DS2143 datasheet(11/44 Pages) DALLAS

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DS2143/DS2143Q

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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 TPOS and TNEG.

1 = NRZ data at TPOS; TNEG=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 TS1 to TS16 registers.

TUA1

TCR1.4

Transmit Unframed All 1s.

0 = transmit data normally.

1 = transmit an unframed all 1s code at TPOS and TNEG.

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 1s.

0 = normal operation.

1 = force timeslot 16 in every frame to all 1s.

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.

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