ATAPI CONTROLLER. AT78C1501 Datasheet

AT78C1501 Datasheet PDF, Equivalent


Part Number

AT78C1501

Description

DVD / CD ATAPI CONTROLLER

Manufacture

ATMEL Corporation

Total Page 15 Pages
PDF Download
Download AT78C1501 Datasheet PDF


AT78C1501 Datasheet
Features
Host Interface
– ATAPI Compatible (ANSI ATA-1, ATA-2, ATA-3 and ATA-4 compliant) Host Mode
– Ultra DMA Support (66 MB/sec)
– High-current (12 mA) Drivers for Direct Connection to AT Cable (slew rate
controlled)
– 256-byte Bidirectional Data FIFO to Improve Throughput
Embedded Processor
– ARM7TDMIRISC Processor
– Open Processor Architecture Protects Firmware Investment
– Wide Selection of Development Tools from ARM® and Third-party Vendors
– 1-Mbyte External Flash Interface for Code/Data
– 16-Kbyte Internal SRAM for Data
Buffer Manager
– Supports SDRAM up to 32 Mbytes (16M x 16)
– DRAM Bandwidth of up to 160 Mbytes/sec (burst)
– Priority Buffer Arbiter
Read Channel Interface
– Nibble Interface Speed (code cell rate): 40 MHz (160 Mbs, DVD 5X)
– EFM (8/14) and EFM+ (8/16) Demodulation
Write Channel Interface
– Serial Interface Speed (code cell rate): DVD 2X
– EFM (8/14) and EFM+ (8/16) Modulation
– DVD-R Pre-pit Decoder with Error Detection and Correction
– DVD+RW ADIP Decoder with Error Detection and Correction
– CD-R/RW ATIP Decoder with Error Detection
Error Correction Logic
– DVD Data Block Error Detection and Correction
– DVD EDC Error Detection
– DVD IEC Header Error Detection and Correction
– All CD Formats
Lower Power Operation with 3.3V Core and 5V Tolerant I/Os
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DVD/CD ATAPI
Controller
AT78C1501
Description
The Atmel AT78C1501 is a high-performance DVD/CD ATAPI Ultra DMA66 Interface
Controller, designed to interface to the AT78C1502 DVD Servo Controller, the
AT78C1503 DVD Read Channel and the AT78C1504 Automatic Laser Power Control
(ALPC). The interface controller (AT78C1501) contains ARM® and AVR® microcontrol-
lers, buffer management, error correction code (ECC) and encoder/decoder (ENDEC)
for DVD and CD. Also included are a writeable control store for timing generation and
an on-board frequency synthesizer to generate system frequencies from one crystal.
ATA66/ATAPI66 and I2S interfaces are provided.
The major functions of the AT78C1501 include data format encoding/decoding, error
detection/correction, buffer management, ATAPI host interface and serial interface
master. The AT78C1501 also includes an embedded ARM7 RISC Core to perform all
system (drive) microprocessor functions and an embedded AVR RISC core to perform
internal data path and buffer management control.
The AT78C1501 disk formats include DVD-ROM, DVD-RAM (Read/Write), CD-ROM,
CD-R (Read/Write), CD-RW (Read/Write), DVD-R (Read/Write), DVD-RW
(Read/Write), and DVD+RW (Read/Write).
Rev. 2049A–DVD–07/02
1

AT78C1501 Datasheet
Figure 1. DVD System Block Diagram
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DRAM Flash
AT78C1501
ATAPI I/F
Controller
DBM
ECC
SRAM
ARM7TDMI
AT78C1502
Servo
Control
System
Power
Drivers
AT78C1503
Read
Channel
AT78C1504
Laser Power
Controller
AT78C1507
Read
Channel Adj.
Sled
Focus
Spindle
Laser
T08XX
Laser Amp
AT78C1505
Pre-amp
Table 1. DC Parameters
Symbol
Parameter
Min
Nom
Max
Units
VCC
ICC
Note:
Supply Voltage
3.0 3.3 3.6
V
Operating Current
500 mA
1. Values listed are advance information and are likely to change as production silicon is characterized.
Notes
Note 1
2 AT78C1501
2049A–DVD–07/02


Features Datasheet pdf www.DataSheet4U.com Features • Host I nterface – ATAPI Compatible (ANSI ATA -1, ATA-2, ATA-3 and ATA-4 compliant) H ost Mode – Ultra DMA Support (66 MB/s ec) – High-current (12 mA) Drivers fo r Direct Connection to AT Cable (slew r ate controlled) – 256-byte Bidirectio nal Data FIFO to Improve Throughput Emb edded Processor – ARM7TDMI™ RISC Pr ocessor – Open Processor Architecture Protects Firmware Investment – Wide Selection of Development Tools from ARM ® and Third-party Vendors – 1-Mbyte External Flash Interface for Code/Data – 16-Kbyte Internal SRAM for Data Bu ffer Manager – Supports SDRAM up to 3 2 Mbytes (16M x 16) – DRAM Bandwidth of up to 160 Mbytes/sec (burst) – Pri ority Buffer Arbiter Read Channel Inter face – Nibble Interface Speed (code c ell rate): 40 MHz (160 Mbs, DVD 5X) – EFM (8/14) and EFM+ (8/16) Demodulatio n Write Channel Interface – Serial In terface Speed (code cell rate): DVD 2X – EFM (8/14) and EFM+ (8/16) Modulation – DVD-R Pre-pit Decoder with Error Detection and Correctio.
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