LM9704 Real Time Digital Image Processor
October 2002
LM9704 Real Time Digital Image Processor
General Description
The LM9704 contains all functions needed to build an SXGA or VGA digital still and video camera. It incorporates a 16 bit RISC microprocessor, a flexible image processing pipeline, hardware JPEG compression, and the required peripheral modules in a single IC. This architecture allows a very fast click-to-click time and full resolution video without sacrificing image quality or cost; because the computation extensive operations are processed by circuitry dedicated to image processing. The highly optimized memory management provided by the LM9704 keeps the memory cost of the complete camera to a minimum. A chip set comprising of the LM9704 and a National SXGA or VGA CMOS image sensor complemented by a lens, battery, compact flash, power management for the battery, and LCD (optional) yields a complete high performance cost effective digital still and/or video camera.
Applications
! ! ! ! ! ! PC Cameras Dual Mode Cameras Digital Still Cameras Clip-on Cameras for PDA’s, Cell Phones, etc. Embedded Cameras for PDA’s, Cell Phones, etc. Industrial Cameras
Key Specifications
Array Formats Input Color Format Digital Image Processor Compression - Format - Ratio Video In Frame Rate Video Outputs - USART - USB External CR16C Memory - Memory Type - Address Space - Speed Serial Interfaces - ACCESS.bus - µ wire/SPI 16 bit RISC Processor - MIPS - Internal Memory Clock Speed Power Supply - Core - IO CIF, VGA, SXGA Bayer Pattern 10 bit (12 bit internal) Base Line JPEG Programmable up to 15MHz pixel clock up to 921.6K-bits per second 960K-byte/s SRAM, Flash, Compact Flash, EEPROM up to 16 Mbyte up to 36MHz up to 400KHz up to 6.0 MHz up to 36 32K-bytes up to 60 Mhz from 12MHz Crystal 2.25 to 2.75 Volt 2.7 to 3.6 Volt
Features
! ! ! ! ! ! ! ! ! Embedded 16 bit RISC processor system Up to 16M-bytes of external memory addressing space 32K-bytes Internal RAM 6 channel DMA 8 channel versatile timer Interrupt controller 16 input wake up module Full duplex USART µwire/SPI serial port 16 general purpose IOs (GPIO) Glueless CMOS image sensor interface ACCESS.bus serial interface for imager sensor control Integrated USB v1.1 for connection to PC Raw Image Data Processor Defective pixel correction Digital gain and brightness adjustment Raw data statistics measurement engine Color Image processing Bayer to RGB Interpolation Fully programmable color correction Image sharpening Programmable gamma correction Thumbnail generation RGB to YCrCb conversion Digital gain Hardware JPEG Compression for both video and snapshot. System management Internal Clock generation from 12MHz Crystal Power management Reset generation JTAG based serial on-chip debug interface
Average Power Dissipation 95mW Package Operating temperature 128 Pin Laminated CSP -10oC to +85oC
System Block Diagram
Flash or RAM
LM9704
USART
USB CMOS Sensor Module
2002 National Semiconductor Corporation
www.national.com
Overall Chip Block Diagram
Image PreProcessor Offset Color Gain Sensor I/F Bad Pixel Correction Frame Skipping Digital Color Processor
RGB to YCrCb Conversion
Edge Enhancement
sen
Config & Raw Statistics Measurement Engine
Config
Gain
S ystem Mgmt Config sys Clk Gen Pwr Mgt POR
Compression Config JPEG Encoder Bus Interface Unit
acb
ACCESS.bus APB Bridge
mwire
µwire/SPI Master USART AMBA Peripheral Bus CR16C
6 Channel DMA
usart
gpio
GPIO 16 Pin Versatile Timer Interrupt Controller
timer
32K-Bytes RAM
Bus Interface Unit mem Part Number LM9704SL www.national.com
Color Interpolation
Color Correction
Gamma Correction
Bus Interface Unit
Core Bus Controller
usb
16 Input Wake Up jtag SDI+ Debug I/F
Core Bus
USB V1.1
CR16C-Microprocessor System Chip Block Diagram Figure 1.
Ordering Information
Item LM9704 Description LM9704 Real Time Digital Image Processor
2
Scaling
Related Products
Item
Description LM9704 digital image processor camera development kit. This kit includes the above mentioned camera base board, a power supply board, status LCD board, power adapter, windows application software SNAPS DEV.
Part Number
Development Kit
LM9704DEV-KIT
Camera Board Software Devlopment Kit
LM9704/02 digital image processor camera base board.
LM9704CAMBOARD LM9702CAMBOARD
This kit includes CR16C software development tools, National’s Camera Operating System (NCOS) & an iTAG emulator.
CR16-IM04-00
CompactFlash Adaptor
This is a small 16 bit CompactFlash adaptor board that can be attached to the LM9704CamBoard/LM9702CamBoard allowing CompactFlash cards to be connected to the main system memory bus This is a small SD/MMC adaptor board that can be attached to the LM9704CamBoard/LM9702CamBoard allowing SD and MMC cards to be connected to the LM9702/LM9704 digital image processor VGA color sensor LM9627 VGA monochrome sensor LM9617 VGA color sensor LM9628 VGA monochrome sensor LM9618 128x100 monochrome sensor LM9630 VGA monochrome sensor LM9637 VGA color sensor LM9647 SXGA monochrome sensor LM9638 SXGA color sensor LM9648 1/3” lens kit for the LM9627, LM9617, LM9628 or LM9618 1/5” lens kit for the LM9630 1/4” lens kit for the LM9647, LM9637 1/2” lens kit for the LM9648, LM9638
LM97COMPACFLASH
SD/MMC Adaptor
LM97SDCARD
Head Boards
LM9627HEADBOARD LM9617HEADBOARD LM9628HEADBOARD LM9618HEADBOARD LM9630HEADBOARD LM9637HEADBOARD LM9647HEADBOARD LM9638HEADBOARD LM9648HEADBOARD LM96-1/3LENSKIT LM96-1/5LENSKIT LM96-1/4LENSKIT LM96-1/2LENSKIT
Lens Kits
3
www.national.com
LM9704 Real Time Digital Image Processor
Packaging Information
LIFE SUPPORT POLICY NATIONAL'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user.
National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support @ nsc.com www.national.com National Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: europe.support @ nsc.com Deutsch Tel: +49 (0) 69 9508 6208 English Tel: +44 (0) 870 24 0 2171 Francais Tel: +33 (0) 1 41 91 8790
2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: ap.support@nsc.com
National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
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