VT82C686B

Manufacturer Part NumberVT82C686B
ManufacturerETC-unknow
VT82C686B datasheet
 


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General Purpose I/O Registers
I/O Offset 44 – External SMI / GPI Input Value ............. RO
Depending on the configuration, up to 8 external SCI/SMI
ports are available as indicated below. The state of these
inputs may be read in this register.
7
RING# Input Value................................. (GPI7 pin)
6
SMBALRT# Input Value ....................... (GPI6 pin)
5
PME# Input Value .................................. (GPI5 pin)
4
SLPBTN# Input Value............................ (GPI4 pin)
3
General Purpose Input 17 Value ......... (GPI17 pin)
2
General Purpose Input 16 Value ......... (GPI16 pin)
1
General Purpose Input 1 Value ............. (GPI1 pin)
0
EXTSMI# Input Value
I/O Offset 45 – SMI / IRQ / Resume Status ..................... RO
7-5
Reserved
........................................ always reads 0
4
Latest PCSn Status
0
Latest PCSn was an I/O Read
1
Latest PCSn was an I/O Write
3
FM SMI or Serial SMI Status
2
Hardware Monitor IRQ Status
1
SMBus IRQ Status
0
SMBus Resume Status
Revision 1.71 June 9, 2000
I/O Offset 4B-48 - GPI Port Input Value (GPIVAL) ...... RO
......................................... always read 0
31-24 Reserved
23-16 GPI[23-16] by Refresh Scan .................... Read Only
......................................... always read 0
15-12 Reserved
11-0 GPI[11-0] Input Value ............................. Read Only
I/O Offset 4F-4C - GPO Port Output Value (GPOVAL) RW
Reads from this register return the last value written (held on
chip)
........................................always reads 0
31-26 Reserved
25-0 GPO[25-0] Output Value................def = 3FFFFFFh
-98-
Power Management I/O-Space Registers
VT82C686B