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