
PRELIMINARY DATA SHEET v3.1
CL-PD6710/’22
ISA–to–PC-Card Host Adapters
May 1997
50
I/O WINDOW MAPPING REGISTERS
Bit 7 — Timing Register Select 1
This bit determines the access timing specification for I/O Window 1 (see
page 72
).
7.2
System I/O Map 0–1 Start Address Low
There are two separate System I/O Map Start Address Low registers, each with identical fields. These
registers are located at the following indexes:
Index
8h
Ch
System I/O Map Start Address Low
System I/O Map 0 Start Address Low
System I/O Map 1 Start Address Low
Bits 7:0 — Start Address 7:0
This register contains the least-significant byte of the address that specifies the beginning of the
I/O space within the corresponding I/O map. I/O accesses that are equal or above this address
and equal or below the corresponding System I/O Map End Address will be mapped into the I/O
space of the corresponding PC Card.
The most-significant byte is located in the
System I/O Map 0–1 Start Address High
register (see
page
50
).
7.3
System I/O Map 0–1 Start Address High
There are two separate System I/O Map Start Address High registers, each with identical fields. These
registers are located at the following indexes:
Index
9h
Dh
System I/O Map Start Address High
System I/O Map 0 Start Address High
System I/O Map 1 Start Address High
Bits 15:8 — Start Address 15:8
This register contains the most-significant byte of the Start Address. See the description of the Start
Address field associated with bits 7:0 of the
System I/O Map 0–1 Start Address Low
register.
0
1
Accesses made with timing specified in Timing Set 0.
Accesses made with timing specified in Timing Set 1.
Register Name:
System I/O Map 0–1 Start Address Low
Index:
08h, 0Ch
Bit
7
Bit
6
Register Per: socket
Register Compatibility Type: 365
Bit
1
Bit
5
Bit
4
Bit
3
Bit
2
Bit
0
Start Address 7:0
RW:00000000
Register Name:
System I/O Map 0–1 Start Address High
Index:
09h, 0Dh
Bit
7
Bit
6
Register Per: socket
Bit
1
Bit
5
Bit
4
Bit
3
Bit
2
Bit
0
Start Address 15:8
RW:00000000