XRT79L71_1 Datasheet, PDF (179/434 Pages) Exar Corporation – 1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC -

REV. 1.0.0
XRT79L71
1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC - REGISTER/MAP DESCRIPTION
Transmit E3 MA Byte Register - G.832 (Address = 0x1136)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
TxMA Byte[7:0]
R/W
R/W
R/W
R/W
R/W
0
0
0
1
0
BIT 2
R/W
0
BIT 1
R/W
0
BIT 0
R/W
0
BIT NUMBER
NAME
7-0
TxMA_Byte[7:0]
TYPE
R/W
DESCRIPTION
Transmit MA Byte:
This READ/WRITE bit-field permits the user to specify the con-
tents of the MA byte, within the Outbound E3 data stream. The
Transmit E3 Framer block will load the contents of this register in
the MA byte-field, within each outbound E3 frame.
NOTES:
1. This register is ignored if the Transmit MA Byte - from
Receiver option is selected (e.g., by setting TxMA Rx =
"1".
2. This feature permits the user to transmit FERF/RDI and
FEBE/REI indicators upon software command.
Transmit E3 NR Byte Register - G.832 (Address = 0x1137)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
TxNR_Byte[7:0]
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
BIT 2
R/W
0
BIT 1
R/W
0
BIT 0
R/W
0
BIT NUMBER
NAME
7-0
TxNR_Byte[7:0]
TYPE
R/W
DESCRIPTION
Transmit NR Byte:
This READ/WRITE bit-field permits the user to specify the con-
tents of the NR byte, within the Outbound E3 data stream. The
Transmit E3 Framer block will load the contents of this register in
the NR byte-field, within each outbound E3 frame.
This register is ignored if the NR byte is configured to be the
LAPD/PMDL channel.
Transmit E3 Trail-Trace - 0 Register - G.832 (Address = 0x1138)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
TxTTB_Byte_0
R/W
R/W
R/W
R/W
R/W
1
0
0
0
0
BIT 2
R/W
0
BIT 1
R/W
0
BIT 0
R/W
0
170