W88111AF 데이터 시트보기 (PDF) - Winbond

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W88111AF

ATAPI CD-ROM Decoder & Controller

Winbond 

W88111AF/W88112F

ATAPI CD-ROM Decoder & Controller

This specification is subject to change without notice.

Preliminary/Confidential

GENERAL DESCRIPTION

The Winbond W88111AF/W88112F supports ATAPI CD-ROM specification (SFF 8020). Some

ATAPI operations are executed by hardware to minimize system overhead, including ATAPI

command and packet transfer, data transfer, ATAPI Soft Reset command, and Executive Drive

Diagnostics command. It also features shadow drive support.

The Winbond W88111AF/W88112F supports various types of microprocessors, DRAMs, and DSPs.

The W88111AF/W88112F supports up to 12/20-fold drive speed. It also supports CD-ROM, CD-

ROM/XA, CD-I, Video-CD, Photo-CD , and CD-Plus formats.

The functions of W88111AF/W88112F include CD-ROM data de-scrambling, real-time error

correction of Layer 3 Reed-Solomon Product-like Code (RSPC), error detection, and data transfer to

the host.

The W88111AF/W88112F features real-time ECC correction of one byte per P-word and Q-word. It

can also perform repeated ECC passes to increase the reliability of data.

The W88111AF/W88112F supports up to 1Mbytes of DRAM. It also supports ring-control-register to

add flexibility of external RAM control.

The host interface of W88111AF/W88112F supports data transfer using PIO, single word DMA, and

multi-word DMA modes. There is an 8-byte FIFO to improve the IDE interface throughput.

The W88111AF/W88112F supports multi-block-transfer from external RAM to the host.

* The W88112F supports accelerated error correction/detection to improve system performance.

* The W88112F supports automatic target header search, automatic header comparison, and decoder

interrupt status collection to reduce firmware overhead.

W88111AF/W88112F GENERAL FEATURES

⇒ Supports ATAPI CD-ROM standard (SFF 8020)

⇒ Supports CD-ROM, CD-ROM/XA, CD-I, Video-CD, Photo-CD, and CD-Plus formats

⇒ Supports drive speed up to 12-fold

⇒ Supports various types of microprocessors and DSPs

⇒ Supports various types of industry-standard DRAMs

⇒ Supports ring-control-register to add flexibility of DRAM control

⇒ Supports CD-ROM data descrambling

⇒ Supports real-time correction of one byte error per P-word and Q-word

⇒ Supports error detection of CD-ROM data

⇒ Supports repeated error correction and error detection passes

⇒ 8-byte FIFO to improve IDE interface throughput

⇒ Data transfer to host in PIO, single word DMA, and multi-word DMA modes

⇒ Multi-block transfer

⇒ 100-pin PQFP

Publication Release Date: Aug, 1996

-5-

Preliminary/ Confidential Revision A0.1

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