MT9074AL Zarlink Semiconductor, Inc., MT9074AL Datasheet - Page 50

• Manufacturer Part Number: MT9074AL
• Description: T1/E1/J1 Single Chip Transceiver
• Manufacturer: Zarlink Semiconductor, Inc.

MT9074
50
Bit
Bit
3
2
1
0
7
6
Table 33 - Interrupt Mask Word One (T1)
Table 34 - Interrupt Mask Word Two (T1)
PRBSIM
PDVIM
BPVIM
Name
CRCOM
- - -
FEOM
Name
(Page 1, Address 1CH
(Page 1, Address 1DH)
Bipolar
Mask.
interrupt is initiated whenever a
bipolar violation (excluding B8ZS
encoding) is encountered. If 1-
unmasked, 0 - masked.
Psuedo 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. 1 - unmasked, 0 -
masked.
Pulse
Interrupt
unmasked
triggered whenever a sequence
of excessive consecutive zeros
is received on the line, or the
incoming pulse density is less
than N ones in a time frame of
8(N+1) where N = 1 to 23. If 1 -
unmasked, 0 - masked.
Unused.
Framing Bit Error Counter
Overflow Interrupt Mask.
When unmasked an interrupt
is
framing
changes from FFH to 00H. If
1 - unmasked, 0 - masked.
CRC-6
Overflow Interrupt Mask.
When unmasked an interrupt
is
CRC-6 error counter changes
from FFH to 00H. If 1 -
unmasked, 0 - masked.
Functional Description
Functional Description
initiated
initiated
When
Density
Violation
bit
an
Error
Mask.
unmasked
whenever
whenever
error
interrupt
Violation
Interrupt
Counter
counter
When
the
the
an
is
Bit
5
4
3
2
1
0
Table 34 - Interrupt Mask Word Two (T1)
PRBSMFOM
MFOOFOM
COFAOM
PRBSOM
OOFOM
BPVOM
Name
(Page 1, Address 1DH)
Out
Overflow Interrupt Mask.
When unmasked an interrupt
is initiated whenever the out
of frame counter changes
state from changes from FFH
to 00H. If 1 - unmasked, 0 -
masked.
Change
Alignment
Overflow Interrupt Mask.
When unmasked an interrupt
is
change of frame alignment
counter changes from FFH to
00H. If 1 - unmasked, 0 -
masked.
Bipolar Violation Counter
Overflow Interrupt Mask.
When unmasked an interrupt
is
bipolar
changes from FFH to 00H. If
1- unmasked, 0 - masked.
Psuedo
Sequence Error Counter
Overflow Interrupt Mask.
When unmasked an interrupt
will be generated whenever
the
changes from FFH to 00H. If
1 - unmasked, 0 - masked.
Psuedo
Sequence
Counter Overflow Interrupt
Mask. When unmasked an
interrupt will be generated
whenever
counter
PRBS
overflows. FFH to 00H. If 1 -
unmasked, 0 - masked.
Multiframes Out Of Sync
Overflow Interrupt Mask.
When unmasked an interrupt
will be generated when the
multiframes out of frame
counter changes from FFH to
00H. If 1 - unmasked, 0 -
masked.
Functional Description
initiated
initiated
PRBS
Of
violation
attached
Frame
error
Random
Random
the
whenever
whenever
of
error
Data Sheet
Multiframe
multiframe
Counter
Counter
to
counter
counter
counter
Frame
the
the
the
Bit
Bit