XRT86VL34 Datasheet, PDF (64/174 Pages) Exar Corporation – QUAD T1/E1/J1 FRAMER/LIU COMBO - E1 REGISTER DESCRIPTION

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REV. P1.0.5
PRELIMINARY
XRT86VL34
QUAD T1/E1/J1 FRAMER/LIU COMBO - E1 REGISTER DESCRIPTION
TABLE 41: TRANSMIT Sa AUTO CONTROL REGISTER 1 (TSACR1)
HEX ADDRESS: 0XN131
BIT
FUNCTION
TYPE DEFAULT
DESCRIPTION-OPERATION
7 LOSLFA_1_ENB
R/W
0
LOS/LFA 1 automatic transmission
This bit enables the automatic Sa-bit transmission upon detecting
Loss of Signal (LOS) or Loss of frame alignment (LFA) condition.
Upon detecting Loss of Signal or Loss of Frame alignment condi-
tion, E1 framer will transmit the Sa5 bit as ‘1’, and Sa6 bit as ‘0’ pat-
tern.
See Table 42 for the transmit Sa5, Sa6, and A bit pattern upon
detecting LOS or LFA conditions.
6 LOS_1_ENB
R/W
0
LOS 1 automatic transmission
This bit enables the auto Sa-bit transmission upon detecting Loss of
Signal (LOS) condition.
Upon detecting Loss of Signal condition, E1 framer will transmit the
Alarm bit (A bit) as ‘1’, Sa5 bit as ‘1’, and Sa6 bit as ‘1110’ pattern.
See Table 42 for the transmit Sa5, Sa6, and A bit pattern upon
detecting LOS condition.
5 LOSLFA_2_ENB
R/W
0
LOS/LFA 2 automatic transmission
This bit enables the auto Sa-bit transmission upon detecting Loss of
Signal (LOS) or Loss of frame alignment (LFA) condition.
Upon detecting Loss of Signal or Loss of Frame alignment condi-
tion, E1 framer will transmit the Alarm bit (A bit) as ‘1’, Sa5 bit as ‘0’,
and Sa6 bit as ‘0’ pattern.
See Table 42 for the transmit Sa5, Sa6, and A bit pattern upon
detecting LOS or LFA conditions.
4 LOSLFA_3_ENB
R/W
0
LOS/LFA 3 automatic transmission
This bit enables the auto Sa-bit transmission upon detecting Loss of
Signal (LOS) or Loss of frame alignment (LFA) condition.
Upon detecting Loss of Signal or Loss of Frame alignment condi-
tion, E1 framer will transmit the Alarm bit (A bit) as ‘0’, Sa5 bit as ‘1’,
and Sa6 bit as ‘1100’ pattern.
See Table 42 for the transmit Sa5, Sa6, and A bit pattern upon
detecting LOS/LFA conditions.
3 LOSLFA_4_ENB
R/W
0
LOS/LFA 4 automatic transmission
This bit enables the auto Sa-bit transmission upon detecting Loss of
Signal (LOS) or Loss of frame alignment (LFA) condition.
Upon detecting Loss of Signal or Loss of Frame alignment condi-
tion, E1 framer will transmit the Alarm bit (A bit) as ‘0’, Sa5 bit as ‘1’,
and Sa6 bit as ‘1110’ pattern.
See Table 42 for the transmit Sa5, Sa6, and A bit pattern upon
detecting LOS/LFA conditions.
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