W83627EHF Datasheet, PDF (49/141 Pages) Winbond – evolving product from Winbonds most popular I/O family

W83627EHF/EF, W83627EHG/EG
6.8 Registers and RAM
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 (Port x5h)
Address Port:
Port x5h
Power on Default Value
00h
Attribute:
Bit 6:0 Read/write , Bit 7: Reserved
Size:
8 bits
7 6 5 4 32 1 0
Data
Bit7: Reserved
Bit 6-0: Read/Write
BIT 7
Reserved
(Power On default
0)
BIT 6
A6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
Address Pointer (Power On default 00h)
A5
A4
A3
A2
A1
BIT 0
A0
6.8.2 Data Port (Port x6h)
Data Port:
Power on Default Value
Attribute:
Size:
Port x6h
00h
Read/write
8 bits
7 6 54321 0
Data
Publication Release Date: January 18, 2006
-43-
Revision 1.0