CL-PD6833-VC-A View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
'CL-PD6833-VC-A' PDF : 216 Pages View PDF
CL-PD6833
PCI-to-CardBus Host Adapter
NOTE: The General Mapping method is not currently used by PC Card software vendors.
Table 9-2 shows the different registers that have to be programmed to use the various flavors of the
Standard and General Mapping methods.
Table 9-2. Window Mapping Registers
Window
Type Select
PCI Space
Control
PC Card
PCI Bus PC Card Window Configuration
Space Control
Reset to ‘0’
Don’t Care
Don’t Care
I/O
I/O
Standard Mapping
Reset to ‘0’
Don’t Care
Don’t Care
Memory Memory
Standard Mapping
Set to ‘1’
Set to ‘1’
Set to ‘1’
I/O
I/O
General Mapping
Set to ‘1’
Set to ‘1’
Reset to ‘0’
I/O
Memory
General Mapping
Set to ‘1’
Reset to ‘0’
Reset to ‘0’
Memory Memory
General Mapping
Set to ‘1’
Reset to ‘0’
Set to ‘1’
Memory
I/O
General Mapping
The General Window Mapping registers are first presented describing the functionality of the registers
when configured in I/O mode. Thereafter, the same register functionality is described when configured in
Memory mode. This facilitates understanding since the bit assignments and definitions of these registers
are different in the I/O mode and Memory mode.
NOTE: A combination of the Standard Mapping method and General Mapping method can be used.
104
WINDOW MAPPING REGISTERS
ADVANCE DATA BOOK v0.3
June 1998
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