Datasheet
Processor Integrated I/O (IIO) Configuration Registers
170 Datasheet, Volume 2
3.3.3.21 CIPSTS—Coherent Interface Protocol Status Register
3.3.3.22 CIPDCASAD—Coherent Interface Protocol DCA Source Address
Decode Register
CIPSTS
Bus: 0 Device: 5 Function: 0 Offset: 144
Bit Attr
Reset
Value
Description
31:3 RV 0h Reserved
2RO1b
RRB non-phold_arb Empty
This indicates that there are no pending requests in the RRB with the exception of
ProcLock/Unlock* messages to the lock arbiter.
0 = Pending RRB requests
1 = RRB Empty except for any pending Proclock*/Unlock
This is a live bit and hence can toggle clock by clock. This is provided mostly as a
debug visibility feature.
1RO1b
RRB Empty
This indicates that there are no pending requests in the RRB.
0 = Pending RRB requests
1 = RRB Empty
This is a live bit and hence can toggle clock by clock. This is provided mostly as a
debug visibility feature.
0RO0b
Flush Currently Pending Writes from Write Cache Status
This bit gets cleared whenever bit 31 in CPICTRL is written to 1 by software and
gets set by hardware when the pending writes in the Write Cache (at the time bit
31 in CIPCTRL is written to 1 by software) complete; that is, the Write Cache/RRB
entry is deallocated for all those writes.
CIPDCASAD
Bus: 0 Device: 5 Function: 0 Offset: 148
Bit Attr
Reset
Value
Description
31:29 RW 000b
DCA Lookup Table Entry 7
For a TPH/DCA request, this field specifies the target NodeID[2:0] when the
inverted Tag[2:0] is 7.
28:26 RW 000b
DCA Lookup Table Entry 6
For a TPH/DCA request, this field specifies the target NodeID[2:0] when the
inverted Tag[2:0] is 6.
25:23 RW 000b
DCA Lookup Table Entry 5
For a TPH/DCA request, this field specifies the target NodeID[2:0] when the
inverted Tag[2:0] is 5.
22:20 RW 000b
DCA Lookup Table Entry 4
For a TPH/DCA request, this field specifies the target NodeID[2:0] when the
inverted Tag[2:0] is 4.
19:17 RW 000b
DCA Lookup Table Entry 3
For a TPH/DCA request, this field specifies the target NodeID[2:0] when the
inverted Tag[2:0] is 3.
16:14 RW 000b
DCA Lookup Table Entry 2
For a TPH/DCA request, this field specifies the target NodeID[2:0] when the
inverted Tag[2:0] is 2.
13:11 RW 000b
DCA Lookup Table Entry 1
For a TPH/DCA request, this field specifies the target NodeID[2:0] when the
inverted Tag[2:0] is 1.