Proprietary TranSwitch Corporation Information for use Solely by its Customers
L3M
TXC-03452B
DATA SHEET
Interrupt Mask Bits
A 1 written to any of the bits in the interrupt mask (except HINT), and the occurrence of the corresponding
alarm, causes a software interrupt (SINT) to occur. If the hardware interrupt bit (HINT) is also written with a 1,
then a hardware interrupt also occurs.
Address
Bit
Symbol
Description
BA
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
DLOC
Drop Bus Loss Of Clock
Drop Bus Loss of J1
DLOJ1
BUSERR Bus Parity Error
E1AIS
LOP
E1 Byte AIS detected
Loss Of Pointer (TUG-3 operation)
Path AIS (TUG-3 operation)
PAIS
PSLERR Path Signal Label Error
C2EQ0
RDI
C2 Equal to 0 alarm (unequipped)
BB
BC
BD
Receive RDI (yellow) detected.
Transmit Line Loss Of Signal
L3LOS
L3LOC
TOVFL
L3AIS
Transmit Line Loss Of Clock
Transmit FIFO Error (underflowed or overflowed)
E3 Transmit Line AIS Detected
RAMLOC Loss Of Microprocessor RAM Clock (RAMCI signal, lead 130 or C7)
ALOC
ALOJ1
HINT
Add Bus Loss Of Clock
Add Bus Loss of J1
Hardware Interrupt Enable
FEBE9
NEW
FEBE Count of 9 indication
New Alarm - NDF and 3x new pointer events (TUG-3 operation)
TUG3NEW TUG-3 New Alarm - Three new pointer events
ROVFL
XSTAI
Receive FIFO Overflow/Underflow
SDH/SONET Network Alarm Indication
External STS-1 Alarm (ISTAT) signal detected as a 1 (if enabled)
External Path AIS (PAIS) signal detected as a 1 (if enabled)
Internal Analyzer bit error detected.
XISTAT
XPAIS
L3ERR
LOVFL
RFRST
TFRST
Leak FIFO Overflow/Underflow
Receive FIFO Reset Indication
Transmit FIFO Reset Indication
VCXOLOC VCXO Loss Of Clock
TPLOC
RPLOC
OOL
Transmit PLL loss of clock
Receive PLL loss of clock
Analyzer out of lock.
TXC-03452B-MB
Ed. 6, April 2001
- 79 of 96 -
ETC [ ETC ]
