CL-PD6710 Datasheet, PDF (65/128 Pages) Cirrus Logic – ISA-TOOPC-CARD HOST ADAPTERS

CL-PD6710/’22
ISA–to–PC-Card Host Adapters
9.6 Extended Index
Register Name: Extended Index
Index: 2Eh
Register Per: socket
Register Compatibility Type: ext.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Extended Index
RW:00000000
In the CL-PD6722 only, this register controls which of the following registers at index 2Fh can be
accessed:
Register Name at Index 2Fh
Scratchpad
Data Mask 0
Data Mask 1
Extension Control 1
(formerly named DMA Control)
Maximum DMA Acknowledge Delay
Reserved
External Data
Extension Control 2
Extended
Register Index
00h
01h
02h
03h
04h
05h–09h
0Ah
0Bh
9.7 Extended Data
Register Name: Extended Data
Index: 2Fh
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Extended Data
Register Per: socket
Register Compatibility Type: ext.
Bit 2
Bit 1
Bit 0
The data in this register allows the registers indicated by the Extended Index register to be read and writ-
ten. The value of this register is the value of the register selected by the Extended Index register.
May 1997
PRELIMINARY DATA SHEET v3.1
65
EXTENSION REGISTERS