PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
Register 424H, 464H, 4A4H: RTTB, TU3 or TU #1 in TUG2 #1 to TUG2 #7, TIU
Interrupt
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Unused
TIU7I
TIU6I
TIU5I
TIU4I
TIU3I
TIU2I
TIU1I
X
0
0
0
0
0
0
0
R
R
R
R
R
R
R
This register is used to identify and acknowledge trail trace identifier unstable
interrupts for the tributaries TU #1 in TUG2 #1 to TUG2 #7. It is also used to
identify and acknowledge TU3 trail trace identifier unstable interrupts.
TIU1I:
The TIU1I bit identifies the source of trail trace identifier unstable interrupts. In
TU3 mode, The TIU1I bit reports and acknowledges TIU interrupt of the TU3
trail trace identifier. Out of TU3 mode, TIU1I bit reports and acknowledges TIU
interrupt of TU #1 in TUG2 #1. Interrupts are generated upon change of
identifier unstable state. The TIU1I bit is set high when a trail trace identifier
unstable event and is cleared immediately following a read of this register,
which also acknowledges and clears the interrupt. the TIU1I bit remains valid
when interrupts are not enabled (TIUE set low) and may be polled to detect
trail trace identifier unstable events.
TIU2I-TIU7I:
The TIU2I to TIU7I bits identify the source of trail trace identifier unstable
interrupts. TIU2I to TIU7I bits report and acknowledge TIU interrupt of TU #1
in TUG2 #2 to TUG2 #7, respectively. Interrupts are generated upon change
of identifier unstable state. An TIUxI bit is set high when a trail trace identifier
unstable event on the corresponding tributary (TU #1 in TUG2 #x ) occurs and
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
313
PMC [ PMC-SIERRA, INC ]
