l-fw322-06-db ETC-unknow, l-fw322-06-db Datasheet - Page 66

• 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
Asynchronous Context Command Pointer Register
The Asynchronous Context Command Pointer register contains a pointer to the address of the first descriptor block
that the FW322 accesses when software enables the context by setting the Asynchronous Context Control register
bit 15 (run).
Offset:
Default:
Reference:
Table 55. Asynchronous Context Command Pointer Register Description
66
66
31:4
Bit
3:0
descriptorAddress
Field Name
18Ch (ATRQ)
1ACh (ATRS)
1CCh (ARRQ)
1ECh (ARRS)
XXXX XXXXh
1394 Open Host Controller Specification, Rev. 1.1, Sections 3.1.2, 7.2.1, 8.3.1
Z
(continued)
RWU
RWU
Type
Contains the upper 28 bits of the address of a 16-byte aligned
descriptor block.
to by the descriptor address. If Z is 0, then it indicates that the descrip-
torAddress field (bits 31:4) is not valid. Valid values for z are context
specific. Refer to the OHCI specification for more details.
Indicates the number of contiguous descriptors at the address pointed
Description
Data Sheet, Rev. 1
December 2005
Agere Systems Inc.