Advance Information
MT9074
Bit Name
Functional Description
Bit
Name
Functional Description
7 - 0 PS7-0 This counter is incremented for each
PRBS error detected on any of the
receive channels connected to the
PRBS error detector.
7
D4YALML D4 Yellow Alarm Latch. This bit is
set if a D4 yellow alarm is detected
within a 600 millisecond integration
period. It is cleared after a read.
Table 56 - PRBS Error Counter
(Page 4, Address 10H) (T1)
6
5
D4Y48L D4
Yellow
Alarm
(48
milliseconds) Latch. This bit is
set if a D4 yellow alarm is detected
within a 48 millisecond integration
period. It is cleared after a read.
Bit
Name
Functional Description
SECYELL Secondary D4 Yellow Alarm
Latch. This bit is set if an alternate
D4 (S bit in 12 th frame) is
detected. It is cleared after a read.
7 - 0 PSM7-0 This counter is incremented for each
received CRC multiframe. It is
cleared when the PRBS Error
Counter is written to.
4
3
2
ESFYELL ESF Yellow Alarm Latch. This bit
is set upon receipt of a ESF yellow
alarm. It is cleared after a read.
Table 57 - CRC Multiframe Counter for PRBS
(Page 4, Address 11H) (T1)
BLUEL Blue Alarm Latch. This bit is set
upon receipt of a blue alarm. It is
cleared after a read.
PDVL
Pulse Density Violation Latch.
This bit is set upon receipt of a
pulse density violation. It is cleared
after a read.
1
0
LLEDL Line Loopback Enable Detect
Latch. This bit is set upon receipt
of a line loopback enable code. It is
cleared after a read.
LLDDL Line Loopback Disable Detect
Latch. This bit is set upon receipt
of a line loopback disable code. It
is cleared after a read.
Table 58 - Alarm Reporting Latch
(Page 4, Address 12H) (T1)
Bit
Name
Functional Description
7 - 0 FC7 - 0 Framing Bit Counter. This eight 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 Fs bits
may be monitored as well as Ft bits.
See - Section 15.5 Framing Bit
Counter. The count is only active if
the MT9074 is in synchronization.
Table 59 - Framing Bit Counter
(Page 4, Address 13H) (T1)
59
MITEL [ MITEL NETWORKS CORPORATION ]
