TC1796
System Units (Vol. 1 of 2)
Peripheral Control Processor (PCP)
User’s Manual 11-63 V2.0, 2007-07
PCP, V2.0
11.10.6 PCP Interrupt Threshold Register, PCP_ITR
PCP_ITR
PCP Interrupt Threshold Control Register
(24
H
) Reset Value: 0000 0000
H
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
0ITL
rrw
1514131211109876543210
0ITP
rrw
Field Bits Type Description
ITP [7:0] rw PCP Interrupt Threshold Service Request
Priority Number
This field contains the interrupt priority that is to be
posted to the interrupt queue associated with
interrupt bus 0 when the threshold condition is
reached (setting this value to 0 or disables the
threshold detection mechanism).
ITL [19:16] rw Interrupt Threshold Level
This bit field specifies the number of active interrupt
entries at which an warning interrupt should be
issued to the interrupt queue associated with
interrupt bus 0 (i.e. when the number of active port 0
interrupt requests stored in all SRCx registers
reaches this value then an interrupt is posted to
port 0 with the priority programmed into the ITP
field). When ITL is programmed to 0 or is ≥ the
number of SRCx registers that can contain port 0
interrupt requests, the threshold warning mechanism
is disabled).
0 [15:8],
[31:20]
r Reserved
Read as 0; should be written with 0.
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