MT9075B Mitel Networks Corporation, MT9075B Datasheet - Page 47

• Manufacturer Part Number: MT9075B
• Description: E1 Single Chip Transceiver
• Manufacturer: Mitel Networks Corporation

Preliminary Information
Bit
7
6
5
4
3
2
Table 46 - Alarm Status Word One
CRCS1 Receive CRC Error Status One. If
CRCS2 Receive CRC Error Status Two. If
AIS16S Alarm
RFAIL
Name
LOSS
(Page 03H, Address 19H)(continued)
AISS
one, the evaluation of the last
received submultiframe 1 resulted in
an
submultiframe 1 was error free.
Updated on a submultiframe 1
basis.
one, the evaluation of the last
received submultiframe 2 resulted in
an
submultiframe 2 was error free.
Updated on a submultiframe 2
basis.
Remote
Generator/Detector Failure. If one,
each of the previous five seconds
have an E-bit error count of greater
than 989, and for this same period
the receive RAI bit was zero (no
remote alarm), and for the same
period the SYNC bit was equal to
zero (basic frame alignment has
been maintained). If zero, indicates
normal operation.
Loss of Signal Status Indication.
If one, indicates the presence of a
loss of signal condition. If zero,
indicates normal operation. A loss
of signal condition occurs when 127
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 127 contiguous pulse
positions starting with a pulse.
Status. If one, indicates an all ones
alarm is being received in channel
16.
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
determined by the control bit ASEL
(page 01H, address 10H).
error.
error.
If
Functional Description
zero,
Indication
for
CRC-4
If
If
AIS
normal
zero,
zero,
detection
Signal
Multiframe
operation.
the
the
last
last
16
is
7 - 0
6-3
Bit
Bit
Bit
1
0
7
1
0
2
Table 47 - Changed S
S
RCRS
C8S
Name
Name
Name
a6
ID7-0
RAIS
CS
S
nibble
---
Table 46 - Alarm Status Word One
a5
a6
Table 48 - Identification Word
a6
(Page 03H, Address 1FH)
(Page 03H, Address 1AH)
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.
S
cleared once this register is read.
S
cleared once this register is read.
Unused
Eight Consecutive S
Upon
consecutive S
same pattern, this bit goes high. It is
cleared once this register is read.
Changed
detection of a change of state within
the received S
goes high. It is cleared once this
register is read.
Contains device code 10101010.
a5
a6
(Page 03H, Address 19H)
Nibble (latched by C8S
Bit (latched by C8S
Functional Description
Functional Description
Functional Description
detection
S
a6
a6
a6
Report Word
a6
MT9075B
nibble with the
nibbles, this bit
of
nibble.
a6
the
a6
nibbles.
a6
). It is
eighth
). It is
Upon
47