Preliminary Information
MT9076
Bit
Name
Functional Description
7
TFSYNIM Terminal Frame Synchronization Interrupt Mask. When unmasked an interrupt is initiated
whenever a change of state of loss of terminal frame synchronization condition exists. If 1 -
unmasked, 0 - masked.
6
5
MFSYNIM Multiframe Synchronization Interrupt Mask. When unmasked an interrupt is initiated
whenever a change of state of loss of multiframe synchronization condition exist. If 1 -
unmasked, 0 - masked
BIOMTIM Bit Oriented Message Transition Interrupt Mask. When unmasked an interrupt is initiated
whenever a new BIOM arrives or if the current BIOM stops transmission. If 1 - unmasked, 0 -
masked.
4
3
2
1
0
AISIM
Alarm Indication Signal Interrupt Mask. When unmasked a change of state of received all
ones condition will initiate an interrupt. If 1 - unmasked, 0 - masked.
LOSIM Loss of Signal Interrupt Mask. When unmasked an interrupt is initiated whenever a change of
state of a loss of signal condition exists. If 1 - unmasked, 0 - masked.
SEFIM
Severely Errored Frame Interrupt Mask. When unmasked an interrupt is initiated when a
sequence of 2 framing errors out of 6 occurs. If 1 - unmasked, 0 - masked.
TxSLPIM Transmit SLIP Interrupt Mask. When unmasked an interrupt is initiated whenever a controlled
frame slip occurs in the transmit elastic buffer. If 1 - unmasked, 0 - masked.
RxSLPIM Receive SLIP Interrupt Mask. When unmasked an interrupt is initiated whenever a controlled
frame slip occurs in the receive elastic buffer. If 1 - unmasked, 0 - masked.
Table 31 - Interrupt Mask Word Zero (T1)
(Page 1, Address 1BH)
Bit Name
Functional Description
7
FEIM Framing Bit Error Interrupt Mask. When unmasked an interrupt is initiated whenever an
erroneous framing bit is detected (provided the circuit is in terminal frame sync). If 1 - unmasked,
0 - masked.
6
5
4
3
CRCIM CRC-6 Error Interrupt Mask. When unmasked an interrupt is initiated whenever a local CRC-6
error occurs. If 1 - unmasked, 0 - masked.
YELIM Yellow Alarm Interrupt Mask. When unmasked detection of a yellow alarm triggers an interrupt.
If 1 - unmasked, 0 - masked.
COFAIM Change of Frame Alignment Interrupt Mask. When unmasked an interrupt is initiated whenever
a change of frame alignment occurs after a reframe. If 1 - unmasked, 0 - masked.
LCVIM Line Code Violation Interrupt Mask. When unmasked an interrupt is initiated whenever a line
code violation (excluding B8ZS bipolar violations encoding) is encountered. If 1- unmasked, 0 -
masked.
2
PRBSIM Pseudo Random Bit Sequence Error Interrupt Mask. When unmasked an interrupt will be
generated upon detection of an error with a channel selected for PRBS testing. If 1 - unmasked, 0
- masked.
1
0
PDVIM Pulse Density Violation Interrupt Mask. When unmasked an interrupt is triggered whenever a
sequence excess consecutive zeros is received on the line. If 1 - unmasked, 0 - masked.
- - -
Unused.
Table 32 - Interrupt Mask Word One (T1)
(Page 1, Address 1CH)
65
MITEL [ MITEL NETWORKS CORPORATION ]
