ATMEL AT76C111 User Manual

查询AT76C111 供应商

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

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

®

, MMC, SD, SSFDC,

High­Performance
Digital Camera
Processor

AT76C111

Figure 1. Typical DSC Application Using AT76C111

• Digital Inputs

• Control

• Push Buttons

GPIO

Flash

Card

I/F

• MMC/SPI/SD

• SSFDC

• DataFlash

CCD

CDS

A/D

RS232

Por t

(PC)

USB (PC)

CCD

I/F

Serial

Camera

I/F

USART

USB

SDRAM

SDRAM I/F

External

Memory I/F

Flash

• Flash

• SRAM

• CF

DAC

with
L.D.

DACs

ADC

Summary

TV

• Iris Control

• Shutter Motor

• Lens Motor

• Flash Bulb Control

• AGC Gain

• Voice Output

• Battery-level Check

• Photo Detection (AE)

• Focus Sensor

• Voice Input

Rev. 2334AS–IMAGE–08/02

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 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
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.

microprocessor that controls the entire chip. A number

Capabilities • 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–08/0 2

Atmel Headquarters Atmel Operations

Corporate Headquarters

2325 Orchard Parkway
San Jose, CA 95131
TEL [phone]
FAX [phone]

Europe

Atmel Sarl
Route des Arsenaux 41
Case Postale 80
CH-1705 Fribourg
Switzerland
TEL [phone]
FAX [phone]

Asia

Room 1219
Chinachem Golden Plaza
77 Mody Road Tsimshatsui
East Kowloon
Hong Kong
TEL [phone]
FAX [phone]

Japan

9F, Tonetsu Shinkawa Bldg.
1-24-8 Shinkawa
Chuo-ku, Tokyo 104-0033
Japan
TEL [phone]
FAX [phone]

Memory

2325 Orchard Parkway
San Jose, CA 95131
TEL [phone]
FAX [phone]

Microcontrollers

2325 Orchard Parkway
San Jose, CA 95131
TEL [phone]
FAX [phone]

La Chantrerie
BP 70602
44306 Nantes Cedex 3, France
TEL [phone]
FAX [phone]

ASIC/ASSP/Smart Cards

Zone Industrielle
13106 Rousset Cedex, France
TEL [phone]
FAX [phone]

1150 East Cheyenne Mtn. Blvd.
Colorado Springs, CO 80906
TEL [phone]
FAX [phone]

Scottish Enterprise Technology Park
Maxwell Building
East Kilbride G75 0QR, Scotland
TEL [phone]
FAX [phone]

RF/Automotive

Theresienstrasse 2
Postfach 3535
74025 Heilbronn, Germany
TEL [phone]
FAX [phone]

1150 East Cheyenne Mtn. Blvd.
Colorado Springs, CO 80906
TEL [phone]
FAX [phone]

Biometrics/Imaging/Hi-Rel MPU/
High Speed Converters/RF Datacom

Avenue de Rochepleine
BP 123
38521 Saint-Egreve Cedex, France
TEL [phone]
FAX [phone]

e-mail

[e-mail]

Web Site

http://www.atmel.com

© Atmel Corporation 2002.

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 does
not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of Atmel are granted
by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical
components in life support devices or systems.

AT ME L®and DataFlash®are the registered trademarks of Atmel.

®

ARM

is the registered trademark of ARM, Ltd. Other terms and product names may be the

trademarks of others.

Printed on recycled paper.

2334AS–IMAGE–08/02 xM