
PRELIMINARY DATA SHEET v3.1
CL-PD6710/’22
ISA–to–PC-Card Host Adapters
May 1997
54
MEMORY WINDOW MAPPING REGISTERS
8.2
System Memory Map 0–4 Start Address High
There are five separate System Memory Map Start Address High registers, each with identical fields.
These registers are located at the following indexes:
Index
11h
19h
21h
29h
31h
System Memory Map Start Address High
System Memory Map 0 Start Address High
System Memory Map 1 Start Address High
System Memory Map 2 Start Address High
System Memory Map 3 Start Address High
System Memory Map 4 Start Address High
Bits 3:0 — Start Address 23:20
This field contains the most-significant four bits of the Start Address. See the description of the
Start Address field associated with bits 7:0 of the
System Memory Map 0–4 Start Address Low
register (see page
53
).
Bit 7 — Window Data
Size
This bit determines the data path size to the card.
8.3
System Memory Map 0–4 End Address Low
There are five separate System Memory Map End Address Low registers, each with identical fields.
These registers are located at the following indexes:
Index
12h
1Ah
22h
2Ah
32h
System Memory Map End Address Low
System Memory Map 0 End Address Low
System Memory Map 1 End Address Low
System Memory Map 2 End Address Low
System Memory Map 3 End Address Low
System Memory Map 4 End Address Low
Register Name:
System Memory Map 0–4 Start Address High
Index:
11h, 19h, 21h, 29h, 31h
Bit
7
Bit
6
Register Per: socket
Register Compatibility Type: 365
Bit
1
Bit
5
Bit
4
Bit
3
Bit
2
Bit
0
Window Data
Size
Compatibility
Bit
Scratchpad Bits
Start Address 23:20
RW:0
RW:0
RW:00
RW:0000
0
8-bit data path to the card.
1
16-bit data path to the card.
Register Name:
System Memory Map 0–4 End Address Low
Index:
12h, 1Ah, 22h, 2Ah, 32h
Bit
7
Bit
6
Register Per: socket
Register Compatibility Type: 365
Bit
1
Bit
5
Bit
4
Bit
3
Bit
2
Bit
0
End Address 19:12
RW:00000000