MT9072 Zarlink Semiconductor, Inc., MT9072 Datasheet - Page 125

• Manufacturer Part Number: MT9072
• Description: Octal T1-E1-J1 Framer
• Manufacturer: Zarlink Semiconductor, Inc.

Advance Information
15-0
15-8
15-8
15-0
15-0
15-0
Bit
7-0
7-0
Bit
Bit
Bit
Bit
Bit
COFA7 - 0 Change of Frame Alignment Counter. This eight bit counter is incremented if a
CC15-0
OOF7 - 0 Out Of Frame Counter. This eight bit counter is incremented with every loss of receive
MFOOF15-0
BPV15-0
Name
PSM7-0
FC15 - 0
Name
Name
PS7-0
Name
Table 85 - PRBS Error Counter and CRC Multiframe Counter for PRBS(Y15) (T1)
Name
Name
(1)
CRC-6 Error Counter Bits 15 to Zero. These are the 16 bits of the CRC-6 error counter. This
is only relevant in the ESF Mode. This counter increments for every CRC-6 error.
Table 90 - Out of Frame and Change of Frame Counters(Y1A) (T1)
frame synchronization. Hence if you loss sync, gain sync and loss it again the counter will
have a value of 2.
resynchronization is done which results in a shift in the frame alignment position.
PRBS Multiframe Counter.This counter is incremented for each received CRC multiframe.
It is cleared when the PRBS Error Counter is written to.
PRBS Error Counter.This counter is incremented for each PRBS error detected on any of
the receive channels connected to the PRBS error detector.
BPV Counter. 16 bit counter that is incremented for every bipolar violation error received.
Framing Bit Error Counter. This 16 bit counter will be incremented for each error in the
received framing pattern. In ESF mode the ESF framing bits are monitored. In D4 mode the
counter reflects the combination of Ft and Fs errors. The count is only active if the Framer
is in synchronization.
Multiframes Out of Synchronization Counter. This 16 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. This counter presets to one upon reset. If
terminal frame synchronization is neverobtained, the MFOOF counter will keep
incrementing every 1.5 or 3 msec (ESF Mode)
Table 86 - Multiframe Out of Frame Counter(Y16) (T1)
Table 87 - Framing Bit Error Counter(Y17) (T1)
Table 88 - Bipolar Violation Counter(Y18) (T1)
Table 89 - CRC-6 Error Counter(Y19) (T1)
Functional Description
Functional Description
Functional Description
Functional Description
Functional Description
Functional Description
MT9072
125