TC1796
System Units (Vol. 1 of 2)
Peripheral Control Processor (PCP)
User’s Manual 11-69 V2.0, 2007-07
PCP, V2.0
11.10.11 PCP Service Request Control Registers, PCP_SRC[8:4]
Service request nodes programmable for interrupt bus 0 (CPU interrupt arbitration bus)
or 1 (PCP interrupt arbitration bus).
PCP_SRCx (x = 4-8)
PCP Service Request Control Register x
(FC
H
-x*4
H
) Reset Value: 0000 1000
H
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
0
r
1514131211109876543210
0SRR
SRE
= 1
TOS 0 SRPN
rrhrrw r rh
Field Bits Type Description
SRPN [7:0] rh PCP Node x Service Request Priority Number
This number is automatically set by the PCP if it
needs to place a service request on interrupt bus 0
(CPU interrupt arbitration bus) or 1 (PCP interrupt
arbitration bus). Default after reset is 00
H
.
TOS [11:10] rw PCP Node x Type-of-Service State/Control
TOS value depends on the interrupt mapping that
has been selected (see Page 11-119). This bit field
must be written at PCP configuration time and
should not subsequently modified while the PCP is
operating.
SRE 12 r PCP Node x Service Request Enable
Always read as 1 (enabled).
SRR 13 rh PCP Node x Service Request Flag
0
B
No service requested (default).
1
B
Valid active service requested.
0 [9:8],
[15:14],
[31:16]
r Reserved
Read as 0; should be written with 0.
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