mt9074ap1 Zarlink Semiconductor, mt9074ap1 Datasheet - Page 107

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

Bit
4
3
2
1
0
AIS16S
RCRS
Name
LOSS
RAIS
AISS
(Page 3, Address 11H) (continued) (E1)
Table 104 - Alarm Status Word 1
Loss of Signal Status. If one, indicates the presence of a loss of signal
condition. If zero, indicates normal operation. A loss of signal condition
occurs when 192 consecutive bit periods are zero. A loss of signal
condition terminates when an average ones density of at least 12.5% has
been received over a period of 192 contiguous pulse positions starting
with a pulse.
Alarm Indication Signal 16 Status. If one, indicates an all ones alarm is
being received in channel 16. If zero, normal operation. Updated on a
frame basis.
Alarm Indication Status Signal. If one, indicates that a valid AIS or
all ones signal is being received. If zero, indicates that a valid AIS
signal is not being received. The criteria for AIS detection is
determined by the control bit ASEL.
Remote Alarm Indication Status. If one, there is currently a remote
alarm condition (i.e., received A bit is one). If zero, normal operation.
Updated on a non-frame alignment frame basis.
RAI and Continuous CRC Error Status. If one, there is currently an
RAI and continuous CRC error condition. If zero, normal operation.
Updated on a multiframe basis.
Zarlink Semiconductor Inc.
MT9074
107
Functional Description
Data Sheet