XRT79L71_1 Datasheet, PDF (180/434 Pages) Exar Corporation – 1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC -

XRT79L71
1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC - REGISTER/MAP DESCRIPTION
REV. 1.0.0
BIT NUMBER
NAME
7-0
TxTTB_Byte_0[7:0]
TYPE
R/W
DESCRIPTION
Transmit TTB (Trail-Trace Buffer) Byte 0:
These READ/WRITE bits permit the user to specify the contents
of byte 0, within the Outbound Trail-Trace Message which is to
be transmitted via the outbound E3 data stream.
By default, the MSB (Most Significant Bit) of this register bit will
be set to "1" in order to permit the remote terminal to be able to
identify this particular byte, as being the first byte of the Trail-
Trace Buffer Message.
Transmit E3 Trail-Trace - 1 Register - G.832 (Address = 0x1139)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
TxTTB_Byte_1
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
TxTTB_Byte_1[7:0]
TYPE
R/W
DESCRIPTION
Transmit Trail-Trace Message - Byte 1:
These READ/WRITE bits permit the user to specify the contents
of the second byte (Byte 1) within the Trail-Trace Message that
is to be transported via the outbound E3 data stream.
NOTE: In order to permit the proper reception of this particular
Trail-Trace Message, it is imperative that the user set the
MSB (Most Significant bit) within this register to "0".
Transmit E3 Trail-Trace - 2 Register - G.832 (Address = 0x113A)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
TxTTB_Byte_2
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
TxTTB_Byte_2[7:0]
TYPE
R/W
DESCRIPTION
Transmit Trail-Trace Message - Byte 2:
These READ/WRITE bits permit the user to specify the contents
of the third byte (Byte 2) within the Trail-Trace Message that is to
be transported via the outbound E3 data stream.
NOTE: In order to permit the proper reception of this particular
Trail-Trace Message, it is imperative that the user set the
MSB (Most Significant bit) within this register to "0".
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