Specifications

PC/II+p Board Technical Reference Manual 46

7.12 IDE / ATA Ultra 33 Interface

PC/II+p contains an integrated IDE/ATA Master controller. The IDE interface signals are provided on the

Mass I/O Connector, J903 – refer to Table 18

The controller is capable of accelerated PIO data transfers as well as acting as a PCI bus master on behalf

of an IDE DMA slave device.

The controller features are:

• Supports PCI bus mastering

• Supports transfer rate up to 132 Mbytes/Second

• Supports ATA PIO modes 0, 1, 2, 3, 4 & 6 timing

• Supports ATA DMA modes 0, 1, 2 on enhanced specifications

• Supports compatible and native PCI mode

• Contains 10 doubleword FIFO for posted-write or read-ahead buffer, for each channel

• Supports programmable command and data transfer timing for each device

• Supports operation of two hard disks, even if they have different PIO modes

• Supports ATAPI CD-ROM concurrent operation

• Supports simultaneous hard disk and CD-ROM operations

• Supports Ultra 33 high performance ATA bus for 33 Mbytes/Second transfer rate

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.