ATMEL AT76C110

Features
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DSP Functions for CCD/CMOS Image Processing
Video Encoder, Including Line Driver for NTSC/PAL TV Signal
Baseline JPEG Compression/Decompression
SDRAM Interface
Support for All Flash Card Interfaces (Atmel DataFlash®, MMC, SSFDC, Compact
Flash)
Integrated DACs for LCD
USB and USART Interfaces for PC Camera Applications
Small-Segment LCD Driver
32 Pins for General-purpose I/O
5 External Interrupts, Timer Clock Input and Wake-up Pin
DACs for Camera Control Functions and Audio Output
ADCs for Monitoring Camera Analog Inputs, Audio Input and Switch Input, Like
Window Comparator
Serial Interface for Controlling Camera Components
Up to 2M Bytes Program Space
Support for RTOS
All Low-level Software, Application Samples are Provided
Built-in Outputs Include a CVBS Output with a Line Driver, YC16-bit Digital Output,
RGB 565 Digital Output, Digital Composite Output and RGB Analog Output
Compatible with Various Types of Display Devices
SDRAM Support from 16M Bits to 256M Bits
Direct Interface to Epson and UNIPAC LCDs
280-pin FlexBGA Package
3.3-volt Core and I/O Operation
CCD
CDS
A/D
RS232
Port (PC)
USB (PC)
SDRAM
SDRAM I/F
GPIO
CCD
F/F
Serial
Camera
I/F
AT76C110
Summary
Figure 1. Typical DSC Application Using AT76C110
• Digital inputs
• Control
• Push buttons
HighPerformance
Digital Camera
Processor
DAC
with
L.D.
TV
RGB
DAC
LCD
DACs
• Iris Control
• Shutter Motor
• Lens Motor
• Flash Bulb Control
• AGC Gain
• Voice Output
ADCs
• Battery-level Check
• Photo Detection (AE)
• Focus Sensor
• Voice Input
USART
USB
External
Memory I/F
Flash
• Flash
• CF
Flash
Card
I/F
SSLCD
Small-segment LCD
• MMC/SPI
• SSFDC
• DataFlash®
Rev. 1475AS–IMAGE–06/02
Note: This is a summary document. A complete document is
available under NDA. For more information, please contact your
local Atmel sales office.
1
Description
The AT76C110 is a highly integrated solution for digital cameras. It combines a number
of functions that are required in implementing digital cameras:
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Image data acquisition and capturing from either CCD or CMOS imagers
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Image display
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Image processing and image storing
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Overall camera management
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Control of general-purpose I/O functions
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Data communication
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Control of user functions
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On-screen display
It also provides a large number of interfaces that allow camera manufacturers to directly
access a variety of devices that may be present in a digital camera.
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Communication with PCs
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Communication with Flash cards
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Serial communication ports for controlling other devices in the camera
The design is based on an ARM® microprocessor that controls the entire chip. A number
of hardware resources, controlled by ARM, perform digital camera functions such as
image DSP processing, JPEG coding/decoding, DMA access to SDRAM and video
encoding. All these computation-intensive functions are implemented in hardware which
can be programmed according to user specifications, thus allowing ARM to be free for
other user-defined functions.
Capabilities
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Supports up to 16 megapixel CCDs/CMOS (10 - 30 MHz CCDs)
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CCD colors are limited to the Bayer arrangements of the RGB primary colors
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Interfaces to 16 - 256-Mbit SDRAM, one or two pieces
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30 frames/sec video display mode (NTSC)
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15 frames/sec capture mode (VGA resolution)
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Up to 1.5M bytes/sec read/write from/to Flash cards
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2M bytes external Flash ROM for program space
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2M bytes external SRAM for program/working space (optional)
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Full-speed USB interface (mass storage, and image class)
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100 - 150 mA current
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1 - 5 mA in standby mode
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50 µA current in sleep mode
AT76C110
1475AS–IMAGE–06/02
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1475AS–IMAGE–06/02
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