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Teilenummer | LC82151 |
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Beschreibung | Single-Chip Facsimile Controller | |
Hersteller | Sanyo Semicon Device | |
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Gesamt 8 Seiten ![]() No. *5601
CMOS LSI
LC82151
Single-Chip Facsimile Controller
Preliminary
Overview
The LC82151 is a facsimile controller that integrates the
main functions required by facsimile systems on a single
chip. The LC82151 includes a FAX modem with ADPCM
and HDLC functions, image processing functions that can
create high-quality binary image data without external
memory, a CODEC accelerator, a CPU and CPU
peripheral circuits, general-purpose I/O ports, and other
functions. A facsimile system with excellent cost-
performance characteristics can be created easily by
providing ROM and RAM.
Functions
• CPU and peripheral circuits
– High-speed 16-bit CPU (65C816) operating at
7.4 MHz
– 16-MB program address space
– CODEC accelerator
– Two-channel DMA controller
– Four 16-bit timers
– 16-bit watchdog timer
– TPH interface
– Serial I/O interface
– Parallel I/O: 10 to 43 pins
• Image processing
– Processes 2048 pixels per line
– Processing speed: 540 ns per pixel (maximum)
– Built-in 8-bit A/D converter (Includes a sensor signal
delay function.)
– Sensor drive circuit (Supports CCDs and all major
CIS devices.)
– Distortion correction (White distortion: 8-pixel
averaging correction, black correction: Allows the
black correction subtraction data to be set.)
– γ-correction (Supports user-defined correction curves.)
– Simple binary conversion processing (fixed threshold
and density-adaptive threshold)
– Halftone processing error diffusion method (64 levels)
– Image reduction (decimation, fine black line retention,
and fine white line retention)
• Modem
– Group 3 FAX modem
ITU-T V.29 (9600, 7200, and 4800 bps)
ITU-T V.27ter (4800 and 2400 bps)
ITU-T V.21ch2 (300 bps)
– Simultaneous high/low-speed wait function
– Short training function (ITU-T V.27ter only)
– HDLC function (for all transmission speeds)
– Synthesizer function
– Caller ID function
Bell 202 (1200 bps)
ITU-T V.23 (1200 bps)
– ADPCM function
Encoding: 2, 3, or 4 bits
Sampling frequencies: 9.6, 7.2, 4.8, and 3.6 kHz
– RTC low-voltage backup
– 5-V single-voltage power supply
Package Dimension
unit: mm
3214-SQFP144
[LC82151]
SANYO: SQFP144
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
43097 (OT) No. 5601-1/8
![]() ![]() Sample Application
LC82151
Document
Fluorescent lamp
Stepping motor
Image
Lens sensor
Motor driver
Cutter
Temperature
sensor
Thermal head
Stepping motor
Paper
Facsimile
controller
LC82151
NCU
Public telephone
network
Telephone
RAM
ROM
To LCD
To key matrix
No. 5601-6/8
6 Page | ||
Seiten | Gesamt 8 Seiten | |
PDF Download | [ LC82151 Schematic.PDF ] |
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