cl-cr3470 Cirrus Logic, Inc., cl-cr3470 Datasheet

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cl-cr3470

Manufacturer Part Number
cl-cr3470
Description
Atapi Cd-r/rw Encoder/decoder
Manufacturer
Cirrus Logic, Inc.
Datasheet

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FEATURES
General
System and Functional
Block Diagram
ATAPI
BUS
— Single-chip integration of CD-ROM decoder,
— DVD port (CL-CR3475 only)
— Highly automated and high-performance CD-Record-
— High-performance CD-ROM decoder
— Designed for easy and efficient firmware
— High-performance built-in ATAPI interface
— Fully compatible with the ATAPI Specification
— Automatic power-down interfaces when idle
— 144- and 176-pin LQFP packages available
— Built-in clock synthesizer
CD-ROM Decoder
— Supports CD-ROM, CD-I, and CD-DA (CD-Digital
— Supports various compact disc DSP (digital signal
— Supports disc speeds up to 65-MHz MCLK
— CD speeds up to 40x
CD-ROM encoder, CIRC encoder, EFM modulator,
ATIP decoder, buffer manager, and interface to SCSI
protocol ICs
able formatter
programming
SFF-8020
Audio) formats
processor) controllers
INTERFACE
ATAPI BUS
DAC
ADB
LOCAL MICROCONTROLLER
MICROCONTROLLER
BUFFER MEMORY
INTERFACE
FORMATTER
MANAGER
ENCODER
CD-ROM
BUFFER
CD-RW
(cont.)
The CL-CR3470 and CL-CR3475 are single-chip, high-
performance, highly integrated ATAPI interface devices
for the CD-R/RW (CD-Recordable/CD-Rewritable) mar-
ket. The CL-CR3470/CR3475 integrates CD-ROM
decoder, CIRC encoder, EFM modulation, ATIP
decoder, buffer manager, and ATAPI interface logic. In
addition to its CD-Rewritable capability, the CL-CR3475
features a DVD port enabling drive manufacturers to
develop a drive that reads DVD, CD-ROM, CD-R, and
CD-RW.
The CL-CR3470/CR3475 supports up to 40x read and
10x record disc speeds, allowing customers to preserve
all CD-R/E encode/decode electronics and firmware as
the disc speed requirements increase. All write
methods are supported by the CL-CR3470/CR3475
disc-at-once, track-at-once, packet recording, and
OVERVIEW
CL-CR3470/CR3475
MODULATOR
ENCODER
DECODER
DECODER
CD-ROM
ROM/RAM
CIRC
ECC
EFM
ATIP
CL-CR3470/CR3475
Encoder/Decoder
ATAPI CD-R/RW
PORT
DVD
STRATEGY
WRITE
DSP
Product Bulletin
CONTROLLER
July 1998
SERVO
CD-RW
(cont.)

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cl-cr3470 Summary of contents

Page 1

... CD-Rewritable capability, the CL-CR3475 features a DVD port enabling drive manufacturers to develop a drive that reads DVD, CD-ROM, CD-R, and CD-RW. The CL-CR3470/CR3475 supports up to 40x read and 10x record disc speeds, allowing customers to preserve all CD-R/E encode/decode electronics and firmware as the disc speed requirements increase. All write ...

Page 2

... CD-R engine (CL-CR3475 only) — Integrated EFM modulation circuitry — Integrated ATIP decoder with target ATIP search function — Provides timing for laser power on/off control CL-CR3470/CR3475 ATAPI CD-R/RW Encoder/Decoder ATAPI Host Interface — True realtime hardware/software ATAPI compatibility — Hardware implementation of ATAPI packet command ATAPI reset command — ...

Page 3

... CL-CR3470/CR3475 register set, which allow both the host and local microcontroller access. The CL-CR3470/CR3475 supports ATAPI protocols by hardware without microcontroller intervention. The CL-CR3470 is available in a 144-pin LQFP pack- age, and the CL-CR3475 is available in a 176-pin LQFP package. Benefits Enables the highest-performance CD-R/RW drives ...

Page 4

... Logic, Inc., which may be registered in some jurisdictions. Other trademarks in this document belong to their respective companies. CRUS and Cirrus Logic International, Ltd. are trade names of Cirrus Logic, Inc. Cirrus Logic, Inc. 3100 West Warren Ave., Fremont, CA 94538 TEL: 510/623-8300 FAX: 510/252-6020 CL-CR3470/CR3475 International JAPAN Tokyo TEL: 81/3-3340-9111 CHINA ...

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