876784 Intel, 876784 Datasheet - Page 609

• Manufacturer Part Number: 876784
• Manufacturer: Intel

Specifications of 876784

• Lead Free Status / RoHS Status: Compliant

IDE Controller Registers (D31:F1)
Intel
®
ICH7 Family Datasheet
(Desktop
(Desktop
(Desktop
(Desktop
Mobile
Mobile
Mobile
Mobile
Mobile
Only)
Only)
Only)
Only)
(Ultra
Only)
and
and
and
and
7:4
Bit
7
6
5
4
3
2
1
0
Drive 1 DMA Timing Enable (DTE1) — R/W.
0 = Disable.
1 = Enable the fast timing mode for DMA transfers only for this drive. PIO transfers
Drive 1 Prefetch/Posting Enable (PPE1) — R/W.
0 = Disable.
1 = Enable Prefetch and posting to the IDE data port for this drive.
Drive 1 IORDY Sample Point Enable (IE1) — R/W.
0 = Disable IORDY sampling for this drive.
1 = Enable IORDY sampling for this drive.
Drive 1 Fast Timing Bank (TIME1) — R/W.
0 = Accesses to the data port will use compatible timings for this drive.
1 = When this bit = 1 and bit 14 = 0, accesses to the data port will use bits 13:12 for
Reserved
Drive 0 DMA Timing Enable (DTE0) — R/W.
0 = Disable
1 = Enable fast timing mode for DMA transfers only for this drive. PIO transfers to
Drive 0 Prefetch/Posting Enable (PPE0) — R/W.
0 = Disable prefetch and posting to the IDE data port for this drive.
1 = Enable prefetch and posting to the IDE data port for this drive.
Drive 0 IORDY Sample Point Enable (IE0) — R/W.
0 = Disable IORDY sampling is disabled for this drive.
1 = Enable IORDY sampling for this drive.
Drive 0 Fast Timing Bank (TIME0) — R/W.
0 = Accesses to the data port will use compatible timings for this drive.
1 = Accesses to the data port will use bits 13:12 for the IORDY sample point, and
to the IDE data port will run in compatible timing.
the IORDY sample point, and bits 9:8 for the recovery time. When this bit = 1
and bit 14 = 1, accesses to the data port will use the IORDY sample point and
recover time specified in the slave IDE timing register.
the IDE data port will run in compatible timing.
bits 9:8 for the recovery time
Description
609