SPD6729QCE Intel, SPD6729QCE Datasheet - Page 65

• Manufacturer Part Number: SPD6729QCE
• Description: PCI To PC Card (PCMCIA) Controller 208-Pin MQFP
• Manufacturer: Intel

Specifications of SPD6729QCE

• Package: 208MQFP
• Operating Temperature: 0 to 70 °C

9.0
9.1
Datasheet
Register Name: System Memory Map 0-4 Start Address Low
Index: 10h, 18h, 20h, 28h, 30h
Bit 7
Memory Window Mapping Registers
The following information about the memory map windows is important:
System Memory Map 0-4 Start Address Low
There are five separate System Memory Map Start Address Low registers, each with identical
fields. These registers are located at the following indexes:
•
•
•
•
•
Bit 6
The memory window mapping registers determine where in the PCI memory space and PC
card memory space accesses will occur. There are five memory windows that can be used
independently.
The memory windows are enabled and disabled using the Mapping Enable register (see
“Mapping Enable” on page
To specify where in the PCI space a memory window is mapped, start and end addresses are
specified. A memory window is selected whenever the appropriate Memory Map Enable bit
(see
Start and end addresses are specified with PCI Address bits 31-12. This sets the minimum size
of a memory window to 4K bytes. Memory windows are specified in the PCI memory address
space.
To ensure proper operation, none of the memory windows can overlap in the PCI address
space.
— The PCI address is greater than or equal to the appropriate System Memory Map Start
— The PCI address is less than or equal to the appropriate System Memory Map End
— The System Memory Map Upper Address register (see
Address register (see
Address register (see
Upper Address” on page
Index
10h
18h
20h
28h
30h
“Mapping
Bit 5
(Socket A)System Memory Map Start Address Low
System Memory Map 0 Start Address Low
System Memory Map 1 Start Address Low
System Memory Map 2 Start Address Low
System Memory Map 3 Start Address Low
System Memory Map 4 Start Address Low
Enable”) is set and the following conditions are true:
“System Memory Map 0-4 Start Address Low” on page
“System Memory Map 0-4 End Address
Bit 4
Start Address 19-12
57).
78) is equal to the upper PCI address.
RW:00000000
PCI-to-PC Card (PCMCIA) Controller — PD6729
Bit 3
Bit 2
“System Memory Map 0-4
Register Compatibility Type: 365
Low”).
Bit 1
Register Per: socket
65).
Bit 0
65