NH82801DB S L8DE Intel, NH82801DB S L8DE Datasheet - Page 369
NH82801DB S L8DE
Manufacturer Part Number
NH82801DB S L8DE
Description
Manufacturer
Intel
Datasheet
1.NH82801DB_S_L8DE.pdf
(587 pages)
Specifications of NH82801DB S L8DE
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9.8.3.15
Intel
®
82801DB ICH4 Datasheet
DEVTRAP_EN— Device Trap Enable Register
I/O Address:
Default Value
Lockable:
Power Well:
This register enables the individual trap ranges to generate an SMI# when the corresponding status
bit in the DEVACT_STS register is set. When a range is enabled, I/O cycles associated with that
range will not be forwarded to LPC or IDE.
15:14
Bit
Bit
9:6
13
12
11
10
2
1
0
5
4
3
IDES0_ACT_STS — R/WC. IDE Secondary Drive 0.
0 = Indicates that there has been no access to this device’s I/O range.
1 = This device’s I/O range has been accessed. Clear this bit by writing a 1 to the bit location.
IDEP1_ACT_STS — R/WC. IDE Primary Drive 1.
0 = Indicates that there has been no access to this device’s I/O range.
1 = This device’s I/O range has been accessed. Clear this bit by writing a 1 to the bit location.
IDEP0_ACT_STS — R/WC. IDE Primary Drive 0.
0 = Indicates that there has been no access to this device’s I/O range.
1 = This device’s I/O range has been accessed. Clear this bit by writing a 1 to the bit location.
Reserved
ADLIB_TRP_EN — R/W. Ad-Lib.
0 = Disable.
1 = Enable.
KBC_TRP_EN — R/W. KBC (60/64h).
0 = Disable.
1 = Enable.
MIDI_TRP_EN — R/W. MIDI.
0 = Disable.
1 = Enable.
AUDIO_TRP_EN — R/W. Audio (Sound Blaster “OR’d” with MSS).
0 = Disable.
1 = Enable.
Reserved
LEG_IO_TRP_EN — R/W. Parallel Port, Serial Port 1, Serial Port 2, Floppy Disk controller.
0 = Disable.
1 = Enable.
Reserved
IDES1_TRP_EN — R/W. IDE Secondary Drive 1.
0 = Disable.
1 = Enable.
PMBASE +48h
0000h
No
Core
Description
Description
Attribute:
Size:
Usage:
LPC Interface Bridge Registers (D31:F0)
R/W
16 bit
Legacy Only
369
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