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.

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

W88112F ENHANCED FEATURES

➤ Supports drive speed up to 20-fold with 45ns DRAM

➤ Up to 33 acceleration of error correction/detection

➤ Automatic target header search

➤ Automatic header comparison

➤ Decoder interrupt status collection

➤ Status valid timing control for high drive speed