w83627ef Winbond Electronics Corp America, w83627ef Datasheet - Page 48

• Manufacturer Part Number: w83627ef
• Description: Lpc Super I/o For Desktop & Server
• Manufacturer: Winbond Electronics Corp America

6.8
Address Port and Data Port are set in the register CR60 and CR61 of Device B which is Hardware
Monitor Device. The value in CR60 is high byte and that in CR61 is low byte. For example, setting
CR60 to 02 and CR61 to 90 causes the Address Port to be 0x295 and Data Port to be 0x296.
6.8.1
Address Port:
Power on Default Value
Attribute:
Size:
Bit7: Reserved
Bit 6-0: Read/Write
6.8.2
Data Port:
Power on Default Value
Attribute:
Size:
Bit 7-0: Data to be read from or to be written to RAM and Register.
(Power On default 0)
Registers and RAM
Reserved
Address Port (Port x5h)
Data Port (Port x6h)
Bit 7
Bit 6
A6
7
7
Port x5h
00h
Bit 6:0 Read/write , Bit 7: Reserved
8 bits
Port x6h
00h
Read/write
8 bits
6
6
5
Bit 5
5
A5
4
W83627EHF/EF, W83627EHG/EG
4
Address Pointer (Power On default 00h)
3
3
2
Bit 4
- 42 -
2
A4
1
1
0
0
Bit 3
A3
Data
Data
Bit 2
A2
Bit 1
A1
Bit 0
A0