PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
Register A7H, C7H, E7H: VTPP, TU3 or TU #1 in TUG2 #1 to TUG2 #7, AIS
Interrupt
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Unused
AIS7I
AIS6I
AIS5I
AIS4I
AIS3I
AIS2I
AIS1I
X
0
0
0
0
0
0
0
R
R
R
R
R
R
R
This register is used to identify and acknowledge alarm indication signal
interrupts for the tributaries TU #1 in TUG2 #1 to TUG2 #7. It is also used to
identify and acknowledge TU3 AIS interrupts.
AIS1I:
The AIS1I bit identifies the source of tributary path AIS interrupts. In TU3
mode, the AIS1I bit reports and acknowledges AIS interrupt of the TU3
stream. Out of TU3 mode, the AIS1I bit reports and acknowledges AIS
interrupt of TU #1 in TUG2 #1. Interrupts are generated upon detection and
removal of tributary path AIS alarm. AIS1I is set high when the corresponding
tributary path AIS event occurs and are cleared immediately following a read
of this register, which also acknowledges and clears the interrupt. AIS1I
remains valid when interrupts are not enabled (ALARME set low) and may be
polled to detect tributary path AIS events.
AIS2I-AIS7I:
The AIS2I to AIS7I bits identify the source of tributary path AIS interrupts. In
TU3 mode, these bits are unused and will return a logic 0 when read. Out of
TU3 mode, the AIS2I to AIS7I bits report and acknowledge AIS interrupt of
TU #1 in TUG2 #2 to TUG2 #7, respectively. Interrupts are generated upon
detection and removal of tributary path AIS. An AISxI bit is set high when a
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191
PMC [ PMC-SIERRA, INC ]
