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Atmel Electronic Components Datasheet

AT76C111 Datasheet

High-Performance Digital Camera Processor

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Features
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, SD, SSFDC,
CompactFlash)
USB and USART Interfaces for PC Camera Applications
32 Pins for General-purpose I/O
Five External Interrupts, Timer Clock Input and Wakeup Pin
DACs for Camera Control Functions and Audio Output
ADC Channels for Monitoring Camera Analog Inputs, Audio Input and Switch Input,
Like Window Comparator
Serial Interface for Controlling Camera Components
Hardware 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
Compatible with Various Types of Display Devices
SDRAM Support from 16M Bits to 256M Bits
Direct Interface to Epson LCDs
280-pin FlexBGA Package
1.8-volt Core and 3.3V I/O Operation
Figure 1. Typical DSC Application Using AT76C111
SDRAM
• Digital Inputs
• Control
• Push Buttons
CCD
CCD
I/F
SDRAM I/F
CDS
A/D
Serial
Camera
I/F
RS232
Port
(PC)
USART
USB (PC)
USB
External
Memory I/F
GPIO
DAC
with
L.D.
DACs
TV
• Iris Control
• Shutter Motor
• Lens Motor
• Flash Bulb Control
• AGC Gain
• Voice Output
ADC
Flash
Card
I/F
• Battery-level Check
• Photo Detection (AE)
• Focus Sensor
• Voice Input
Flash • Flash
• SRAM
• CF
• MMC/SPI/SD
• SSFDC
• DataFlash
High-
Performance
Digital Camera
Processor
AT76C111
Summary
Rev. 2334AS–IMAGE–08/02
Note: This is a summary document. A complete document is
available under NDA. For more information, please contact your 1
local Atmel sales office.


Atmel Electronic Components Datasheet

AT76C111 Datasheet

High-Performance Digital Camera Processor

No Preview Available !

Description
Capabilities
The AT76C111 is a highly-integrated solution for digital cameras. It combines a number
of functions that are required in digital cameras.
• Image data acquisition and capturing from either CCD or CMOS imagers
• Image display
• Image processing and image storing
• Overall camera management
• Control of general-purpose I/O functions
• Data communication
• Control of user functions
• 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.
• Communication with PCs
• Communication with Flash cards
• 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 computational-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.
• Supports up to 16 megapixel CCDs/CMOS (10 - 30 MHz CCDs)
• CCD colors are limited to the Bayer arrangements of the RGB primary colors
• Interfaces to 16 - 256-Mbit SDRAM, one or two pieces
• 30 frames/sec Video Display mode (NTSC)
• 15 frames/sec Capture mode (VGA resolution)
• Up to 1.5M bytes/sec read/write from/to Flash cards
• 2M Bytes external Flash ROM for program space
• 2M Bytes external SRAM for program/working space (optional)
• Full-speed USB interface (mass storage and image class)
• 60 - 100 mA current
• 1 - 5 mA in Standby mode
• 50 µA current in Sleep mode
2 AT76C111
2334AS–IMAGE–08/02


Part Number AT76C111
Description High-Performance Digital Camera Processor
Maker ATMEL Corporation
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AT76C111 Datasheet PDF






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