
M/R#
External Decode
CS#
External Decode
BUSCLK
CLKOUT
BS#
TS
RD/WR#
RD/WR
RD#
TSIZ0
WE0#
TSIZ1
WAIT#
TA
RESET#
RESET#
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-008-03
Page 14
Epson Research and Development
Vancouver Design Center
3.2 PowerPC Host Bus Interface Signals
The interface requires the following signals:
• BUSCLK is a clock input which is required by the SED1355 host bus interface. It is
separate from the input clock (CLKI) and is typically driven by the host CPU system
clock.
• The address inputs AB[20:0], and the data bus DB[15:0], connect directly to the
PowerPC bus address (A[11:31]) and data bus (D[0:15]), respectively. MD4 must be set
to select the proper endian mode upon reset.
• M/R# (memory/register) selects between memory or register access. It may be
connected to an address line, allowing system address A21 to be connected to the M/R#
line.
• Chip Select (CS#) must be driven low whenever the SED1355 is accessed by the
PowerPC bus.
• WE0# and WE1# connect to TSIZ1 and BI (the write enables for the low-order and
high-order bytes). They must be driven low when the PowerPC bus is writing data to the
SED1355. These signals must be generated by external hardware based on the control
outputs from the PowerPC bus.
• RD# and RD/WR# connect to TSIZ0 and RD/WR (the read enables for the low-order
and high-order bytes). They must be driven low when the PowerPC bus is reading data
from the SED1355. These signals must be generated by external hardware based on the
control outputs from the PowerPC bus.
• WAIT# connects to TA and is a signal output from the SED1355 that indicates the
PowerPC bus must wait until data is ready (read cycle) or accepted (write cycle) on the
host bus. Since the PowerPC bus accesses to the SED1355 may occur asynchronously to
the display update, it is possible that contention may occur in accessing the SED1355
internal registers and/or display buffer. The WAIT# line resolves these contentions by
forcing the host to wait until the resource arbitration is complete.
• The Bus Start (BS#) signal connects to TS (the transfer start signal).
SED1355
X23A-G-008-03
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 15
4 MPC821 to SED1355 Interface
4.1 Hardware Description
The SED1355 provides native Power PC bus support making it very simple to interface the
two devices. This application note describes both the environment necessary to connect the
SED1355 to the MPC821 native system bus and the connection between the SDU1355BOB
Evaluation Board and the Motorola MPC821 Application Development System (ADS).
Additionally, by implementing a dedicated display buffer, the SED1355 can reduce system
power consumption, improve image quality, and increase system performance as compared
to the MPC821’s on-chip LCD controller.
The SED1355, through the use of the MPC821 chip selects, can share the system bus with
all other MPC821 peripherals. The following figure demonstrates a typical implementation
of the SED1355 to MPC821 interface.
SED1355
MPC821
M/R#
A10
A[11:31]
AB[20:0]
D[0:15]
DB[15:0]
CS4
CS#
TS
BS#
TA
WAIT#
RD/WR
RD/WR#
TSIZ0
RD#
TSIZ1
WE0#
BI
WE1#
BUSCLK
SYSCLK
System RESET
RESET#
Note: When connecting the SED1355 RESET# pin, the system designer should be aware of all
conditions that may reset the SED1355 (e.g. CPU reset can be asserted during wake-up
from power-down modes, or during debug states).
Figure 4-1: Typical Implementation of MPC821 to SED1355 Interface
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-008-03
Page 16
Epson Research and Development
Vancouver Design Center
Table 4-1:,“List of Connections from MPC821ADS to SED1355” on page 16 shows the
connections between the pins and signals of the MPC821 and the SED1355.
Note
The interface was designed using a Motorola MPC821 Application Development
System (ADS). The ADS board has 5 volt logic connected to the data bus, so the
interface included two 74F245 octal buffers on D[0:15] between the ADS and the
SED1355. In a true 3 volt system, no buffering is necessary.
4.2 Hardware Connections
The following table details the connections between the pins and signals of the MPC821
and the SED1355.
Table 4-1: List of Connections from MPC821ADS to SED1355
MPC821 Signal Name
Vcc
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
D0
D1
D2
D3
D4
D5
D6
D7
SED1355
X23A-G-008-03
MPC821ADS Connector and Pin Name
P6-A1, P6-B1
P6-C23
P6-A22
P6-B22
P6-C21
P6-C20
P6-D20
P6-B24
P6-C24
P6-D23
P6-D22
P6-D19
P6-A19
P6-D28
P6-A28
P6-C27
P6-A26
P6-C26
P6-A25
P6-D26
P6-B25
P6-B19
P6-D17
P12-A9
P12-C9
P12-D9
P12-A8
P12-B8
P12-D8
P12-B7
P12-C7
SED1355 Signal Name
Vcc
M/R#
AB20
AB19
AB18
AB17
AB16
AB15
AB14
AB13
AB12
AB11
AB10
AB9
AB8
AB7
AB6
AB5
AB4
AB3
AB2
AB1
AB0
DB15
DB14
DB13
DB12
DB11
DB10
DB9
DB8
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 17
Table 4-1: List of Connections from MPC821ADS to SED1355 (Continued)
MPC821 Signal Name
D8
D9
D10
D11
D12
D13
D14
D15
SRESET
SYSCLK
CS4
TS
TA
R/W
TSIZ0
TSIZ1
BI
Gnd
MPC821ADS Connector and Pin Name
P12-A15
P12-C15
P12-D15
P12-A14
P12-B14
P12-D14
P12-B13
P12-C13
P9-D15
P9-C2
P6-D13
P6-B7
P6-B6
P6-D8
P6-B18
P6-C18
P6-B9
P12-A1, P12-B1, P12-A2, P12-B2,
P12-A3, P12-B3, P12-A4, P12-B4,
P12-A5, P12-B5, P12-A6, P12-B6,
P12-A7
SED1355 Signal Name
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
RESET#
BUSCLK
CS#
BS#
WAIT#
RD/WR#
RD#
WE0#
WE1#
Vss
Note
Note that the bit numbering of the Power PC bus signals is reversed. e.g. the most
significant address bit is A0, the next is A1, A2, etc.
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-008-03
Page 18
Epson Research and Development
Vancouver Design Center
4.3 SED1355 Hardware Configuration
The SED1355 latches MD15 through MD0 to allow selection of the bus mode and other
configuration data on the rising edge of RESET#. For details on configuration, refer to the
SED1355 Hardware Functional Specification, document number X23A-A-001-xx.
The following table shows those configuration settings important to the MPC821 host bus
interface.
Table 4-2: Summary of Power-On/Reset Options
SED1355
Pin Name
MD0
MD[3:1]
MD4
MD5
value on this pin at rising edge of RESET# is used to configure: (1/0)
1
0
8-bit host bus interface
16-bit host bus interface
110 = PowerPC host bus interface selected
Little Endian
Big Endian
Wait# signal is active high
Wait# signal is active low
MD9
Reserved
Configure SUSPEND# pin as Hardware
Suspend Enable
MD11
Alternate Host Bus Interface Selected
Primary Host Bus Interface Selected
= required settings for MPC821 support.
4.4 Register/Memory Mapping
The DRAM on the MPC821 ADS board extends from address 0 through 3F FFFFh, so the
SED1355 is addressed starting at 40 0000h. A total of 4M bytes of address space is used,
where the lower 2M bytes is reserved for the SED1355 on-chip registers and the upper 2M
bytes is used to access the SED1355 display buffer.
SED1355
X23A-G-008-03
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 19
4.5 MPC821 Chip Select Configuration
Chip select 4 is used to control the SED1355. The following options are selected in the base
address register (BR4):
• BA[0:16] = 0000 0000 0100 0000 0 – set starting address of SED1355 to 40 0000h.
• AT[0:2] = 0 – ignore address type bits.
• PS[0:1] = 1:0 – memory port size is 16-bit.
• PARE = 0 – disable parity checking.
• WP = 0 – disable write protect.
• MS[0:1] = 0:0 – select General Purpose Chip Select module to control this chip select.
• V = 1 – set valid bit to enable chip select.
The following options were selected in the option register (OR4):
• AM[0:16] = 1111 1111 1100 0000 0 – mask all but upper 10 address bits; SED1355
consumes 4M byte of address space.
• ATM[0:2] = 0 – ignore address type bits.
• CSNT = 0 – normal CS/WE negation.
• ACS[0:1] = 1:1 – delay CS assertion by ½ clock cycle from address lines.
• BI = 0 – do not assert Burst Inhibit.
• SCY[0:3] = 0 – wait state selection; this field is ignored since external transfer acknowledge is used; see SETA below.
• SETA = 1 – the SED1355 generates an external transfer acknowledge using the WAIT#
line.
• TRLX = 0 – normal timing.
• EHTR = 0 – normal timing.
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-008-03
Page 20
Epson Research and Development
Vancouver Design Center
4.6 Test Software
The test software is very simple. It configures chip select 4 (CS4) on the MPC821 to map
the SED1355 to an unused 4M byte block of address space. Next, it loads the appropriate
values into the option register for CS4 and writes the value 0 to the SED1355 register
REG[1Bh] to enable the SED1355 host interface. Lastly, the software runs a tight loop that
reads the SED1355 Revision Code Register REG[00h]. This allows monitoring of the bus
timing on a logic analyzer.
The following source code was entered into the memory of the MPC821ADS using the
line-by-line assembler in MPC8BUG (the debugger provided with the ADS board). Once
the program was executed on the ADS, a logic analyzer was used to verify operation of the
interface hardware.
It is important to note that when the MPC821 comes out of reset, the on-chip caches and
MMU are disabled. If the data cache is enabled, then the MMU must be set so that the
SED1355 memory block is tagged as non-cacheable. This ensures the MPC821 does not
attempt to cache any data read from, or written to, the SED1355 or its display buffer.
BR4
OR4
MemStart
DisableReg
RevCodeReg
equ
equ
equ
equ
equ
$120
$124
$40
$1b
0
Start
mfspr
andis.
andis.
oris
ori
stw
andis.
oris
ori
r1,IMMR
r1,r1,$ffff
r2,r0,0
r2,r2,MemStart
r2,r2,$0801
r2,BR4(r1)
r2,r0,0
r2,r2,$ffc0
r2,r2,$0608
Loop
stw
andis.
oris
stb
lbz
b
;
;
;
;
;
;
;
;
;
;
;
;
;
;
;
r2,OR4(r1)
;
r1,r0,0
;
r1,r1,MemStart
;
r1,DisableReg(r1) ;
r0,RevCodeReg(r1) ;
Loop
;
CS4 base register
CS4 option register
upper word of SED1355 start address
address of SED1355 Disable Register
address of Revision Code Register
get base address of internal registers
clear lower 16 bits to 0
clear r2
write base address
port size 16 bits; select GPCM; enable
write value to base register
clear r2
address mask – use upper 10 bits
normal CS negation; delay CS ½ clock;
no burst inhibit (1355 does this)
write to option register
clear r1
point r1 to start of SED1355 mem space
write 0 to disable register
read revision code into r1
branch forever
end
Note
MPC8BUG does not support comments or symbolic equates; these have been added for
clarity.
SED1355
X23A-G-008-03
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 21
5 Software
Test utilities and Windows® CE v2.0 display drivers are available for the SED1355. Full
source code is available for both the test utilities and the drivers.
The test utilities are configurable for different panel types using a program called
1355CFG, or by directly modifying the source. The Windows CE v2.0 display drivers can
be customized by the OEM for different panel types, resolutions and color depths only by
modifying the source.
The SED1355 test utilities and Windows CE v2.0 display drivers are available from your
sales support contact or on the internet at http://www.eea.epson.com.
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-008-03
Page 22
Epson Research and Development
Vancouver Design Center
6 References
6.1 Documents
• Motorola Inc., Power PC MPC821 Portable Systems Microprocessor User’s Manual;
Motorola Publication no. MPC821UM/AD.
• Epson Research and Development, Inc., SED1355 Hardware Functional Specification,
Document Number X23A-A-001-xx.
• Epson Research and Development, Inc., SDU1355B0B Rev. 1.0 ISA Bus Evaluation
Board User Manual, Document Number X19A-G-001-xx.
6.2 Document Sources
• Motorola Literature Distribution Center: (800) 441-2447.
• Epson Electronics America Website: www.eea.epson.com.
SED1355
X23A-G-008-03
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 23
7 Technical Support
7.1 EPSON LCD/CRT Controllers (SED1355)
Japan
Seiko Epson Corporation
Electronic Devices Marketing Division
421-8, Hino, Hino-shi
Tokyo 191-8501, Japan
Tel: 042-587-5812
Fax: 042-587-5564
http://www.epson.co.jp
Hong Kong
Epson Hong Kong Ltd.
20/F., Harbour Centre
25 Harbour Road
Wanchai, Hong Kong
Tel: 2585-4600
Fax: 2827-4346
North America
Epson Electronics America, Inc.
150 River Oaks Parkway
San Jose, CA 95134, USA
Tel: (408) 922-0200
Fax: (408) 922-0238
http://www.eea.epson.com
Taiwan, R.O.C.
Epson Taiwan Technology
& Trading Ltd.
10F, No. 287
Nanking East Road
Sec. 3, Taipei, Taiwan, R.O.C.
Tel: 02-2717-7360
Fax: 02-2712-9164
Europe
Epson Europe Electronics GmbH
Riesstrasse 15
80992 Munich, Germany
Tel: 089-14005-0
Fax: 089-14005-110
Singapore
Epson Singapore Pte., Ltd.
No. 1
Temasek Avenue #36-00
Millenia Tower
Singapore, 039192
Tel: 337-7911
Fax: 334-2716
7.2 Motorola MPC821 Processor
• Motorola Design Line, (800) 521-6274.
• Local Motorola sales office or authorized distributor.
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-008-03
Page 24
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-008-03
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
SED1355 Embedded RAMDAC LCD/CRT Controller
Interfacing to the Toshiba MIPS
TX3912 Processor
Document Number: X23A-G-010-03
Copyright © 1998, 1999 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-010-03
Interfacing to the Toshiba MIPS TX3912 Processor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 3
Table of Contents
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2
Interfacing to the TX3912
3
SED1355 Host Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 TX3912 Host Bus Interface Pin Mapping . . . . . . . . . . . . . . . . . . . . . 9
3.2 TX3912 Host Bus Interface Signals . . . . . . . . . . . . . . . . . . . . . . 10
4
Direct Connection to the Toshiba TX3912
4.1 Hardware Description . . . . . . . .
4.2 SED1355 Configuration . . . . . . .
4.3 Memory Mapping and Aliasing . . . .
.
.
.
.
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
11
11
12
13
5
System Design Using the IT8368E PC Card Buffer
5.1 Hardware Description . . . . . . . . . . . .
5.2 IT8368E Configuration . . . . . . . . . . . .
5.3 SED1355 Configuration . . . . . . . . . . .
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
14
14
15
15
6
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.1 Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.2 Document Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8
Technical Support . . . . . . . . . . . . . .
8.1 EPSON LCD/CRT Controllers (SED1355) .
8.2 Toshiba MIPS TX3912 Processor . . . . .
8.3 ITE IT8368E . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Interfacing to the Toshiba MIPS TX3912 Processor
Issue Date: 99/05/05
. .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
18
18
18
18
SED1355
X23A-G-010-03
Page 4
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-010-03
Interfacing to the Toshiba MIPS TX3912 Processor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 5
List of Tables
Table 3-1: TX3912 Host Bus Interface Pin Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 4-1: SED1355 Configuration for Direct Connection . . . . . . . . . . . . . . . . . . . . . . 12
Table 4-2: TX3912 to PC Card Slots Address Remapping for Direct Connection . . . . . . . . . . 13
List of Figures
Figure 4-1: Typical Implementation of Direct Connection . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 5-1: IT8368E Implementation Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . 14
Interfacing to the Toshiba MIPS TX3912 Processor
Issue Date: 99/05/05
SED1355
X23A-G-010-03
Page 6
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-010-03
Interfacing to the Toshiba MIPS TX3912 Processor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 7
1 Introduction
This application note describes the hardware and software environment necessary to
provide an interface between the SED1355 Embedded RAMDAC LCD/CRT Controller
and the Toshiba MIPS TX3912 Processor.
The designs described in this document are presented only as examples of how such
interfaces might be implemented. This application note will be updated as appropriate.
Please check the Epson Electronics America website at http://www.eea.epson.com for the
latest revision of this document before beginning any development.
We appreciate your comments on our documentation. Please contact us via email at
[email protected]
Interfacing to the Toshiba MIPS TX3912 Processor
Issue Date: 99/05/05
SED1355
X23A-G-010-03
Page 8
Epson Research and Development
Vancouver Design Center
2 Interfacing to the TX3912
The Toshiba MIPS TX3912 processor supports up to two PC Card (PCMCIA) slots. It is
through this host bus interface that the SED1355 connects to the TX3912 processor.
The SED1355 can be successfully interfaced using one of the following configurations:
• Direct connection to the TX3912 (see Section 4, “Direct Connection to the Toshiba
TX3912” on page 11).
• System design using the ITE IT8368E PC Card/GPIO buffer chip (see Section 5,
“System Design Using the IT8368E PC Card Buffer” on page 14).
SED1355
X23A-G-010-03
Interfacing to the Toshiba MIPS TX3912 Processor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 9
3 SED1355 Host Bus Interface
The SED1355 implements a 16-bit host bus interface specifically for interfacing to the
TX3912 microprocessor.
The TX3912 host bus interface is selected by the SED1355 on the rising edge of RESET#.
After releasing reset, the bus interface signals assume their selected configuration. For
details on SED1355 configuration, see Section 4.2, “SED1355 Configuration” on page 12.
Note
At reset, the Host Interface Disable bit in the Miscellaneous Disable Register
(REG[1Bh] bit 7) is set to 1. This means that only REG[1Ah] (read-only) and
REG[1Bh] are accessible until a write to REG[1Bh] sets bit 7 to 0 making all registers accessible. When debugging a new hardware design, this can sometimes give the
appearance that the interface is not working, so it is important to remember to clear this
bit before proceeding with debugging.
3.1 TX3912 Host Bus Interface Pin Mapping
The following table shows the function of each host bus interface signal.
Table 3-1: TX3912 Host Bus Interface Pin Mapping
SED1355
Pin Names
AB20
AB19
AB18
AB17
AB[16:13]
AB[12:0]
DB[15:8]
DB[7:0]
WE1#
M/R#
CS#
BUSCLK
BS#
RD/WR#
RD#
WE0#
WAIT#
RESET#
Interfacing to the Toshiba MIPS TX3912 Processor
Issue Date: 99/05/05
Toshiba TX3912
ALE
CARDREG*
CARDIORD*
CARDIOWR*
VDD
A[12:0]
D[23:16]
D[31:24]
CARDxCSH*
VDD
VDD
DCLKOUT
VDD
CARDxCSL*
RD*
WE*
CARDxWAIT*
PON*
SED1355
X23A-G-010-03
Page 10
Epson Research and Development
Vancouver Design Center
3.2 TX3912 Host Bus Interface Signals
When the SED1355 is configured to operate with the TX3912, the host interface requires
the following signals:
• BUSCLK is a clock input required by the SED1355 host bus interface. It is separate
from the input clock (CLKI) and should be driven by the TX3912 bus clock output
DCLKOUT.
• Address input AB20 corresponds to the TX3912 signal ALE (address latch enable)
whose falling edge indicates that the most significant bits of the address are present on
the multiplexed address bus (AB[12:0]).
• Address input AB19 should be connected to the TX3912 signal CARDREG*. This
signal is active when either IO or configuration space of the TX3912 PC Card slot is
being accessed.
• Address input AB18 should be connected to the TX3912 signal CARDIORD*. Either
AB18 or the RD# input must be asserted for a read operation to take place.
• Address input AB17 should be connected to the TX3912 signal CARDIOWR*. Either
AB17 or the WE0# input must be asserted for a write operation to take place.
• Address inputs AB[16:13] and control inputs M/R#, CS# and BS# must be tied to VDD
as they are not used in this interface mode.
• Address inputs AB[12:0], and the data bus DB[15:0], connect directly to the TX3912
address and data bus, respectively. MD4 must be set to select the proper endian mode on
reset (see Section 4.2, “SED1355 Configuration” on page 12). Because of the TX3912
data bus naming convention and endian mode, SED1355 DB[15:8] must be
connected to TX3912 D[23:16], and SED1355 DB[7:0] must be connected to
TX3912 D[31:24].
• Control inputs WE1# and RD/WR# should be connected to the TX3912 signals
CARDxCSH* and CARDxCSL* respectively for byte steering.
• Input RD# should be connected to the TX3912 signal RD*. Either RD# or the AB18
input (CARDIORD*) must be asserted for a read operation to take place.
• Input WE0# should be connected to the TX3912 signal WR*. Either WE0# or the AB17
input (CARDIOWR*) must be asserted for a write operation to take place.
• WAIT# is a signal output from the SED1355 that indicates the TX3912 must wait until
data is ready (read cycle) or accepted (write cycle) on the host bus. Since the TX3912
accesses to the SED1355 may occur asynchronously to the display update, it is possible
that contention may occur in accessing the SED1355 internal registers and/or display
buffer. The WAIT# line resolves these contentions by forcing the host to wait until the
resource arbitration is complete.
SED1355
X23A-G-010-03
Interfacing to the Toshiba MIPS TX3912 Processor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 11
4 Direct Connection to the Toshiba TX3912
The SED1355 was specifically designed to support the Toshiba MIPS TX3912 processor.
When configured, the SED1355 will utilize one of the PC Card slots supported by the
processor.
4.1 Hardware Description
In this example implementation, the SED1355 occupies one PC Card slot and resides in
the Attribute and IO address range. The processor provides address bits A[12:0], with
A[23:13] being multiplexed and available on the falling edge of ALE. Peripherals requiring
more than 8K bytes of address space would require an external latch for these multiplexed
bits. However, the SED1355 has an internal latch specifically designed for this processor
making additional logic unnecessary. To further reduce the need for external components,
the SED1355 has an optional BUSCLK divide-by-2 feature, allowing the high speed
DCLKOUT from the processor to be directly connected to the BUSCLK input of the
SED1355. An optional external oscillator may be used for BUSCLK since the SED1355
will accept host bus control signals asynchronously with respect to BUSCLK.
The following diagram shows a typical implementation of the interface.
VDD (+3.3V)
TX3912
SED1355
M/R#
CS#
BS#
AB[16:13]
AB[12:0]
DB[15:8]
DB[7:0]
A[12:0]
D[23:16]
D[31:24]
ALE
CARDREG*
AB20
CARDIORD*
AB18
CARDIOWR*
AB17
CARDxCSH*
WE1#
RD/WR#
RD#
WE0#
WAIT#
CARDxCSL*
RD*
WE*
CARDxWAIT*
AB19
VDD
pull-up
System RESET
RESET#
ENDIAN
DCLKOUT
...or...
Oscillator
See text
BUSCLK
CLKI
Note: When connecting the SED1355 RESET# pin, the system designer should be aware of all
conditions that may reset the SED1355 (e.g. CPU reset can be asserted during wake-up
from power-down modes, or during debug states).
Figure 4-1: Typical Implementation of Direct Connection
Interfacing to the Toshiba MIPS TX3912 Processor
Issue Date: 99/05/05
SED1355
X23A-G-010-03
Page 12
Epson Research and Development
Vancouver Design Center
The host interface control signals of the SED1355 are asynchronous with respect to the
SED1355 bus clock. This gives the system designer full flexibility to choose the
appropriate source (or sources) for CLKI and BUSCLK. The choice of whether both clocks
should be the same, whether to use DCLKOUT as clock source, and whether an external or
internal clock divider is needed, should be based on the desired:
• pixel and frame rates.
• power budget.
• part count.
• maximum SED1356 clock frequencies.
The SED1355 also has internal CLKI dividers providing additional flexibility.
4.2 SED1355 Configuration
The SED1355 latches MD15 through MD0 to allow selection of the bus mode and other
configuration data on the rising edge of RESET#. For details on configuration, refer to the
SED1355 Hardware Functional Specification, document number X23A-A-001-xx.
The table below shows those configuration settings relevant to the Toshiba TX3912 host
bus interface.
Table 4-1: SED1355 Configuration for Direct Connection
Value on this pin at rising edge of RESET# is used to configure:
SED1355
Pin Name
1 (VDD)
MD0
MD[3:1]
8-bit host bus interface
0 (VSS)
16-bit host bus interface
111 = Toshiba TX3912 host bus interface if Alternate host bus interface is selected
MD4
Little Endian
Big Endian
MD5
WAIT# is active high (1 = insert wait state)
WAIT# is active low (0 = insert wait state)
MD11
Alternate host bus interface selected
Primary host bus interface selected
MD12
BUSCLK input divided by two: use with DCLKOUT
BUSCLK input not divided: use with external oscillator
= configuration for Toshiba TX3912 host bus interface
SED1355
X23A-G-010-03
Interfacing to the Toshiba MIPS TX3912 Processor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 13
4.3 Memory Mapping and Aliasing
The TX3912 uses a portion of the PC Card Attribute and IO space to access the SED1355.
The SED1355 responds to both PC Card Attribute and IO bus accesses, thus freeing the
programmer from having to set the TX3912 Memory Configuration Register 3 bit
CARD1IOEN (or CARD2IOEN if slot 2 is used). As a result, the TX3912 sees the
SED1355 on its PC Card slot as described in the table below.
Table 4-2: TX3912 to PC Card Slots Address Remapping for Direct Connection
SED1355 Uses PC Card Slot #
1
2
Toshiba Address
Size
Function
0800 0000h
16M byte
Card 1 IO or Attribute
0900 0000h
8M byte
0980 0000h
8M byte
0A00 0000h
32M byte
Card 1 IO or Attribute
6400 0000h
64M byte
Card 1 Memory
0C00 0000h
16M byte
Card 2 IO or Attribute
0D00 0000h
8M byte
0D80 0000h
8M byte
0E00 0000h
32M byte
Card 2 IO or Attribute
6800 0000h
64M byte
Card 2 Memory
Interfacing to the Toshiba MIPS TX3912 Processor
Issue Date: 99/05/05
SED1355 registers,
aliased 4 times at 2M byte intervals
SED1355 display buffer,
aliased 4 times at 2M byte intervals
SED1355 registers,
aliased 4 times at 2M byte intervals
SED1355 display buffer,
aliased 4 times at 2M byte intervals
SED1355
X23A-G-010-03
Page 14
Epson Research and Development
Vancouver Design Center
5 System Design Using the IT8368E PC Card Buffer
In a system design using one or two ITE IT8368E PC Card and multiple-function IO
buffers, the SED1355 can be interfaced so as to share one of the PC Card slots.
5.1 Hardware Description
The IT8368E can be programmed to allocate the same portion of the PC Card Attribute and
IO space to the SED1355 as in the direct connection implementation described in Section
4, “Direct Connection to the Toshiba TX3912” on page 11.
Following is a block diagram showing an implementation using the IT8368E PC Card
buffer.
TX3912
SED1355
IT8368E
PC Card
Device
IT8368E
PC Card
Device
Figure 5-1: IT8368E Implementation Block Diagram
SED1355
X23A-G-010-03
Interfacing to the Toshiba MIPS TX3912 Processor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 15
5.2 IT8368E Configuration
The ITE IT8368E has been specifically designed to support EPSON LCD/CRT controllers.
Older EPSON Controllers not supporting a direct interface to the Toshiba processor can
utilize the IT8368E MFIO pins to provide the necessary control signals, however when
using the SED1355 this is not necessary as the Direct Connection described in Section 4,
“Direct Connection to the Toshiba TX3912” on page 11 can be used.
The IT8368E must have both “Fix Attribute/IO” and “VGA” modes enabled. When both
these modes are enabled a 16M byte portion of the system PC Card attribute and IO space
is allocated to address the SED1355.
When the IT8368E senses that the SED1355 is being accessed, it does not propagate the PC
Card signals to its PC Card device. This makes SED1355 accesses transparent to any PC
Card device connected to the same slot.
For mapping details, refer to Section 4.3, “Memory Mapping and Aliasing” on page 13. For
further information on configuring the IT8368E, refer to the IT8368E PC Card/GPIO
Buffer Chip Specification.
5.3 SED1355 Configuration
For SED1355 configuration, refer to Section 4.2, “SED1355 Configuration” on page 12.
Interfacing to the Toshiba MIPS TX3912 Processor
Issue Date: 99/05/05
SED1355
X23A-G-010-03
Page 16
Epson Research and Development
Vancouver Design Center
6 Software
Test utilities and Windows® CE v2.0 display drivers are available for the SED1355. Full
source code is available for both the test utilities and the drivers.
The test utilities are configurable for different panel types using a program called
1355CFG, or by directly modifying the source. The Windows CE v2.0 display drivers can
be customized by the OEM for different panel types, resolutions and color depths only by
modifying the source.
The SED1355 test utilities and Windows CE v2.0 display drivers are available from your
sales support contact or on the internet at http://www.eea.epson.com.
SED1355
X23A-G-010-03
Interfacing to the Toshiba MIPS TX3912 Processor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 17
7 References
7.1 Documents
• Toshiba America Electrical Components, Inc., TX3905/12 Specification.
• Epson Research and Development, Inc., SED1355 Hardware Functional Specification,
Document Number X23A-A-001-xx.
• Epson Research and Development, Inc., SDU1355B0C Rev. 1.0 ISA Bus Evaluation
Board User Manual, Document Number X23A-G-004-xx.
• Epson Research and Development, Inc., SED1355 Programming Notes and Examples,
Document Number X23A-G-003-xx.
7.2 Document Sources
• Toshiba America Electrical Components Website: http://www.toshiba.com/taec.
• Epson Electronics America Website: http://www.eea.epson.com.
Interfacing to the Toshiba MIPS TX3912 Processor
Issue Date: 99/05/05
SED1355
X23A-G-010-03
Page 18
Epson Research and Development
Vancouver Design Center
8 Technical Support
8.1 EPSON LCD/CRT Controllers (SED1355)
Japan
Seiko Epson Corporation
Electronic Devices Marketing Division
421-8, Hino, Hino-shi
Tokyo 191-8501, Japan
Tel: 042-587-5812
Fax: 042-587-5564
http://www.epson.co.jp
North America
Epson Electronics America, Inc.
150 River Oaks Parkway
San Jose, CA 95134, USA
Tel: (408) 922-0200
Fax: (408) 922-0238
http://www.eea.epson.com
Taiwan, R.O.C.
Epson Taiwan Technology
& Trading Ltd.
10F, No. 287
Nanking East Road
Sec. 3, Taipei, Taiwan, R.O.C.
Tel: 02-2717-7360
Fax: 02-2712-9164
Europe
Epson Europe Electronics GmbH
Riesstrasse 15
80992 Munich, Germany
Tel: 089-14005-0
Fax: 089-14005-110
Hong Kong
Epson Hong Kong Ltd.
20/F., Harbour Centre
25 Harbour Road
Wanchai, Hong Kong
Tel: 2585-4600
Fax: 2827-4346
Singapore
Epson Singapore Pte., Ltd.
No. 1
Temasek Avenue #36-00
Millenia Tower
Singapore, 039192
Tel: 337-7911
Fax: 334-2716
8.2 Toshiba MIPS TX3912 Processor
http://www.toshiba.com/taec/nonflash/indexproducts.html
8.3 ITE IT8368E
Integrated Technology Express, Inc.
Sales & Marketing Division
2710 Walsh Avenue
Santa Clara, CA 95051, USA
Tel: (408) 980-8168
Fax: (408) 980-9232
http://www.iteusa.com
SED1355
X23A-G-010-03
Interfacing to the Toshiba MIPS TX3912 Processor
Issue Date: 99/05/05
SED1355 Embedded RAMDAC LCD/CRT Controller
Interfacing to the NEC VR4121™
Microprocessor
Document Number: X23A-G-011-03
Copyright © 1998, 1999 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Microsoft and Windows are registered trademarks of Microsoft Corporation.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-011-03
Interfacing to the NEC VR4121™ Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 3
Table of Contents
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2
Interfacing to the NEC VR4121 . .
2.1 The NEC VR4121 System Bus . .
2.1.1 Overview . . . . . . . . . .
2.1.2 LCD Memory Access Cycles
3
SED1355 Host Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Host Bus Interface Pin Mapping . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Host Bus Interface Signal Descriptions . . . . . . . . . . . . . . . . . . . . 11
4
VR4121 to SED1355 Interface . .
4.1 Hardware Description . . . .
4.2 SED1355 Configuration . . .
4.3 NEC VR4121 Configuration . .
4.4 Memory Mapping and Aliasing
5
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1 Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.2 Document Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.1 Epson LCD/CRT Controllers (SED1355) . . . . . . . . . . . . . . . . . . . . 17
7.2 NEC Electronics Inc. (VR4121). . . . . . . . . . . . . . . . . . . . . . . . 17
Interfacing to the NEC VR4121™ Microprocessor
Issue Date: 99/05/05
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. . . . . . .
. . . . . .
. . . . . . . .
. . . . . . . .
.
.
.
.
.
. . .
. .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. . .
. . .
. . .
. .
. .
. .
. .
.
.
.
.
.
.
.
.
.
. . . . . .
. . . . .
. . . . . . .
. . . . . . .
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. . . . . . .
. . . . . .
. . . . . . . .
. . . . . . . .
.
.
.
.
.
. . .
. .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 8
.8
. 8
. 9
12
12
13
13
14
SED1355
X23A-G-011-03
Page 4
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-011-03
Interfacing to the NEC VR4121™ Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 5
List of Tables
Table 3-1: Host Bus Interface Pin Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 4-1: Summary of Power-On-Reset Options . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
List of Figures
Figure 2-1: NEC VR4121 Read/Write Cycles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 4-1: NEC VR4121 to SED1355 Configuration Schematic . . . . . . . . . . . . . . . . . . . 12
Interfacing to the NEC VR4121™ Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-011-03
Page 6
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-011-03
Interfacing to the NEC VR4121™ Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 7
1 Introduction
This application note describes the hardware and software environment necessary to
provide an interface between the SED1355 Embedded RAMDAC LCD/CRT Controller
and the NEC VR4121TM (µPD30121) microprocessor.
The designs described in this document are presented only as examples of how such
interfaces might be implemented. This application note will be updated as appropriate.
Please check the Epson Electronics America website at http://www.eea.epson.com for the
latest revision of this document before beginning any development.
We appreciate your comments on our documentation. Please contact us via email at
[email protected]
Interfacing to the NEC VR4121™ Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-011-03
Page 8
Epson Research and Development
Vancouver Design Center
2 Interfacing to the NEC V R 4121
2.1 The NEC VR4121 System Bus
The VR-Series family of microprocessors features a high-speed synchronous system bus
typical of modern microprocessors. Designed with external LCD controller support and
Windows CE based embedded consumer applications in mind, the VR4121 offers a highly
integrated solution for portable systems. This section provides an overview of the operation
of the CPU bus in order to establish interface requirements.
2.1.1 Overview
The NEC VR4121 is designed around the RISC architecture developed by MIPS. This
microprocessor is based on the 166MHz VR4120 CPU core which supports 64-bit
processing. The CPU communicates with the Bus Control Unit (BCU) using its internal
SysAD bus. The BCU in turn communicates with external devices using its ADD and
DATA buses which can be dynamically sized to 16 or 32-bit operation.
The NEC VR4121 has direct support for an external LCD controller. Specific control
signals are assigned for an external LCD controller providing an easy interface to the CPU.
A 16M byte block of memory is assigned for the LCD controller and its own chip select
and ready signals are available. Word or byte accesses are controlled by the system high
byte signal (SHB#).
SED1355
X23A-G-011-03
Interfacing to the NEC VR4121™ Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 9
2.1.2 LCD Memory Access Cycles
Once an address in the LCD block of memory is placed on the external address bus
(ADD[25:0]), the LCD chip select (LCDCS#) is driven low. The read or write enable
signals (RD# or WR#) are driven low for the appropriate cycle and LCDRDY is driven low
to insert wait states into the cycle. The high byte enable (SHB#) in conjunction with address
bit 0 allows for byte steering.
The following figure illustrates typical NEC VR4121 memory read and write cycles to the
LCD controller interface.
TCLK
ADD[25:0]
VALID
SHB#
LCDCS#
WR#,RD#
D[15:0]
(write)
VALID
Hi-Z
D[15:0]
(read)
VALID
Hi-Z
LCDRDY
Figure 2-1: NEC VR4121 Read/Write Cycles
Interfacing to the NEC VR4121™ Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-011-03
Page 10
Epson Research and Development
Vancouver Design Center
3 SED1355 Host Bus Interface
The SED1355 directly supports multiple processors. The SED1355 implements a 16-bit
MIPS/ISA Host Bus Interface which is most suitable for direct connection to the VR4121
microprocessor.
The MIPS/ISA host bus interface is selected by the SED1355 on the rising edge of
RESET#. After releasing reset the bus interface signals assume their selected configuration.
For details on SED1355 configuration, see Section 4.2, “SED1355 Configuration” on page
13.
Note
At reset, the Host Interface Disable bit in the Miscellaneous Disable Register
(REG[1Bh] bit 7) is set to 1. This means that only REG[1Ah] (read-only) and
REG[1Bh] are accessible until a write to REG[1Bh] sets bit 7 to 0 making all registers accessible. When debugging a new hardware design, this can sometimes give the
appearance that the interface is not working, so it is important to remember to clear this
bit before proceeding with debugging.
3.1 Host Bus Interface Pin Mapping
The following table shows the functions of each host bus interface signal.
Table 3-1: Host Bus Interface Pin Mapping
SED1355 Pin Name
AB20
AB[19:0]
DB[15:0]
WE1#
M/R#
CS#
BUSCLK
BS#
RD/WR#
RD#
WE0#
WAIT#
RESET#
SED1355
X23A-G-011-03
NEC VR4121 Pin Name
ADD20
ADD[19:0]
DAT[15:0]
SHB#
ADD21
LCDCS#
BUSCLK
Connected to VDD
Connected to VDD
RD#
WR#
LCDRDY
connected to system reset
Interfacing to the NEC VR4121™ Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 11
3.2 Host Bus Interface Signal Descriptions
The SED1355 MIPS/ISA Host Bus Interface requires the following signals.
• BUSCLK is a clock input which is required by the SED1355 Host Bus Interface. It is
separate from the input clock (CLKI) and is typically driven by the host CPU system
clock.
• The address inputs AB[20:0], and the data bus DB[15:0], connect directly to the
VR4121 address (ADD[20:0]) and data bus (DAT[15:0]), respectively. MD4 must be
set to select the proper endian mode upon reset.
• M/R# (memory/register) selects between memory or register access. It may be
connected to an address line, allowing system address ADD21 to be connected to the
M/R# line.
• Chip Select (CS#) must be driven low by LCDCS# whenever the SED1355 is accessed
by the VR4121.
• WE1# connects to SHB# (the high byte enable signal from the VR4121) which in
conjunction with address bit 0 allows byte steering of read and write operations.
• WE0# connects to WR# (the write enable signal from the VR4121) and must be driven
low when the VR4121 bus is writing data to the SED1355.
• RD# connects to RD# (the read enable signal from the VR4121) and must be driven low
when the VR4121 bus is reading data from the SED1355.
• WAIT# connects to LCDRDY and is a signal output from the SED1355 that indicates
the VR4121 bus must wait until data is ready (read cycle) or accepted (write cycle) on
the host bus. Since VR4121 bus accesses to the SED1355 may occur asynchronously to
the display update, it is possible that contention may occur in accessing the SED1355
internal registers and/or display buffer. The WAIT# line resolves these contentions by
forcing the host to wait until the resource arbitration is complete.
• The BS# and RD/WR# signals are not used for the MIPS/ISA Host Bus Interface and
should be tied high (connected to VDD).
Interfacing to the NEC VR4121™ Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-011-03
Page 12
Epson Research and Development
Vancouver Design Center
4 V R 4121 to SED1355 Interface
4.1 Hardware Description
The NEC VR4121 microprocessor is specifically designed to support an external LCD
controller. It provides all the necessary internal address decoding and control signals
required by the SED1355.
The diagram below shows a typical implementation utilizing the SED1355.
NEC VR4121
SED1355
WR#
WE0#
SHB#
WE1#
RD#
RD#
LCDCS#
CS#
Pull-up
LCDRDY
WAIT#
System RESET
RESET#
M/R#
ADD21
ADD[25:0]
AB[20:0]
DAT[15:0]
DB[15:0]
BUSCLK
BUSCLK
VDD(+3.3V)
BS#
+3.3V
VDD3
VDD2
RD/WR#
+2.5V
VDD
Note:
When connecting the SED1355 RESET# pin, the system designer should be aware of all
conditions that may reset the SED1355 (e.g. CPU reset can be asserted during wake-up
from power-down modes, or during debug states).
Figure 4-1: NEC VR4121 to SED1355 Configuration Schematic
Note
For pin mapping see Table 3-1:, “Host Bus Interface Pin Mapping,” on page 10.
SED1355
X23A-G-011-03
Interfacing to the NEC VR4121™ Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 13
4.2 SED1355 Configuration
The SED1355 latches MD15 through MD0 to allow selection of the bus mode and other
configuration data on the rising edge of RESET#. For details on configuration, refer to the
SED1355 Hardware Functional Specification, document number X23A-A-001-xx.
The table below shows those configuration settings relevant to the MIPS/ISA host bus
interface used by the NEC VR4121 microprocessor.
Table 4-1: Summary of Power-On-Reset Options
value on this pin at rising edge of RESET# is used to configure:(1/0)
SED1355
Pin Name
1
0
MD0
8-bit host bus interface
MD[3:1]
101 = MIPS/ISA host bus interface
MD4
Little Endian
Big Endian
MD5
WAIT# is active high (1 = insert wait state)
WAIT# is active low (0 = insert wait state)
MD11
Alternate Host Bus Interface Selected
Primary Host Bus Interface Selected
16-bit host bus interface
= configuration for NEC VR4121 microprocessor
4.3 NEC VR4121 Configuration
The NEC VR4121 register BCUCNTREG1 bit ISAM/LCD must be set to 0. A 0 indicates
that the reserved address space is for the LCD controller, and not for the high-speed ISA
memory. The register BCUCNTREG2 bit GMODE must be set to 1 to indicate that a
non-inverting data bus is used for LCD controller accesses.
The LCD interface must be set to operate using a 16-bit data bus. This is accomplished by
setting the NEC VR4121 register BCUCNTREG3 bit LCD32/ISA32 to 0.
Note
Setting the register BCUCNTREG3 bit LCD32/ISA32 to 0 affects both the LCD controller and high-speed ISA memory access.
The frequency of BUSCLK output is programmed from the state of pins TxD/CLKSEL2,
RTS#/CLKSEL1 and DTR#/CLKSEL0 during reset, and from the PMU (Power
Management Unit) configuration registers of the NEC VR4121. The SED1355 works at any
of the frequencies provided by the NEC VR4121.
Interfacing to the NEC VR4121™ Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-011-03
Page 14
Epson Research and Development
Vancouver Design Center
4.4 Memory Mapping and Aliasing
The NEC VR4121 provides the internal address decoding required by an external LCD
controller. The physical address range from 0A00 0000h to 0AFF FFFFh (16M bytes) is
reserved for use by an external LCD controller (e.g. SED1355).
The SED1355 supports up to 2M bytes of display buffer. The NEC VR4121 address line
ADD21 (connected to M/R#) is used to select between the SED1355 display buffer
(ADD21=1) and the SED1355 internal registers (ADD21=0). NEC VR4121 address lines
ADD[23:22] are ignored, thus the SED1355 is aliased four times at 4M byte intervals over
the LCD controller address range. Address lines ADD[25:24] are set at 10b and never
change while the LCD controller is being addressed.
SED1355
X23A-G-011-03
Interfacing to the NEC VR4121™ Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 15
5 Software
Test utilities and Windows® CE v2.0 display drivers are available for the SED1355. Full
source code is available for both the test utilities and the drivers.
The test utilities are configurable for different panel types using a program called
1355CFG, or by directly modifying the source. The Windows CE v2.0 display drivers can
be customized by the OEM for different panel types, resolutions and color depths only by
modifying the source.
The SED1355 test utilities and Windows CE v2.0 display drivers are available from your
sales support contact or on the internet at http://www.eea.epson.com.
Interfacing to the NEC VR4121™ Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-011-03
Page 16
Epson Research and Development
Vancouver Design Center
6 References
6.1 Documents
• NEC Electronics Inc., VR4121 Preliminary Users Manual, Document Number
U13569EJ1V0UM00.
• Epson Research and Development, Inc., SED1355 Hardware Functional Specification,
Document Number X23A-A-001-xx.
• Epson Research and Development, Inc., SDU1355B0C Rev. 1.0 ISA Bus Evaluation
Board User Manual, Document Number X23A-G-004-xx.
• Epson Research and Development, Inc., SED1355 Programming Notes and Examples,
Document Number X23A-G-003-xx.
6.2 Document Sources
• NEC Electronics Website: http://www.necel.com.
• Epson Electronics America Website: http://www.eea.epson.com.
SED1355
X23A-G-011-03
Interfacing to the NEC VR4121™ Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 17
7 Technical Support
7.1 Epson LCD/CRT Controllers (SED1355)
Japan
Seiko Epson Corporation
Electronic Devices Marketing Division
421-8, Hino, Hino-shi
Tokyo 191-8501, Japan
Tel: 042-587-5812
Fax: 042-587-5564
http://www.epson.co.jp
Hong Kong
Epson Hong Kong Ltd.
20/F., Harbour Centre
25 Harbour Road
Wanchai, Hong Kong
Tel: 2585-4600
Fax: 2827-4346
North America
Epson Electronics America, Inc.
150 River Oaks Parkway
San Jose, CA 95134, USA
Tel: (408) 922-0200
Fax: (408) 922-0238
http://www.eea.epson.com
Taiwan, R.O.C.
Epson Taiwan Technology
& Trading Ltd.
10F, No. 287
Nanking East Road
Sec. 3, Taipei, Taiwan, R.O.C.
Tel: 02-2717-7360
Fax: 02-2712-9164
Europe
Epson Europe Electronics GmbH
Riesstrasse 15
80992 Munich, Germany
Tel: 089-14005-0
Fax: 089-14005-110
Singapore
Epson Singapore Pte., Ltd.
No. 1
Temasek Avenue #36-00
Millenia Tower
Singapore, 039192
Tel: 337-7911
Fax: 334-2716
7.2 NEC Electronics Inc. (VR4121).
NEC Electronics Inc. (U.S.A.)
Corporate Headquarters
2880 Scott Blvd.
Santa Clara, CA 95050-8062, USA
Tel: (800) 366-9782
Fax: (800) 729-9288
http://www.nec.com
http://www.vrseries.com
Interfacing to the NEC VR4121™ Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-011-03
Page 18
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-011-03
Interfacing to the NEC VR4121™ Microprocessor
Issue Date: 99/05/05
SED1355 Embedded RAMDAC LCD/CRT Controller
Interfacing to the NEC V832™
Microprocessor
Document Number: X23A-G-012-01
Copyright © 1999 Epson Research and Development, Inc. All Rights Reserved.
Information in this document is subject to change without notice. You may download and use this document, but only for your own use in
evaluating Seiko Epson/EPSON products. You may not modify the document. Epson Research and Development, Inc. disclaims any
representation that the contents of this document are accurate or current. The Programs/Technologies described in this document may contain
material protected under U.S. and/or International Patent laws.
EPSON is a registered trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners.
Microsoft and Windows are registered trademarks of Microsoft Corporation.
Page 2
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-012-01
Interfacing to the NEC V832™ Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 3
Table of Contents
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2
Interfacing to the NEC V832 . . . .
2.1 The NEC V832 System Bus . . .
2.1.1 Overview . . . . . . . . . .
2.1.2 Access Cycles . . . . . . . .
3
SED1355 Host Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Host Bus Interface Pin Mapping . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Host Bus Interface Signal Descriptions . . . . . . . . . . . . . . . . . . . . 11
4
V832 to SED1355 Interface . . . . .
4.1 Hardware Description . . . . .
4.2 SED1355 Hardware Configuration
4.3 NEC V832 Configuration . . . .
4.4 Memory Mapping and Aliasing .
5
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.1 Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.2 Document Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.1 Epson LCD/CRT Controllers (SED1355) . . . . . . . . . . . . . . . . . . . . 18
7.2 NEC Electronics Inc. (V832). . . . . . . . . . . . . . . . . . . . . . . . . 18
Interfacing to the NEC V832™ Microprocessor
Issue Date: 99/05/05
.
.
.
.
.
.
.
.
.
. . .
. .
. . .
. . .
.
.
.
.
.
. . . .
. . . .
. . . . .
. . . . .
. . .
. .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. . .
. .
. . .
. . .
. . .
. .
. .
. .
. .
.
.
.
.
.
.
.
.
.
. . . . . .
. . . . .
. . . . . . .
. . . . . . .
.
.
.
.
.
.
.
.
.
.
. . .
. .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. . . . . . .
. . . . . .
. . . . . . . .
. . . . . . . .
.
.
.
.
.
. . .
. .
. .
. .
. .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 8
.8
. 8
. 9
12
12
13
14
15
SED1355
X23A-G-012-01
Page 4
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-012-01
Interfacing to the NEC V832™ Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 5
List of Tables
Table 3-1:
Table 4-1:
Table 4-2:
Table 4-3:
Host Bus Interface Pin Mapping . . . . . . . . . .
Summary of Power-On/Reset Options . . . . . . .
NEC V832 Wait States vs. Bus Clock Frequency .
NEC V832 IO Address Range For Each CSn Line
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
10
13
14
15
List of Figures
Figure 2-1: NEC V832 Read/Write Cycles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 4-1: NEC V832 to SED1355 Configuration Schematic . . . . . . . . . . . . . . . . . . . . . 12
Interfacing to the NEC V832™ Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-012-01
Page 6
Epson Research and Development
Vancouver Design Center
THIS PAGE LEFT BLANK
SED1355
X23A-G-012-01
Interfacing to the NEC V832™ Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 7
1 Introduction
This application note describes the hardware and software environment required to provide
an interface between the SED1355 Embedded RAMDAC LCD/CRT Controller and the
NEC V832TM microprocessor (µPD705102).
The designs described in this document are presented only as examples of how such
interfaces might be implemented. This application note will be updated as appropriate.
Please check the Epson Electronics America Website at http://www.eea.epson.com for the
latest revision of this document before beginning any development.
We appreciate your comments on our documentation. Please contact us via email at
[email protected]
Interfacing to the NEC V832™ Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-012-01
Page 8
Epson Research and Development
Vancouver Design Center
2 Interfacing to the NEC V832
2.1 The NEC V832 System Bus
This section provides an overview of the operation of the CPU bus in order to establish
interface requirements.
2.1.1 Overview
The NEC V832 is designed around the RISC architecture developed by MIPS. This
microprocessor is based on the 32-bit V830 CPU core. The CPU communicates with
external devices via the Bus Control Unit (BCU). The BCU in turn communicates using its
ADD and DATA buses which can be dynamically sized to 16 or 32-bit operation.
The NEC V832 features dedicated chip select pins which allow memory-mapped IO
operations. A 16M byte block of addressing space can be assigned for the LCD controller
and its own chip select and ready signals are available. Word or byte accesses are controlled
by system byte enable signals (LLBEN and LUBEN).
SED1355
X23A-G-012-01
Interfacing to the NEC V832™ Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 9
2.1.2 Access Cycles
Once an address in the appropriate range is placed on the external address bus (A[23:1]),
the corresponding chip select (CSn) is driven low. The read or write enable signals (IORD
or IOWR) are driven low and READY is driven low by the SED1355 to insert wait states
into the cycle. The byte enable signals (LLBEN and LUBEN) allow byte steering.
The following figure illustrates typical NEC V832 memory-mapped IO access cycles.
SDCLKOUT
A[23:1]
VALID
LLBEN,
LUBEN
CSn
IORD,
IOWR
D[15:0]
(write)
VALID
Hi-Z
D[15:0]
(read)
VALID
Hi-Z
READY
Figure 2-1: NEC V832 Read/Write Cycles
Interfacing to the NEC V832™ Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-012-01
Page 10
Epson Research and Development
Vancouver Design Center
3 SED1355 Host Bus Interface
The SED1355 directly supports multiple processors. The SED1355 implements a 16-bit
PC Card (PCMCIA) Host Bus Interface which is most suitable for direct connection to the
V832 microprocessor.
The PC Card host bus interface is selected by the SED1355 on the rising edge of RESET#.
After releasing reset the bus interface signals assume their selected configuration. For
details on SED1355 configuration, see Section 4.2, “SED1355 Hardware Configuration”
on page 13.
Note
At reset, the Host Interface Disable bit in the Miscellaneous Disable Register
(REG[1Bh] bit 7) is set to 1. This means that only REG[1Ah] (read-only) and
REG[1Bh] are accessible until a write to REG[1Bh] sets bit 7 to 0 making all registers accessible. When debugging a new hardware design, this can sometimes give the
appearance that the interface is not working, so it is important to remember to clear this
bit before proceeding with debugging.
3.1 Host Bus Interface Pin Mapping
The following table shows the functions of each host bus interface signal.
Table 3-1: Host Bus Interface Pin Mapping
SED1355 Pin Name
NEC V832 Pin Name
AB[20:1]
A[20:1]
A0
GND1
DB[15:0]
D[15:0]
WE1#
LUBEN
M/R#
A21
CS#
CS3, CS4, CS5 or CS6
BUSCLK
SDCLKOUT
BS#
Connected to VDD (+3.3V)
RD/WR#
LLBEN
RD#
IORD
WE0#
IOWR
WAIT#
READY
RESET#
connected to system reset
Note
1 The
SED1355
X23A-G-012-01
bus signal A0 is not used by the SED1355 internally.
Interfacing to the NEC V832™ Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 11
3.2 Host Bus Interface Signal Descriptions
The SED1355 PC Card Host Bus Interface requires the following signals.
• BUSCLK is a clock input which is required by the SED1355 Host Bus Interface. It is
driven by the V832 signal SDCLKOUT.
• The address inputs AB[20:0], and the data bus DB[15:0], connect directly to the V832
address (A[20:0]) and data bus (D[15:0]), respectively. MD4 must be set to select little
endian mode upon reset.
• M/R# (memory/register) selects between memory or register access. It may be
connected to an address line, allowing system address A21 to be connected to the M/R#
line.
• Chip Select (CS#) must be driven low by CSx (where x is the V832 chip select used)
whenever the SED1355 is accessed by the V832.
• WE1# and RD/WR# connect to LUBEN and LLBEN (the byte enables for the highorder and low-order bytes). They are driven low when the V832 is accessing the
SED1355.
• RD# connects to IORD (the read enable signal from the V832).
• WE0# connects to IOWR (the write enable signal from the V832).
• WAIT# is a signal output from the SED1355 that indicates the V832 must wait until
data is ready (read cycle) or accepted (write cycle) on the host bus. Since V832 accesses
to the SED1355 may occur asynchronously to the display update, it is possible that
contention may occur in accessing the SED1355 internal registers and/or display buffer.
The WAIT# line resolves these contentions by forcing the host to wait until the resource
arbitration is complete. For V832 applications, this signal should be set active low using
the MD5 configuration input.
• The Bus Start (BS#) signal is not used for the PC Card Host Bus Interface and should be
tied high (connected to VDD).
• The RESET# (active low) input of the SED1355 may be connected to the system
RESET.
Interfacing to the NEC V832™ Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-012-01
Page 12
Epson Research and Development
Vancouver Design Center
4 V832 to SED1355 Interface
4.1 Hardware Description
The NEC V832 microprocessor features configurable chip select lines which can easily be
used for an external LCD controller. It provides all the necessary internal address decoding
and control signals required by the SED1355.
The diagram below shows a typical implementation utilizing the SED1355.
SED1355
NEC V832
LLBEN
RD/WR#
LUBEN
WE1#
IORD
IOWR
RD#
WE0#
CS#
CSn
Pull-up
READY
WAIT#
System RESET
RESET#
A21
M/R#
A[25:1]
AB[20:1]
D[15:0]
DB[15:0]
SDCLKOUT
BUSCLK
VDD(+3.3V)
BS#
+3.3V
VDD_O
VDD_I
VDD
+2.5V
AB0
Note: When connecting the SED1355 RESET# pin, the system designer should be aware of all
conditions that may reset the SED1355 (e.g. CPU reset can be asserted during wake-up
from power-down modes, or during debug states).
Figure 4-1: NEC V832 to SED1355 Configuration Schematic
Note
For pin mapping see Table 3-1:, “Host Bus Interface Pin Mapping,” on page 10.
SED1355
X23A-G-012-01
Interfacing to the NEC V832™ Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 13
4.2 SED1355 Hardware Configuration
The SED1355 latches MD15 through MD0 to allow selection of the bus mode and other
configuration data on the rising edge of RESET#. For details on configuration, refer to the
SED1355 Hardware Functional Specification, document number X23A-A-001-xx.
The table below shows those configuration settings relevant to the PC Card host bus
interface used by the NEC V832 microprocessor.
Table 4-1: Summary of Power-On/Reset Options
SED1355
Pin Name
MD0
MD[3:1]
MD4
MD5
MD11
MD12
Value on this pin at rising edge of RESET# is used to configure: (1/0)
1
0
8-bit host bus interface
16-bit host bus interface
111 = PC Card host bus interface
Little Endian
Big Endian
WAIT# is active high (1 = insert wait state)
WAIT# is active low (0 = insert wait state)
Alternate Host Bus Interface Selected
BUSCLK input divided by two
Primary Host Bus Interface Selected
BUSCLK input not divided by two
= configuration for NEC V832 microprocessor
Interfacing to the NEC V832™ Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-012-01
Page 14
Epson Research and Development
Vancouver Design Center
4.3 NEC V832 Configuration
The NEC V832 should access the SED1355 in non-burst mode only. This is ensured by
using any one of the CS3 to CS6 lines to control the SED1355 and setting that line to
respond to IO operations using the NEC V832 BCTC register. For example, if line CS5 is
designated to control the SED1355, then bit 5 (CT5) of the BCTC register should be set to
1 (IO cycle).
The NEC V832 data bus should be programmed to use 16 bits as the maximum width for
SED1355 bus transactions. This does not affect the width of other NEC V832 data bus
transactions. Data bus width is set in the NEC V832 DBC register. For example, if line CS4
is designated to control the SED1355, then bit 4 (BW4) of the DBC register should be set
to 1 (16-bit bus width).
Depending on bus clock frequencies, a different number of wait states may be required.
These need to be programmed into the NEC V832 PWC0 and PWC1 registers in the bit
field corresponding to the CSn line chosen for the SED1355. For example, if CS3 controls
the SED1355 and one wait state is required, then bits 14-12 of the NEC V832 PWC0
register (WS3) must be set to 001b (one wait state). If CS6 controls the SED1355 and no
wait state is needed, then bits 11-8 of the NEC V832 PWC1 register (WS6) must be set to
0000b (zero wait state).
The table below shows the recommended wait states depending on the bus clock frequency.
Table 4-2: NEC V832 Wait States vs. Bus Clock Frequency
Wait States Maximum Frequency (SDCLKOUT)
0
12.5MHz
1
37MHz
2
No limit
Note
The host interface of the SED1355 is slower when disabled. Therefore, while the host
interface is disabled (REG[1Bh] bit 7 = 1), an additional wait state is required to maintain the same respective frequency limits.
No idle state needs to be added. The NEC V832 PIC0 and PIC1 register bit field
corresponding to the CSn line chosen for the SED1355 must be set to zero. For example, if
CS3 controls the SED1355, then bits 14-12 of the NEC V832 PIC0 register (IS3) must be
set to 000b (no idle state).
SED1355
X23A-G-012-01
Interfacing to the NEC V832™ Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 15
4.4 Memory Mapping and Aliasing
The CSn line selected determines the address range to be reserved for the SED1355. The
table below summarizes the SED1355 address mapping.
Table 4-3: NEC V832 IO Address Range For Each CSn Line
CSn Line
CS3
CS4
CS5
CS6
NEC V832 IO Address
SED1355 Function
0300 0000h
to
03FF FFFFh
0300 0000h
Registers
0320 0000h
Display buffer (2M bytes)
0400 0000h
to
04FF FFFFh
0400 0000h
Registers
0420 0000h
Display buffer (2M bytes)
0500 0000h
to
05FF FFFFh
0500 0000h
Registers
0520 0000h
Display buffer (2M bytes)
0600 0000h
to
06FF FFFFh
0600 0000h
Registers
0620 0000h
Display buffer (2M bytes)
Each address range is 16M bytes, therefore, the SED1355 is aliased four times over the
address range.
Interfacing to the NEC V832™ Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-012-01
Page 16
Epson Research and Development
Vancouver Design Center
5 Software
Test utilities and Windows® CE v2.0 display drivers are available for the SED1355. Full
source code is available for both the test utilities and the drivers.
The test utilities are configurable for different panel types using a program called
1355CFG, or by directly modifying the source. The Windows CE v2.0 display drivers can
be customized by the OEM for different panel types, resolutions and color depths only by
modifying the source.
The SED1355 test utilities and Windows CE v2.0 display drivers are available from your
sales support contact or www.eea.epson.com.
SED1355
X23A-G-012-01
Interfacing to the NEC V832™ Microprocessor
Issue Date: 99/05/05
Epson Research and Development
Vancouver Design Center
Page 17
6 References
6.1 Documents
• NEC Electronics Inc., V832 Preliminary Users Manual, Document Number
U13577EJ1V0UM00.
• Epson Research and Development, Inc., SED1355 Hardware Functional Specification,
Document Number X23A-A-001-xx.
• Epson Research and Development, Inc., SDU1355B0C Rev. 1.0 ISA Bus Evaluation
Board User Manual, Document Number X23A-G-004-xx.
• Epson Research and Development, Inc., SED1355 Programming Notes and Examples,
Document Number X23A-G-003-xx.
6.2 Document Sources
• NEC Electronics Website: http://www.necel.com.
• Epson Electronics America Website: http://www.eea.epson.com.
Interfacing to the NEC V832™ Microprocessor
Issue Date: 99/05/05
SED1355
X23A-G-012-01
Page 18
Epson Research and Development
Vancouver Design Center
7 Technical Support
7.1 Epson LCD/CRT Controllers (SED1355)
Japan
Seiko Epson Corporation
Electronic Devices Marketing Division
421-8, Hino, Hino-shi
Tokyo 191-8501, Japan
Tel: 042-587-5812
Fax: 042-587-5564
http://www.epson.co.jp
Hong Kong
Epson Hong Kong Ltd.
20/F., Harbour Centre
25 Harbour Road
Wanchai, Hong Kong
Tel: 2585-4600
Fax: 2827-4346
North America
Epson Electronics America, Inc.
150 River Oaks Parkway
San Jose, CA 95134, USA
Tel: (408) 922-0200
Fax: (408) 922-0238
http://www.eea.epson.com
Taiwan, R.O.C.
Epson Taiwan Technology
& Trading Ltd.
10F, No. 287
Nanking East Road
Sec. 3, Taipei, Taiwan, R.O.C.
Tel: 02-2717-7360
Fax: 02-2712-9164
Europe
Epson Europe Electronics GmbH
Riesstrasse 15
80992 Munich, Germany
Tel: 089-14005-0
Fax: 089-14005-110
Singapore
Epson Singapore Pte., Ltd.
No. 1
Temasek Avenue #36-00
Millenia Tower
Singapore, 039192
Tel: 337-7911
Fax: 334-2716
7.2 NEC Electronics Inc. (V832).
NEC Electronics Inc. (U.S.A.)
Corporate Headquarters
2880 Scott Blvd.
Santa Clara, CA 95050-8062, USA
Tel: (800) 366-9782
Fax: (800) 729-9288
http://www.necel.com
SED1355
X23A-G-012-01
Interfacing to the NEC V832™ Microprocessor
Issue Date: 99/05/05