PD6710/
’
22
—
ISA-to-PC-Card (PCMCIA) Controllers
60
Datasheet
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
“
System I/O Map 0
–
1 Start Address High
”
on page 60
).
8.3
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.
8.4
System I/O Map 0
–
1 End Address Low
There are two separate System I/O Map End Address Low registers, each with identical fields.
These registers are located at the following indexes:
Register Name:
System I/O Map 0
–
1 Start Address High
Index:
09h, 0Dh
Register Per:
socket
Register Compatibility Type:
365
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Start Address 15:8
RW:00000000
Register Name:
System I/O Map 0
–
1 End Address Low
Index:
0Ah, 0Eh
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 7:0
RW:00000000