Advance Information
MT9074
Bit
Name
Functional Description
Bit
Name
Functional Description
Errored Framing Alignment
3
LOSI
Loss of Signal Interrupt.
When unmasked this interrupt
bit goes high whenever a loss of
signal (either analog - received
signal 20 or 40 dB below
7
FERRI
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.
nominal or digital
-
192
consecutive
0’s
received)
condition exists.
2
CEFI
Consecutively Errored Frame
Alignment Interrupt. When
unmasked this interrupt bit goes
high whenever the error in last
two frame alignment signals
occurs. 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
BPVI
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.
1
0
YI
Receive Y-bit Interrupt. When
unmasked this interrupt goes
high whenever a change of
status loss of multiframe
alignment occurs. 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.
RxSLPI
Receive SLIP Interrupt. When
unmasked this interrupt bit goes
high whenever
a
controlled
frame slip occurs in the receive
elastic buffer. Reading this
register clears this bit.
Bipolar Violation Interrupt. When
unmasked this interrupt bit goes
high whenever a bipolar violation
(excluding HDB3 encoding) is
Table 126 - Interrupt Word Zero
(Page 4, Address 1BH) (E1)
encountered.
Reading
this
register clears this bit.
2
1
0
PRBSERR Pseudo Random Bit Sequence
I
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 127 - Interrupt Word One
(Page 4, Address 1CH) (E1)
91
MITEL [ MITEL NETWORKS CORPORATION ]
