Advance Information
MT9074
Bit
Name
Functional Description
Bit Name
Functional Description
2
PRBSOM
PRBS Counter Overflow
Interrupt. When unmasked
(PRBSO = 1), an interrupt is
initiated on overflow of PRBS
counter (page 04H, address
10H) from FFH to 0H. If 1 -
unmasked, 0 - masked.
0
SIGIM Signalling (CAS) Interrupt Mask.
When unmasked and any of the
receive ABCD bits of any channel
changes state an interrupt is initiated.
If 1 - unmasked, 0 - masked.
Table 93 - Interrupt Mask Word Three (E1)
(Page 1, Address 1EH)
1
PRBSMFO PRBS MultiFrame Counter
M
Overflow Interrupt When
unmasked an interrupt will be
generated
whenever
the
multiframe counter attached
to the PRBS error counter
overflows. If 1 - unmasked, 0 -
masked.
0
- - -
Unused.
Table 92 - Interrupt Mask Word Two (E1)
(Page 1, Address 1DH)
Bit Name
Functional Description
Unused
7-5
4
- - -
JAIM Jitter Attenuation Interrupt Mask.
When unmasked, an interrupt will be
initiated when the jitter attenuator
FIFO comes within four bytes of an
overflow or underflow condition. If 1 -
unmasked, 0 - masked.
3
2
1
1SECIM One Second Status Interrupt Mask.
When unmasked (1SECI = 1), an
interrupt is initiated when the 1SEC
status bit changes from zero to one. If
1 - unmasked, 0 - masked.
5SECIM Five Second Status Interrupt Mask.
When unmasked (5SECI = 1), an
interrupt is initiated when the 5SECI
status bit changes from zero to one. If
1 - unmasked, 0 - masked.
RCRIM RCRI
Interrupt
Mask.
When
unmasked (RCRI=1), an interrupt is
initiated when RCR (remote alarm &
CRC-4 error) status bit changes from
zero to one. If 1 - unmasked, 0 -
masked.
Table 93 - Interrupt Mask Word Three (E1)
(Page 1, Address 1EH)
77
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