mt9074ap1 Zarlink Semiconductor, mt9074ap1 Datasheet - Page 81

• Manufacturer Part Number: mt9074ap1
• Description: T1/e1/j1 Single Chip Transceiver With Wide Dynamic Range Liu
• Manufacturer: Zarlink Semiconductor

7 - 0
7 - 0
Bit
Bit
Bit
7
6
5
4
3
2
1
0
FC7 - 0
PSM7-0
Name
Name
D4YALML
SECYELL
ESFYELL
D4Y48L
BLUEL
LLEDL
LLDDL
Name
PDVL
Table 57 - CRC Multiframe Counter for PRBS
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.
This counter is incremented for each received CRC multiframe. It is cleared
when the PRBS Error Counter is written to.
Table 58 - Alarm Reporting Latch
Table 59 - Framing Bit Counter
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.
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.
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.
ESF Yellow Alarm Latch. This bit is set upon receipt of a ESF yellow
alarm. It is cleared after a read.
Blue Alarm Latch. This bit is set upon receipt of a blue alarm. It is
cleared after a read.
Pulse Density Violation Latch. This bit is set upon receipt of a pulse
density violation. It is cleared after a read.
Line Loopback Enable Detect Latch. This bit is set upon receipt of a
line loopback enable code. It is cleared after a read.
Line Loopback Disable Detect Latch. This bit is set upon receipt of a
line loopback disable code. It is cleared after a read.
(Page 4, Address 13H) (T1)
(Page 4, Address 11H) (T1)
(Page 4, Address 12H) (T1)
Zarlink Semiconductor Inc.
MT9074
81
Functional Description
Functional Description
Functional Description
Data Sheet