User`s manual

DIGITAL-LOGIC AG MSLB-P5 Manual V0.3
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Extended Fixed Disk Parameter Table
Byte Type Description
0-1 Word I/O port address
2-3 Word Control port address
4 Bit 0-3 Reserved, must be 0
Bit 4 0 = Master, 1 = Slave
Bit 5 Reserved, must be 0
Bit 6 1 = LBA enabled
Bit 7 Reserved, must be 1
5 Bits0-3 Phoenix Proprietrary
Bits 4-7 Reserved, must be 0
6 Bits 0-3 IRQ for this drive
Bits 4-7 Reserved, must be 0
7 Byte Sector count for multi-
sectored transfers
8 Bits 0-3 DMA channel
Bits 4-7 DMA type
9 Bits 0-3 PIO type
Bits 1-7 Reserved, must be 0
Byte Type Description
10-11 Bit 01 = Fast PIO access enabled
Bit 11 = DMA access enabled
Bit 21 = Block PIO access enabled
Bit 31 = CHS translation enabled
Bit 41 = LBA translation enabled
Bit 51 = Removable media
Bit 6 1 = CD ROM
Bit 7 1 = 32-bit transfer mode
Bit 81 = ATAPI Device uses
Interrupt DRQ
Bits 9-10 CHS Translation Type
Bits 11-15 Reserved, must be 0
12-13 Byte Reserved, must be 0
14 Byte Extension Revision number
15 Byte Checksum, 2s complement of
the sum of bytes 0-14
16.6.8 Interrupt 13h–Bootable CD-ROM Services
Bootable CD-ROM Services 4Ah-4Ch use a pointer to the Specification Packet, described here:
Bootable CD-ROM Specification Packet
Offset Type Description
0h Byte Packet size, currently 13h
1h Byte Boot media type:
Bits 0-3:
00h = No emulation
01h = 1.2 MB diskette
02h = 1.44 MB diskette
03h = 2.88 MB diskette
04h = Hard disk (drive C:)
Bits 05h-07h: Reserved
Bit 6: 01h = Sysem has ATAPI driver
with 8 & 9 below describing IDE interface.
Bit 7: 01h = System has SCSI drivers
with 8 & 9 below describing SCSI interface
2h Byte Drive number:
00h = Floppy image
80 = Bootable hard disk
81h -FFh = "Non-bootable" or "No emulation"
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