PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
Register 0BH: STP RTOP and RTTB Interrupt Status
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Unused
Unused
RTTB3I
RTTB2I
RTTB1I
RTOP3I
RTOP2I
RTOP1I
X
X
0
0
0
0
0
0
R
R
R
R
R
R
This register provides interrupt status of the three tributary path overhead
processor and of the three tributary trace buffers in the STP.
RTOP1I:
RTOP1I identifies tributary path overhead processor #1 as the source of a
pending interrupt. It is necessary to read the various interrupt status registers
in tributary path overhead processor #1 to determine the event causing the
interrupt and to clear the interrupt. Interrupts disabled at tributary path
overhead processor #1 will not be reported by the RTOP1I bit.
RTOP2I:
RTOP2I identifies tributary path overhead processor #2 as the source of a
pending interrupt. It is necessary to read the various interrupt status registers
in tributary path overhead processor #2 to determine the event causing the
interrupt and to clear the interrupt. Interrupts disabled at tributary path
overhead processor #2 will not be reported by the RTOP2I bit.
RTOP3I:
RTOP1I identifies tributary path overhead processor #3 as the source of a
pending interrupt. It is necessary to read the various interrupt status registers
in tributary path overhead processor #3 to determine the event causing the
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142
PMC [ PMC-SIERRA, INC ]
