XRT75R03D_06 Datasheet, PDF (80/135 Pages) Exar Corporation – EXAR DATA SHEET FORMAT TEMPLATES

XRT75R03D
THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCRONIZER
REV. 1.0.4
TABLE 27: TRANSMIT CONTROL REGISTER - CHANNEL 0 ADDRESS LOCATION = 0X04
Channel 1 Address Location = 0x0C
Channel 2 Address Location = 0x14
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
Unused
Internal Insert PRBS
Transmit
Error
Drive Monitor
Unused
TAOS
TxCLKINV
R/O
R/O
R/W
R/W
R/O
R/W
R/W
0
0
0
0
0
0
0
BIT 0
TxLEV
R/W
0
BIT NUMBER
NAME
7-6
5
Unused
Internal Transmit
Drive Monitor
TYPE
R/O
R/W
DEFAULT
VALUE
DESCRIPTION
0
0 Internal Transmit Drive Monitor Enable - Channel_n:
This READ/WRITE bit-field is used to configure the Trans-
mit Section of Channel_n to either internally or externally
monitor the TTIP_n and TRING_n output pins for bipolar
pulses, in order to determine whether to declare the Trans-
mit DMO Alarm condition.
If the user configures the Transmit Section to externally
monitor the TTIP_n and TRING_n output pins (for bipolar
pulses) then the user must make sure that he/she has con-
nected the MTIP_n and MRING_n input pins to their corre-
sponding TTIP_n and TRING_n output pins (via a 274 ohm
series resistor).
If the user configures the Transmit Section to internally
monitor the TTIP_n and TRING_n output pins (for bipolar
pulses) then the user does NOT need to make sure that the
MTIP_n and MRING_n input pins are connected to the
TTIP_n and TRING_n output pins (via series resistors).
This monitoring will be performed right at the TTIP_n and
TRING_n output pads.
0 - Configures the Transmit Drive Monitor to externally mon-
itor the TTIP_n and TRING_n output pins for bipolar pulses.
1 - Configures the Transmit Drive Monitor to internally mon-
itor the TTIP_n and TRING_n output pins for bipolar pulses.
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