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Features
* * * * * * * * * * * * * * * * * * * * * * * *
DSP Functions for CCD/CMOS Image Processing Baseline JPEG Compression/Decompression MPEG-1 Encode/Decode at 24 fps QVGA Compatible with Various Types of Display Devices Video Encoder Including Line Driver for NTSC/PAL TV Signal Integrated DACs for LCD Interface Direct Interface to Epson(R) and AU LCDs Digital Outputs Include: Composite, 16-bit YC, RGB 565 SDRAM Interface - Supports from 16M Bits to 256M Bits Unified Memory Architecture (All Program and Data Stored in SDRAM) Support for Most Flash Card Interfaces (Atmel DataFlash(R), MMC, SD, SSFDC, Memory StickTM) USB 1.1 Host/Slave Controller and USART Interfaces for PC Camera and Printing Applications Up to Nine External Interrupts and Wake-up Pin Serial Peripheral Interface for Loading Boot Code and Controlling Camera Components Two DACs for Camera Control Functions and Audio Output Four ADC Channels for Monitoring Camera Analog Inputs, Audio Input, Switch Input, Etc. Audio Data Interface for Connection to External Stereo ADC/DAC Three General-purpose Timers for Waveform Generation (PWM, Etc.) and Event Monitoring Up to 62 Pins for General-purpose I/O Up to 2M Bytes Program Space Support for RTOS All Low-level Software, Application Samples are Provided 208-ball BGA Package 1.8-Volt Core and 3.3V I/O Operation
HighPerformance Digital Camera Processor AT76C113 Summary
Figure 1. Typical DSC Application Using AT76C113
Program Flash SDRAM (Optional)
* Digital Inputs * Control * Push Buttons
Memory I/F CCD
* Serial EEPROM * CDS A/D * Timing Generator
CCD I/F
GPIO, Timers, INT
DAC with L.D. RGB DAC
TV
LCD
* Iris Control * Shutter Motor * Lens Motor * Flash Bulb Control * AGC Gain * Voice Output * Battery-level Check * Photo Detection (AE) * Focus Sensor * Voice Input
SPI
DACs RS232 Port (PC) USART
USB Host and Slave Peripherals
USB
Flash Card I/F * MMC/SD * SSFDC * DataFlash * Memory Stick
ADC
Rev. 2391BS-IMAGE-05/03
Note: This is a summary datasheet. A complete document is available under NDA. For more information, please contact your local Atmel Sales Office.
1
Description
The AT76C113 is a highly integrated solution for digital cameras. It combines a number of functions that are required in implementing 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
AT76C113 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(R) 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, MPEG-1 coding/decoding, DMA access to SDRAM, and video encoding. All these computationally-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. Part Versions The AT76C113 device comes in six versions, each with slightly different features. These are summarized in Table 1. In the rest of this document, the AT76C113-HU part is discussed. Table 1. AT76C113 Part Versions
Part Number AT76C113-S AT76C113-U AT76C113-H AT76C113-HU AT76C113-P AT76C113-PU Maximum Imager Resolution (Pixels) < 2M < 2M > 2M > 2M > 2M > 2M Maximum SDRAM Size (Mbytes) 128 128 512 512 512 512 USB Functionality Slave Only Slave and Host Slave Only Slave and Host Slave Only Slave and Host
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AT76C113
2391BS-IMAGE-05/03
AT76C113
Capabilities
* * * * * * * * * * * Supports up to 16-megapixel CCDs/CMOS (10 - 35 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) 30 frames/sec capture mode (VGA resolution) 24 frames/sec MPEG-1 encode/decode (QVGA resolution) Up to 1.5M bytes/sec read/write from/to Flash cards 2M bytes external Flash ROM for program space Full-speed USB 1.1 Host/Slave Controller (mass storage and image class for slave operation) Maximum 70 mA current in normal operation 1 - 5 mA in standby mode, < 100 A current in sleep mode
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2391BS-IMAGE-05/03
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(c) Atmel Corporation 2003. All rights reserved. Atmel (R) and combinations thereof, DataFlash (R) are the registered trademarks of Atmel Corporation or its subsidiaries. Epson (R) is the registered trademark of Seiko Epson Corporation (SEC). ARM (R) is a registered trademark and ICEbreaker TM is a trademark of Advanced Risc Machines Ltd. Memory Stick TM is a trademark of Sony Electronics Inc. Other terms and product names may be the trademarks of others.
Printed on recycled paper.
2391BS-IMAGE-05/03 xM

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