NH82801DBSL8DE 869490 Intel, NH82801DBSL8DE 869490 Datasheet - Page 149
NH82801DBSL8DE 869490
Manufacturer Part Number
NH82801DBSL8DE 869490
Description
Manufacturer
Intel
Datasheet
1.NH82801DBSL8DE_869490.pdf
(587 pages)
Specifications of NH82801DBSL8DE 869490
Lead Free Status / RoHS Status
Compliant
- Current page: 149 of 587
- Download datasheet (7Mb)
5.12.9.1
Intel
Addr
00h
01h
02h
03h
04h
05h
06h
07h
08h
I/O
®
Table 5-46. Write Only Registers with Read Paths in ALT Access Mode (Sheet 1 of 2)
82801DB ICH4 Datasheet
Rds
# of
2
2
2
2
2
2
2
2
6
Access
For other operating systems (e.g., MS-DOS) the BIOS should restore the timer back to 54.6 ms
before passing control to the OS. If the BIOS is entering ALT access mode before entering the
suspend state it is not necessary to restore the timer contents after the exit from ALT access mode.
Write Only Registers with Read Paths in ALT Access Mode
The registers described in
field in the table indicates which register will be returned per access to that port.
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
3
4
5
6
Restore Data
DMA Chan 0 base address low byte
DMA Chan 0 base address high
byte
DMA Chan 0 base count low byte
DMA Chan 0 base count high byte
DMA Chan 1 base address low byte
DMA Chan 1 base address high
byte
DMA Chan 1 base count low byte
DMA Chan 1 base count high byte
DMA Chan 2 base address low byte
DMA Chan 2 base address high
byte
DMA Chan 2 base count low byte
DMA Chan 2 base count high byte
DMA Chan 3 base address low byte
DMA Chan 3 base address high
byte
DMA Chan 3 base count low byte
DMA Chan 3 base count high byte
DMA Chan 0–3 Command
DMA Chan 0–3 Request
DMA Chan 0 Mode: Bits(1:0) = “00”
DMA Chan 1 Mode: Bits(1:0) = “01”
DMA Chan 2 Mode: Bits(1:0) = “10”
DMA Chan 3 Mode: Bits(1:0) = “11”.
Data
Table 5-46
2
have read paths in ALT access mode. The access number
Addr
CCh
CAh
CEh
C4h
C6h
C8h
40h
41h
42h
70h
I/O
Rds
# of
7
1
1
1
2
2
2
2
2
2
Access
1
2
3
4
5
6
7
1
2
1
2
1
2
1
2
1
2
1
2
Timer Counter 1 base count low byte
Timer Counter 1 status, bits [5:0]
Timer Counter 2 status, bits [5:0]
DMA Chan 5 base address high byte
DMA Chan 6 base address high byte
DMA Chan 6 base count high byte
DMA Chan 7 base address high byte
DMA Chan 7 base count high byte
Restore Data
Timer Counter 0 status, bits [5:0]
Timer Counter 0 base count low byte
Timer Counter 0 base count high byte
Timer Counter 1 base count high byte
Timer Counter 2 base count low byte
Timer Counter 2 base count high byte
Bit 7 = NMI Enable,
Bits [6:0] = RTC Address
DMA Chan 5 base address low byte
DMA Chan 5 base count low byte
DMA Chan 5 base count high byte
DMA Chan 6 base address low byte
DMA Chan 6 base count low byte
DMA Chan 7 base address low byte
DMA Chan 7 base count low byte
Functional Description
Data
149
Related parts for NH82801DBSL8DE 869490
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Intel 82801DB I/O Controller Hub (ICH4), Pb-Free SLI
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Intel
Datasheet:
Part Number:
Description:
Microprocessor: Intel Celeron M Processor 320 and Ultra Low Voltage Intel Celeron M Processor at 600MHz
Manufacturer:
Intel Corporation
Part Number:
Description:
Intel 82550 Fast Ethernet Multifunction PCI/CardBus Controller
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel StrataFlash memory 32 Mbit. Access speed 120 ns
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel StrataFlash memory 32 Mbit. Access speed 120 ns
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel StrataFlash memory 64 Mbit. Access speed 150 ns
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel StrataFlash memory 32 Mbit. Access speed 100 ns
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
DA28F640J5A-1505 Volt Intel StrataFlash Memory
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
5 Volt Intel StrataFlash?? Memory
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
5 Volt Intel StrataFlash?? Memory
Manufacturer:
Intel Corporation
Part Number:
Description:
Intel 6300ESB I/O Controller Hub
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel 82801FB I/O Controller Hub (ICH6)
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel Strataflash Memory28F128J3 28F640J3 28F320J3
Manufacturer:
Intel Corporation
Datasheet: