1394 OHCI Memory-Mapped Register Space
156
March 5 2007 June 2011
SCPS154C
8.37 Physical Request Filter High Register
The physical request filter high set/clear register enables physical receive requests on a per-node basis, and
handles the upper node IDs. When a packet is destined for the physical request context, and the node ID has
been compared against the ARRQ registers, then the 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 ARRQ context
instead of the physical request context. The node ID comparison is done if the source node is on the same
bus as the controller. Nonlocal bus-sourced packets are not acknowledged unless bit 31 in this register is set
to 1b. See
Table 829 for a complete description of the register contents.
OHCI register offset:
110h
set register
114h
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
BIT NUMBER
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
RESET STATE
0
Table 829. Physical Request Filter High Register Description
BIT
FIELD NAME
TYPE
DESCRIPTION
31
physReqAllBusses
RSC
If bit 31 is set to 1b, then all asynchronous requests received by the controller from nonlocal bus
nodes are accepted. Bit 31 is not cleared by a PRST.
30
physReqResource62
RSC
If bit 30 is set to 1b for local bus node number 62, then physical requests received by the
controller from that node are handled through the physical request context.
29
physReqResource61
RSC
If bit 29 is set to 1b for local bus node number 61, then physical requests received by the
controller from that node are handled through the physical request context.
28
physReqResource60
RSC
If bit 28 is set to 1b for local bus node number 60, then physical requests received by the
controller from that node are handled through the physical request context.
27
physReqResource59
RSC
If bit 27 is set to 1b for local bus node number 59, then physical requests received by the
controller from that node are handled through the physical request context.
26
physReqResource58
RSC
If bit 26 is set to 1b for local bus node number 58, then physical requests received by the
controller from that node are handled through the physical request context.
25
physReqResource57
RSC
If bit 25 is set to 1b for local bus node number 57, then physical requests received by the
controller from that node are handled through the physical request context.
24
physReqResource56
RSC
If bit 24 is set to 1b for local bus node number 56, then physical requests received by the
controller from that node are handled through the physical request context.
23
physReqResource55
RSC
If bit 23 is set to 1b for local bus node number 55, then physical requests received by the
controller from that node are handled through the physical request context.
22
physReqResource54
RSC
If bit 22 is set to 1b for local bus node number 54, then physical requests received by the
controller from that node are handled through the physical request context.
21
physReqResource53
RSC
If bit 21 is set to 1b for local bus node number 53, then physical requests received by the
controller from that node are handled through the physical request context.
20
physReqResource52
RSC
If bit 20 is set to 1b for local bus node number 52, then physical requests received by the
controller from that node are handled through the physical request context.
19
physReqResource51
RSC
If bit 19 is set to 1b for local bus node number 51, then physical requests received by the
controller from that node are handled through the physical request context.
18
physReqResource50
RSC
If bit 18 is set to 1b for local bus node number 50, then physical requests received by the
controller from that node are handled through the physical request context.
17
physReqResource49
RSC
If bit 17 is set to 1b for local bus node number 49, then physical requests received by the
controller from that node are handled through the physical request context.
Not Recommended for New Designs