MT9076
Preliminary Information
Bit
Name
Functional Description
7
JACS
JACF
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.
6
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.
5
4
JAE
Jitter Attenuator FIFO Empty. If one it indicates that the JA FIFO is empty.
JAF4
Jitter Attenuator FIFO with 4 Full Locations. If one it indicates that the JA FIFO has at
least 4 full locations.
3
2
JAFC
JAE4
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.
1
0
JAF
- - -
Jitter Attenuator FIFO Full. If one it indicates that the JA FIFO is full.
Unused.
Table 125 - Jitter Attenuator Status Word
(Page 3, Address 17H) (E1)
Bit
Name
Functional Description
7
RIU1
Receive International Use 1. This bit is received on the PCM 30 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.
6
5
RNFAB Receive Non-frame Alignment Bit. This bit is received on the PCM 30 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.
RALM
Receive Alarm. This bit is received on the PCM 30 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 PCM 30 link (1 - alarm, 0 - normal).
4-0
RNU4-8 Receive National Use Four to Eight. These bits are received on the PCM 30 2048 kbit/sec.
link in bit positions four to eight (the Sa bits) of the non-frame alignment signal.
Table 126 - Receive Non-Frame Alignment Signal
(Page 3, Address 18H) (E1)
114