Datasheet LM9702SL, LM9702DEV-KIT, LM9702CAMBOARD Datasheet (NSC)

2002 National Semiconductor Corporation www.national.com

October 2002

LM9702 Real Time Digital Image Processor

General Description

The LM97 02 co ntai ns all function s nee de d to build a VGA digita l
stil l and/or video camera. It incorporate s a 16 bit RISC micr opro­cessor, a flexible image processing pipeline, hardware JPEG
compression, and the required periphery modules in a single IC.
This architecture allows a very fast click-to-click time and full res­olution video wi thout sac rificing image qua lity or c ost; becau se
the co mp uta t io n ex tensive op er a ti on s ar e p r oc es s ed by c i r cu itry
dedica ted to image processing. T he highly o ptimized mem ory
manage ment provided by the LM9702 keeps the memor y cost of
the complete camera to a minimum.

A chip set compr ising of the LM9702 and a National VGA CMOS
image sensor complemented by a lens, battery, compact flash,
power management for the battery, and LCD (optional) yields a
comple te high perfo rmance cost effective digital still and/or video
camera.

Features

! Embedded 16 bit RISC processor system

- Up to 16M-bytes of external memory addressing space

- 16K-bytes Internal RAM

- 6 channe l DMA

- 8 channel versatile timer

- Interrupt controller

- 16 input wake up module

- Full dupl ex USA RT

- µwire/SPI serial port

- 16 ge neral purpose IOs (GPIO)

- SD Memory Card Interface (SPI Mode)

! 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 adju stment

- Raw data statistics measurement engine

! Color Im age processing

- Bayer to RGB Interpolation

- Fully programmable color correc tion

- Image sharpening

- Programmable gamma correction

- Thumbn ai l ge ne r at ion

- RGB to YCrCb Conversion

- Digital Gain

! Hardware JPEG Co mp r e ss io n f or both video an d sn aps ho t
! System management

- Internal Clock generation from 12MHz Crystal

- Power management

- Reset generation

! JTAG based serial on-chip debug interface

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.
! Industria l Cam er as

Key Specifications

Array Formats

CIF,VGA, SXGA (B/W)

Input Color Form a t

Bayer Pattern

Digital I m ag e Pr oc es s or

10 bit (12 bit internal)

Compression

-Format

-Ratio

Base Li ne JPE G
Programmable

Video In Frame Rate

up to 15MHz pixel clock

Video O utputs

-USART

-USB

up to 921.6K-bits per second
960K-byt e/s

External CR16C Memory

- Memory Type

- Address Space

- Speed

SRAM, Flash, Compact Flash,
EEPROM
up to 16 Mbyte
up to 36MHz

Serial Interfaces

- ACCESS.bus

- µwire/SPI

up to 400KHz
up to 6.0 MHz

16 bit RISC Processor

-MIPS

- Internal Memory

up to 36
16K-byt es

Clock Spee d

up 60Mhz fr om 12MHz Crystal

Power Supply

-Core

-IO

2.25 to 2.75 Volt

2.7 to 3.6 Volt

Average Power Dissipation

90mW

Package

128 Laminated CSP

Opera tin g t e mp erature

-10

o

C to +85oC

System Block Diagr am

LM9702

CMOS Sensor

Module

Flash

or

RAM

USART

USB

SD CARD

LM9702 Real Time Digital Image Processor

2 www.national.com

Overall Chip Block Diagram

Figure 1. Chip Block Diagram

Ordering Information

Item Descr iption Part Number

LM9702 LM9702 Digital Image Processor with Integrated Pipeline LM9702SL

Color

Interpolation

Edge

Enhancement

Color

Correction

Gamma

Correction

Scaling

Digital Color Processor

Bus Interface

Unit

RGB to YCrCb

Conversion

ACCESS.bus

APB

Config

µwire/SPI

Master

GPIO

CR16C

16K-Bytes

6 Channel

Core Bus
Controller

Interrupt

Controller

CR16C-Microprocessor System

Core Bus

Clk Gen

System Mgmt

AMBA Peripheral Bus

acb

mwire

SDI

+

Debug I/F

usb

sys

DMA

16 Pin

16 Input

Wake Up

usart

gpio

int

jtag

USB
V1.1

Image PreProcessor

Sensor I/F

Offset

Config & Raw Statistics

Bad Pixel

Correction

Color Gain

sen

Bridge

USART

Versatile

Timer

timer

Bus Interface

Unit

Pwr Mgt

POR

Frame

Skipping

mem

Measurement Engine

Compression

RAM

Config

Config

JPEG

Encoder

Bus Interface Unit

SD

(SPI Mode)

sd

Gain

3 www.national.com

Related Products

Item Descr iption Part Number

Development
Kit

LM9702 digital image processor camera development kit. This kit includes
the above mentioned camera base board, a power supply board, stat us
LCD board, power adapter, windows application software SNAPS DEV.

LM9702DEV-KIT

Camera
Board

LM9702/04 digital image processor camera base board.

LM9702CAMBOARD
LM9704CAMBOARD

Software
Devlopment
Kit

This k it includes CR16C software development tools, Nati onal’s Camera
Opera ting System (NCOS) & an iTAG emulator.

CR16-IM02-00

Compact­Flash Adaptor

This is a small 16 bit CompactFlash adaptor board that can be attach ed to
the LM9702CamBoard/LM9704CamBoard al lowing CompactFlash card s to
be connected to the main system memo ry bus

LM97COMPACFLASH

SD/MMC
Adaptor

This is a small SD/MMC adaptor board that can be atta ched to the
LM9702CamBoard/LM9704CamBoard allowing SD and MMC cards to be
connected to the LM9702/LM9704 digital image processor

LM97SDCARD

Head Boards

VGA color sen sor LM9627
VGA monochrome sensor LM9617
VGA color sen sor LM9628
VGA monochrome sensor LM9618
128x10 0 mo no c hr o m e se ns or LM 9630
VGA monochrome sensor LM9637
VGA color sen sor LM9647
SXGA monochrome sensor LM9638
SXGA color sens or LM9648

LM9627HEADBOARD
LM9617HEADBOARD
LM9628HEADBOARD
LM9618HEADBOARD
LM9630HEADBOARD
LM9637HEADBOARD
LM9647HEADBOARD
LM9638HEADBOARD
LM9648HEADBOARD

Lens Kits

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

LM96-1/3LENSKIT
LM96-1/5LENSKIT
LM96-1/4LENSKIT
LM96-1/2LENSKIT

National does not assume any respons ibility 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.

www.national.com

LM9702 Real Time Digital Image Processor

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NATIONAL'S PRODUCTS ARE NOT AUTHORIZED FO R 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 who se failure to perform whe n
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.

2. A critical component is any component of a life support
device or system whose failure to perform can be reasonably
expect ed to cause th e failure of the life support device or
system, or to affect its safety or effectiveness.

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