ISA-to-PC-Card (PCMCIA) Controllers — PD6710/’22
10.6
Extended Index
Register Name: Extended Index
Index: 2Eh
Register Per: socket
Register Compatibility Type: ext.
Bit 7
Bit 6
Bit 5
Bit 4
Extended Index
RW:00000000
Bit 3
Bit 2
Bit 1
Bit 0
In the PD6722 only, this register controls which of the following registers at index 2Fh can be
accessed:
Extended
Register Name at Index 2Fh
Register Index
Scratchpad
Data Mask 0
Data Mask 1
00h
01h
02h
Extension Control 1
(formerly named DMA Control)
03h
Maximum DMA Acknowledge Delay
Reserved
04h
05h–09h
0Ah
External Data
Extension Control 2
0Bh
10.7
Extended Data
Register Name: Extended Data
Index: 2Fh
Register Per: socket
Register Compatibility Type: ext.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Extended Data
The data in this register allows the registers indicated by the Extended Index register to be read
and written. The value of this register is the value of the register selected by the Extended Index
register.
Datasheet
77