W83637HF_06 Datasheet, PDF (50/151 Pages) Winbond – LPC I/O

W83637HF/HG
Value RAM  Index 20h- 3Fh, continued
Address A6-A0
Description
36h
Reserved
37h
Reserved
38h
Reserved
39h
SYSTIN temperature sensor High Limit
3Ah
SYSTIN temperature sensor Hysteresis Limit
3Bh
FAN1 Fan Count Limit
Note: It is the number of counts of the internal
clock for the Low Limit of the fan speed.
3Ch
FAN2 Fan Count Limit
Note: It is the number of counts of the internal
clock for the Low Limit of the fan speed.
3Dh
FAN3 Fan Count Limit
Note: It is the number of counts of the internal
clock for the Low Limit of the fan speed.
3E- 3Fh
Reserved
Setting all ones to the high limits for voltages and fans (0111 1111 binary for temperature) means
interrupts will never be generated except the case when voltages go below the low limits.
Device ID Register - Index 49h
Register Location:
49h
Power on Default Value
03h
Attribute:
bit<7:1> Read Only; bit<0> Read/Write
Size:
8 bits
7 6 5 4 32 1 0
VID[4]
DID<6:0>
Bit 7-1: Read Only - Device ID<6:0>
Bit 0 : CPU Vcore ID [4]. The VID value is written by BIOS if the VID value can be detected. After the
VID value is written, Software/AP can use this information to identify the Vcore voltage of the
CPU.
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Publication Release Date: March, 2006
Revision 1.6