Manual

DS2154
031197 19/69
TCR1: TRANSMIT CONTROL REGISTER 1 (Address=12 Hex)
(MSB) (LSB)
ODF TFPT T16S TUA1 TSiS TSA1 TSM TSIO
SYMBOL POSITION NAME AND DESCRIPTION
ODF TCR1.7 Output Data Format.
0=bipolar data at TPOSO and TNEGO
1=NRZ data at TPOSO; TNEGO=0
TFPT TCR1.6 Transmit Timeslot 0 Pass Through.
0=FAS bits/Sa bits/Remote Alarm sourced internally from the TAF and
TNAF registers
1=FAS bits/Sa bits/Remote Alarm sourced from TSER
T16S TCR1.5 Transmit Timeslot 16 Data Select.
0=sample timeslot 16 at TSER pin
1=source timeslot 16 from TS0 to TS15 registers
TUA1 TCR1.4 Transmit Unframed All Ones.
0=transmit data normally
1=transmit an unframed all one’s code at TPOSO and TNEGO
TSiS TCR1.3 Transmit International Bit Select.
0=sample Si bits at TSER pin
1=source Si bits from TAF and TNAF registers (in this mode, TCR1.6 must
be set to 0)
TSA1 TCR1.2 Transmit Signaling All Ones.
0=normal operation
1=force timeslot 16 in every frame to all ones
TSM TCR1.1 TSYNC Mode Select.
0=frame mode (see the timing in Section 13)
1=CAS and CRC4 multiframe mode (see the timing in Section 13)
TSIO TCR1.0 TSYNC I/O Select.
0=TSYNC is an input
1=TSYNC is an output
NOTE:
See Figure 13–11 for more details about how the Transmit Control Registers affect the operation of the DS2154.