MT9074
Advance Information
Bit
Name
Functional Description
Bit
Name
Functional Description
7 - 4 OOF3 - 0 Out Of Frame Counter. This four
bit counter is incremented with
every loss of receive frame
synchronization.
7 - 0 BPV7 - 0 Least Significant Bits of the BPV
Counter. The least significant eight
bits of a 16 bit counter that is
incremented once for every bipolar
violation error received.
3 - 0 COFA3 - 0 Change of Frame Alignment
Counter. This four bit counter is
Table 63 - Least Significant Bits of the BPV
Counter
incremented
if
a
(Page 4, Address 17H) (T1)
resynchronization is done which
results in a shift in the frame
alignment position.
Bit
Name
Functional Description
Table 60 - Out Of Frame / Change of Frame
Alignment Counter
7 - 0 CC15 - 8 CRC-6 Error Counter Bits Fifteen
to Eight. These are the most
significant eight bits of the CRC-6
error counter.
(Page 4, Address 14H) (T1)
Table 64 - CRC-6 Error Counter
(Page 4, Address 18H) (T1)
Bit Name
Functional Description
Out
7 - 0 MFOO Multiframes
of
Synchronization Counter. This
eight bit counter will be incremented
once for every multiframe (1.5
F7 - 0
Bit
Name
Functional Description
milliseconds in D4 mode,
3
milliseconds in ESF mode) in which
basic frame synchronization is lost.
7 - 0 CC7 - 0 CRC-6 Error Counter Bits Seven
to Zero. These are the least
significant eight bits of the CRC-6
error counter.
Table 61 - Multiframes Out of Sync Counter
(Page 4, Address 15H) (T1)
Table 65 - CRC-6 Error Counter
(Page 4, Address 19H) (T1)
Bit
Name
Functional Description
7 - 0 BPV15 - 8 Most Significant Bits of the BPV
Counter. The most significant
eight bits of a 16 bit counter that is
incremented once for every bipolar
violation error received.
Table 62 - Most Significant Bits of the BPV
Counter
(Page 4, Address 16H) (T1)
60
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