L-FW323-06-DB AGERE [Agere Systems], L-FW323-06-DB Datasheet - Page 66
L-FW323-06-DB
Manufacturer Part Number
L-FW323-06-DB
Description
PCI PHY/Link Open Host Controller Interface
Manufacturer
AGERE [Agere Systems]
Datasheet
1.L-FW323-06-DB.pdf
(92 pages)
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FW323 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 FW323 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
Type
RWU
descriptor block.
Indicates the number of contiguous descriptors at the address pointed
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.
Contains the upper 28 bits of the address of a 16-byte aligned
Description
Data Sheet, Rev. 1
December 2005
Agere Systems Inc.
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