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
9.2.2
System Memory Map 0–4 Start Address High
Register Name: System Memory Map 0–4 Start Address High
I/O Index: 11h, 19h, 21h, 29h, 31h
Memory Offset: 811h, 819h, 821h, 829h, 831h
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Register Per: socket
Register Compatibility Type: 365
Bit 2
Bit 1
Bit 0
Window Data Compatibility
Size
Bit
R/W:0
R/W:0
Scratchpad Bits
R/W:00
Start Address 23:20
R/W:0000
There are five separate System Memory Map Start Address High registers, each with identical fields.
These registers are located at the following indexes:
Index (Socket A)
11h
19h
21h
29h
31h
Register
System Memory Map 0 Start Address High
System Memory Map 1 Start Address High
System Memory Map 2 Start Address High
System Memory Map 3 Start Address High
System Memory Map 4 Start Address High
Bits 3:0 — Start Address 23:20
This field contains the most-significant four bits of the Start Address. See the description of the
Start Address field associated with bits 7:0 of the System Memory Map 0–4 Start Address Low
register (on page 110).
Bits 5:4 — Scratchpad Bits
Bit 6 — Compatibility Bit
Bit 7 — Window Data Size
0
8-bit data path to the card.
1
16-bit data path to the card.
This bit determines the data path size to the card.
June 1998
ADVANCE DATA BOOK v0.3
WINDOW MAPPING REGISTERS
111
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