Bt8370/8375/8376
3.12 Transmitter Registers
Fully Integrated T1/E1 Framer and Line Interface
075—Transmit Alarm Signal Configuration (TALM)
7
6
5
4
3
2
1
0
—
—
AUTO_MYEL
AUTO_YEL
AUTO_AIS
TMYEL
TYEL
TAIS
AUTO_MYEL /TMYEL Automatic Manual Transmit Multiframe Yellow Alarm—Applicable to E1 modes only.
Automatic mode sends Multiframe Yellow Alarm for the duration of a receive loss of CAS
alignment [SRED; addr 049]. Manual mode sends Y16 Multiframe Yellow Alarm as long as
TMYEL is active.
INS_MYEL TMYEL AUTO_MYEL
Transmit Multiframe Yellow
Inactive, supplied by TPCMI
Inactive, supplied by TPCMI
E1–Y16–follows SRED status
E1–Y16
0
1
1
1
X
0
X
0
0
1
1
X
AUTO_YEL/TYEL
Automatic Manual Transmit Yellow Alarm—Automatic mode sends a Yellow Alarm for the
duration of a receive loss of frame alignment [FRED; addr 049]. Manual mode sends the alarm
as long as TYEL is active and Yellow Alarm insertion [INS_YEL; addr 072] is enabled.
INS_YEL
TYEL
AUTO_YEL
Transmit Yellow Alarm
Supplied by TPCMI
0
1
X
0
X
0
(1)
Inactive
1
1
0
1
1
Follows FRED status
Active
X
NOTE(S):
(1) When Inactive, time slot data passes through transmitter without modification.
2. To transmit T1DM Yellow Alarm (Y24), the processor must program TDL1,
TDL2, or TSLIP buffer to transmit Y-bit output in time slot 24.
3-76
Conexant
N8370DSE
CONEXANT [ CONEXANT SYSTEMS, INC ]
