Preliminary Information
MT9076
Bit
Name
Functional Description
7
FERRI
Errored Framing Alignment Signal Interrupt. When unmasked this interrupt bit goes
high whenever an erroneous bit in frame alignment signal is detected (provided the
circuit is in terminal frame sync). Reading this register clears this bit.
6
5
4
3
CRCERRI CRC-4 Error Interrupt. When unmasked this interrupt bit goes high whenever a local
CRC-4 error occurs. Reading this register clears this bit.
EBITI
AIS16I
LCVI
Receive E-bit Error Interrupt. When unmasked this interrupt bit goes high upon
detection of a wrong E-bit in multiframe. Reading this register clears this bit.
Alarm Indication Signal Interrupt. When unmasked this interrupt bit goes high
whenever all ones in time slot 16 occur.Reading this register clears this bit.
Bipolar Violation Interrupt. When unmasked this interrupt bit goes high whenever a
line code violation (excluding HDB3 encoding) is encountered. Reading this register
clears this bit.
2
1
0
PRBSERRI Pseudo Random Bit Sequence Error Interrupt. When unmasked this interrupt bit
goes high upon detection of an error with a channel selected for PRBS testing. Reading
this register clears this bit.
AUXPI
Auxiliary Pattern Alarm Interrupt. When unmasked this interrupt bit goes high
whenever a sequence of 512 bit consecutive 101010. occur. Reading this register
clears this bit.
RAII
Remote alarm Indication Interrupt. When unmasked this interrupt bit goes high
whenever the bit 3 of non-frame alignment signal is high. Reading this register clears
this bit.
Table 145 - Interrupt Word One
(Page 4, Address 1CH) (E1)
121