l-fw322-06-db ETC-unknow, l-fw322-06-db Datasheet - Page 30

• Manufacturer Part Number: l-fw322-06-db
• Description: Phy/link Open Host Controller Interface
• Manufacturer: ETC-unknow

FW322 06 1394a
PCI PHY/Link Open Host Controller Interface
Internal Registers
CardBus Base Address Register
The CardBus Base Address register is programmed with a base address referencing the memory-mapped
Function Event registers. When BIOS writes all 1s to this register, the value read back is FFFF FF00h, indicating
that 256 bytes of memory address space are required for the CardBus Function Event registers.
Offset:
Default:
Type:
Reference:
Table 10. CardBus Base Address Register Description
CIS Pointer
The CIS Pointer indicates the starting point of the card information structure (CIS). The CIS may begin in any one
of the following spaces:
The FW322 will only support the first, configuration space starting at location 80h.
Offset:
Default (CardBusN = 1):
Default (CardBusN = 0):
Type:
Reference:
30
30
Configuration space: must begin in device-dependent space at or after location 40h.
Memory space: may be in any of the memory spaces.
Expansion ROM space: may be in any of the images.
31:8
7:4
2:1
Bit
3
0
CB_MEMTYPE
CBREG_PTR
PC Card Standard Rev 8, volume 2, Section 5.4.2.1.7
14h
0000 0000h
Read/write
Field Name
CB_MEM
CB_SZ
CB_PF
(continued)
28h
0000 0000h
0000 0080h
Read only
PCI Card Standard, Rev. 8, volume 2, Section 5.4.2.1.8
Type
RW
R
R
R
R
CardBus Register Pointer. Specifies the upper 24 bits of the 32-bit
CardBus base address.
CardBus Register Size. This field returns 0s when read, indicating
that the CardBus registers require a 256-byte region of memory.
CardBus Register Prefetch. This bit returns 0 when read, indicating
that the CardBus Function Event registers do not have support for
prefetchable memory.
CardBus Memory Type. This field returns 0s when read, indicating
that the CardBus Base Address register is 32 bits wide and mapping
can be done anywhere in the 32-bit memory space.
CardBus Memory Indicator. This bit returns 0 when read, indicating
that the CardBus registers are mapped into system memory space.
Description
Data Sheet, Rev. 1
December 2005
Agere Systems Inc.