Freescale MC68QH302 Motorolaâ s mc68302 integrated mult i -protocol processor Datasheet

Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc...
M O T O R O L A’ S M C 6 8 3 0 2
I N T E G R AT E D M U LT I - P R O T O C O L P R O C E S S O R
The MC68302 is a versatile one-chip processor that incorporates the main building blocks needed for the
design of a wide variety of networking and communications products. The MC68302 was the first device to
offer the benefits of a closely coupled, industry-standard, MC68000/MC68008 microprocessor core and a
flexible communications architecture. This multi-channel communications device may be configured to
support a number of popular industry-standard interfaces, including those for the Integrated Services Digital
Network (ISDN) basic rate and terminal adapter applications. Through a combination of architectural and
programmable features, concurrent operation of different protocols is easily achieved using the MC68302.
Data concentrators, modems, line cards, bridges, and gateways are examples of other suitable applications for
this versatile device. The MC68302 is an HCMOS device consisting of an MC68000/MC68008
microprocessor core, a system integration block (SIB), and a communications processor (CP).
Product Highlights
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MC68000/MC68008 Microprocessor Core
Efficient architecture involves a separate
RISC processor for handling communications
Three Serial Communications Controllers
(SCCs)
Support for HDLC/SDLC, Bisync, UART,
DDCMP, and Totally Transparent
protocols.
Two Serial Management Controllers
(SMCs) for IDL and GCI Channel.
Available at 16, 20, 25, and 33 MHz
in three different Thin Quad Flat Pack
Packages.
Strong 3rd Party tools support.
MC68302 MICROPROCESSOR
Typical Applications
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ISDN equipment
Data Concentrators
Modems
Line Cards
Network Bridges
Gateways
Technical Specifications
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MC68000/MC68008 Microprocessor Core
(May be disabled to use the IMP as a peripheral)
For More Information On This Product,
Go to: www.freescale.com
Freescale Semiconductor, Inc.
-
Freescale Semiconductor, Inc...
Independent Direct Memory Access (IDMA) Controller
Interrupt controller with two modes of operation
Parallel I/O ports, some with interrupt capability
On-Chip 1152-bytes of dual-port RAM
Three timers, with a software watchdog timer
Four programmable chip-select lines with wait-state logic
Programmable address mapping of dual-port RAM and
IMP registers
- On-Chip clock generator with an output clock signal
- System control
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Bus arbitration logic with low interrupt latency support
System control register
Hardware watchdog for monitoring bus activity
Low power (Standby) modes
Disable CPU logic (M68000)
Freeze control for debugging selected on-chip peripherals
DRAM refresh controller
MC68000/MC68008 CORE
MC68000 BUS
MC68000/MC68008 CORE
On-Chip Peripherals Bus Interface Unit
Interrupt
Controller
CP Including:
Chip-Select
And WaitState Logic
System
Control
Clock
Generator
1 Channel
IDMA
3 Timers
DRAM
Refresh
Controller
Parallel I/O
- Main controller (RISC Processor)
- Three full-duplex Serial Communication/Controllers
with the following protocols:
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1152 Bytes
Dual-Port
Static RAM
Bus
Arbiter
System Integration Block
Peripheral Bus
6 Channels
SDMA
HDLC/SDLC
Bisync
UART
DDCMP
Totally Transparent
V.110
SMC (2)
SCC1
SCC2
SCC3
SCP
Main
Controller
(RISC)
- Six serial DMA channels dedicated to the three SOCs
- Capability to send/receive up to eight buffers/frames
without M68000 core intervention
- Flexible physical interface accessible by SCCs for Interchip Digital Link (IDL), General Circuit Interface (GCI).
- Pulse Code Modulation (PCM), and Non-multiplexed
Serial Interface (NMSI) Operation.
- Serial Communication Port (SCP) for synchronous com- Two Serial Management Controllers (SMCs) for IDL and GCI Channel.
Serial Channels Physical Interface
Communications Processor
I/O Ports And Pin Assignments
munication.
Contact Information
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Motorola offers user’s manuals,
application notes and sample
code for all of its communications
processors. In addition, local support
for these products is also provided.
This information can be found at:
MC68302 Derivatives
MC68LC302
- Static EC000 Core
- On-Chip PLL
- Low Power Modes Down in µA Range
- Two SCC's
- 100-Pin TQFP
http://motorola.com/netcomm/
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For all other inquiries about Motorola
products, please contact the Motorola
Customer Response Center at:
Phone: 800-521-6274
MC68EN302
- Full Ethernet 802.3 Compliant Controller
Independent of SCC’s
- Full DRAM Controller
- Parity Support
- Dynamic Bus Sizing
- Full Superset of 68302
- 144-Pin TQFP
For More Information On This Product,
Go to: www.freescale.com
MC68QH302
- 68000 Core Processor
- System Integration Block
- RISC Communications Processor
- Two SCC’s
- One Dual Channel SCC
- Pin Compatible with 68302
- 144-Pin TQFP
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