Specifications

PC/II+p Board Technical Reference Manual 44

7.11 Floppy Disk Interface

PC/II+p contains an integrated 2.88 MB (formatted) Floppy Disk Drive Controller. The M1543-based

controller interface signals are made available on the Mass I/O connector, J904. For signal definitions, refer

to Table 17

The controller is software compatible with the industry-standard 82077SL and PD765A architecture and

supports 16-byte data FIFOs. It contains a high-performance data separator. It supports 3 modes of 3.5"

Floppy drives – 720 KB, 1.2 MB and 1.44 MB. It supports standard 1 Mbps, 500 Kbps, 300 Kbps and 250

Kbps data transfer rates. The controller also supports swappable drives A and B.

For more detailed information about the Floppy Disk Interface, please refer to the Acer Laboratories M1543C

datasheet, found in section 2

, "Reference Documents" in this document.