mt9074ap1 Zarlink Semiconductor, mt9074ap1 Datasheet - Page 111

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

4-0
Bit
Bit
7
6
5
7
6
5
4
3
2
1
0
RNU4-8
RNFAB
RALM
Name
RIU1
Name
JACS
JACF
JAFC
JAE4
JAF4
JAE
JAF
- - -
Table 111 - Receive Non-Frame Alignment Signal
Table 110 - itter Attenuator Status Word
Receive International Use 1. This bit is received on the PCM30
2048 kbit/sec. link in bit position one of the non-frame alignment signal. It is
used for CRC-4 multiframe alignment or international use.
Receive Non-frame Alignment Bit. This bit is received on the PCM30
2048 kbit/sec. link in bit position two of the non-frame alignment signal. This
bit should be one in order to differentiate between frame alignment frames
and non-frame alignment frames.
Receive Alarm. This bit is received on the PCM30 2048 kbit/sec. link in bit
position three (the A bit) of the non-frame alignment signal. It is used as a
remote alarm indication (RAI) from the far end of the PCM30 link (1 - alarm,
0 - normal).
Receive National Use Four to Eight. These bits are received on the
PCM30 2048 kbit/sec. link in bit positions four to eight (the Sa bits) of the
non-frame alignment signal.
Jitter Attenuated Clock Slow. If one it indicates that the dejittered clock
period is increased by 1/16 UI. If zero the clock is at normal speed.
Jitter Attenuated Clock Fast. If one it indicates that the dejittered clock
period is decreased by 1/16 UI. If zero the clock is at normal speed.
Jitter Attenuator FIFO Empty. If one it indicates that the JA FIFO is empty.
Jitter Attenuator FIFO with 4 Full Locations. If one it indicates that the JA
FIFO has at least 4 full locations.
Jitter Attenuator Center Full. If one it indicates that the JA FIFO is at least
half full.
Jitter Attenuator FIFO with 4 Empty Locations. If one it indicates that the
JA FIFO has at most 4 empty locations.
Jitter Attenuator FIFO Full. If one it indicates that the JA FIFO is full.
Unused.
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Zarlink Semiconductor Inc.
MT9074
111
Functional Description
Functional Description
Data Sheet