MT9074
Advance Information
Bit
Name
Functional Description
Bit Name
Functional Description
1
YIM
Remote Signalling Multiframe
Alarm Interrupt Mask. When
unmasked (YI=1), an interrupt is
initiated whenever a change of
2
PRBSIM PRBS Interrupt Mask. When
unmasked (PRBSI = 1), an interrupt
is initiated on
a
single PRBS
detection error. If 1 - unmasked, 0 -
masked.
state
of
remote
signalling
multiframe alarm signal is
received. If 1 - unmasked, 0 -
masked.
1
AUXPIM Auxiliary Pattern Interrupt Mask.
When unmasked (AUXPI = 1), an
interrupt is initiated when the AUXP
status bit of page 03H, address 15H
goes high. If 1 - unmasked, 0 -
masked.
0
SLPIM
SLIP Interrupt Mask. When
unmasked (SLPI=1), an interrupt
is initiated when a controlled
frame slip occurs. If
unmasked, 0 - masked.
1
-
0
RAIIM Remote Alarm Indication Interrupt
Mask. When unmasked (RAII = 1) a
received RAI will initiate an interrupt.
If 1 - unmasked, 0 - masked.
Table 90 - Interrupt Mask Word Zero (E1)
(Page 1, Address 1BH)
Table 91 - Interrupt Mask Word One (E1)
(Page 1, Address 1CH)
Bit Name
Functional Description
Bit
Name
Functional Description
7
6
5
FERIM Frame Error Interrupt Mask. When
unmasked (FERI = 1), an interrupt is
initiated when an error in the frame
7
FEOM
Frame Alignment Signal
Error
Interrupt
Counter
Mask.
Overflow
alignment signal occurs. If
unmasked, 0 - masked.
1
-
When
unmasked an interrupt is
initiated when the frame
alignment signal error counter
overflows. If 1 - unmasked, 0 -
masked.
CRCIM CRC-4 Error Interrupt Mask. When
unmasked an interrupt is initiated
when a local CRC-4 error occurs. 1 -
unmasked, 0 - masked. If 1 -
unmasked, 0 - masked.
6
5
CRCOIM
EBOIM
CRC-4
Error
Counter
Overflow Interrupt. When
unmasked an interrupt is
initiated when the CRC-4 error
EBIM Receive E-bit Interrupt Mask. When
unmasked an interrupt is initiated
when a receive E-bit indicates a
remote CRC-4 error. 1 - unmasked, 0
- masked. If 1 - unmasked, 0 -
masked.
counter overflows. If
unmasked, 0 - masked.
1
-
Receive
E-bit
Counter
Overflow Interrupt. When
unmasked an interrupt is
initiated when the E-bit error
4
3
AIS16IM Channel 16 Alarm Indication Signal
Interrupt Mask. When unmasked
(AIS16I = 1), a received AIS16 will
initiate an interrupt. If 1 - unmasked, 0
- masked.
counter overflows. If
unmasked, 0 - masked.
1
-
4
3
- - -
Unused.
BPVIM Bipolar Violation Interrupt Mask.
When unmasked an interrupt is
initiated when a bipolar violation error
occurs. 1 - unmasked, 0 - masked.
BPVCOM
Bipolar Violation Counter
Overflow Interrupt. When
unmasked (BPVO = 1), an
interrupt is initiated when the
bipolar violation error counter
changes form FFFFH to 0H. If
1 - unmasked, 0 - masked.
Table 91 - Interrupt Mask Word One (E1)
(Page 1, Address 1CH)
Table 92 - Interrupt Mask Word Two (E1)
(Page 1, Address 1DH)
76
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