MT9076
Preliminary Information
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.
3 - 0 COFA3 - 0 Change of Frame Alignment Counter. This four bit counter is incremented if a
resynchronization is done which results in a shift in the frame alignment position.
Table 68 - Out Of Frame / Change of Frame Alignment Counter
(Page 4, Address 14H) (T1)
Bit
Name
Functional Description
7 - 0 MFOOF7 - 0 Multiframes Out of Synchronization Counter. This eight bit counter will be incremented
once for every multiframe (1.5 milliseconds in D4 mode, 3 milliseconds in ESF mode) in
which basic frame synchronization is lost.
Table 69 - Multiframes Out of Sync Counter
(Page 4, Address 15H) (T1)
Bit
Name
Functional Description
7 - 0 LCV15 - 8 Most Significant Bits of the LCV Counter. The most significant eight bits of a 16 bit
counter that is incremented once for every line code violation error received.
A line code violation is defined as a bipolar violation that is not a part of B8ZS encoding
when the control bit EXZ is set low. A line code violation includes both bipolar violations and
excess zeros when EXZ is set high.
Table 70 - Most Significant Bits of the LCV Counter
(Page 4, Address 16H) (T1)
Bit
Name
Functional Description
7 - 0
LCV7 - 0 Least Significant Bits of the LCV Counter. The least significant eight bits of a 16 bit
counter that is incremented once for every line code violation error received.
A line code violation is defined as a bipolar violation that is not a part of B8ZS encoding
when the control bit EXZ is set low. A line code violation includes both bipolar violations and
excess zeros when EXZ is set high.
Table 71 - Least Significant Bits of the LCV Counter
(Page 4, Address 17H) (T1)
Bit
Name
Functional Description
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.
Table 72 - CRC-6 Error Counter
(Page 4, Address 18H) (T1)
Bit
Name
Functional Description
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 73 - CRC-6 Error Counter
(Page 4, Address 19H) (T1)
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