Features
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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
®
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
®
, MMC, SD, SSFDC, Memory
Stick
™
)
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
High-
Performance
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.
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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.
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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, 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 specifica-
tions, 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
2
AT76C113
2391BS–IMAGE–05/03
AT76C113
Capabilities
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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
µA
current in sleep mode
3
2391BS–IMAGE–05/03
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Disclaimer:
Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard
warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any
errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and
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as critical components in life support devices or systems.
© Atmel Corporation 2003. All rights reserved.
Atmel
®
and combinations thereof, DataFlash
®
are the
registered trademarks of Atmel Corporation or its subsidiaries. Epson
®
is the registered trademark of Seiko
Epson Corporation (SEC). ARM
®
is a registered trademark and ICEbreaker
™
is a trademark of Advanced Risc
Machines Ltd. Memory Stick
™
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
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