ISO-CMOS MT8979
7
6
5
4
3
2
1
0
TFSYN
MFSYN
ERR
SLIP
RXAIS
TXTS16AIS
XS
UNUSED
Frame
Alignment
Signal Error
Count
Changes
State when
Slip
1 Out of Sync
0 In Sync
1 Out of Sync
0 In Sync
1 Alarm
Detected
0 No Alarm
1 Alarm
Detected
0 No Alarm
1 XSt High
0 XSt Low
Performed
Master Control Word 1 (MSW1) - CSTo, Channel 18
Si2
Si1
UNUSED
CRC Timer
CRC Ref
CRC Sync
FrmPhase
Remote SMF2
is:
Remote SMF1
is:
Transition
from 1 to 0
1 Reframed
1 CRC Frame
Bit 8 of Phase
Status Word
indicates start forced by lack not Detected
of CRC Error
Counter
1 Correct
0 Errored
1 Correct
0 Errored
of CRC frame
0 CRC Frame
Detected
Master Status Word 2 (MSW2) - CSTo, Channel 21
TxTSC
TxBTC
Transmit Timeslot Count, Timeslots between F0i and E8Ko
Transmit Bit Count - bit positions within TxTSC
between F0i and E8Ko
Phase Status Word - CSTo, Channel 19
CERC 0 - 7
Bits 0 - 7 of CRC Error Counter
CRC Error Counter - CSTo, Channel 20
A(N)
B(N)
C(N)
D(N)
A(N + 15)
B(N + 15)
C(N + 15)
D(N + 15)
Rx
Rx
Rx
Rx
Rx
Rx
Rx
Rx
Signalling Bit
Signalling Bit
Signalling Bit
Signalling Bit
Signalling Bit
Signalling Bit
Signalling Bit
Signalling Bit
Received Channel Associated Signalling - CSTo, Channels N = 1 to 15
IUO
FAF2-8
International
Bit
Received Frame Alignment Signal
Received Frame Alignment Signals - CSTo, Channel 16
MA1-4
X1
Y
X2, X3
International Bits
Received Multiframe Alignment Signal
International
Bit
1 Remote MF
Lost
0 Remote MF
Detected
Received Multiframe Alignment Signals - CSTo, Channel 0
IU1
NFAF
ALM
NU1-5
Received Bits Reserved for National Use
Reserved for
International
Use
1 Detected
0 Not
Detected
Received Non-Frame Alignment Signal - CSTo, Channel 17
4-185
MITEL [ MITEL NETWORKS CORPORATION ]
