82371FB Datasheet, PDF (53/122 Pages) Intel Corporation – 82371FB (PIIX) AND 82371SB (PIIX3) PCI ISA IDE XCELERATOR

E
82371FB (PIIX) AND 82371SB (PIIX3)
Bit
5:4
3:2
1:0
Description
Secondary Drive 1 Recovery Time (SRTC1). This field selects the minimum number of
clocks between the last IORDY# sample point and the DIOx# strobe of the next cycle for the
slave drive on the secondary channel.
Bits[5:4]
00
01
10
11
Number Of Clocks
4
3
2
1
Primary Drive 1 IORDY Sample Point (PISP1). This field selects the number of clocks
between DIOx# assertion and the first IORDY sample point for the slave drive on the primary
channel.
Bits[3:2]
00
01
10
11
Number Of Clocks
5
4
3
2
Primary Drive 1 Recovery Time (PRTC1). This field selects the minimum number of clocks
between the last IORDY# sample point and the DIOx# strobe of the next cycle for the slave
drive on the primary channel.
Bits[1:0]
00
01
10
11
Number Of Clocks
4
3
2
1
2.4. PCI Configuration RegistersUniversal Serial Bus (Function 2) (PIIX3
Only)
2.4.1. VID—VENDOR IDENTIFICATION REGISTER (Function 2) (PIIX3)
Address Offset:
Default Value:
Attribute:
00–01h
8086h
Read Only
The VID Register contains the vendor identification number. This register, along with the Device Identification
Register, uniquely identifies any PCI device. Writes to this register have no effect.
Bit
Description
15:0 Vendor Identification Number. This is a 16-bit value assigned to Intel.
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