Datasheet

1394 OHCI Memory-Mapped Register Space
158
March 5 2007 − June 2011SCPS154C
8.38 Physical Request Filter Low Register
The physical request filter low set/clear register enables physical receive requests on a per-node basis, and
handles the lower node IDs. When a packet is destined for the physical request context, and the node ID has
been compared against the asynchronous request filter registers, then the node ID comparison is done again
with this register. If the bit corresponding to the node ID is not set to 1b in this register, then the request is
handled by the asynchronous request context instead of the physical request context. See Table 8−30 for a
complete description of the register contents.
OHCI register offset: 118h set register
11Ch clear register
Register type: Read/Set/Clear
Default value: 0000 0000h
BIT NUMBER 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
RESET STATE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
BIT NUMBER 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
RESET STATE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Table 8−30. Physical Request Filter Low Register Description
BIT FIELD NAME TYPE DESCRIPTION
31 physReqResource31 RSC If bit 31 is set to 1b for local bus node number 31, then physical requests received by the controller
from that node are handled through the physical request context.
30 physReqResource30 RSC If bit 30 is set to 1b for local bus node number 30, then physical requests received by the controller
from that node are handled through the physical request context.
29−2 physReqResourcen RSC Bits 29 through 2 (physReqResourcen, where n = 29, 28, 27, …, 2) follow the same pattern as
bits 31 and 30.
1 physReqResource1 RSC If bit 1 is set to 1b for local bus node number 1, then physical requests received by the controller
from that node are handled through the physical request context.
0 physReqResource0 RSC If bit 0 is set to 1b for local bus node number 0, then physical requests received by the controller
from that node are handled through the physical request context.
8.39 Physical Upper Bound Register (Optional Register)
The physical upper bound register is an optional register and is not implemented. This register returns
0000 0000h when read.
OHCI register offset: 120h
Register type: Read-only
Default value: 0000 0000h
BIT NUMBER 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
RESET STATE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
BIT NUMBER 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
RESET STATE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Not Recommended for New Designs