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Rainbow Electronics DS2143Q User Manual

Page 10

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DS2143/DS2143Q

031397 10/40

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

TCR2: TRANSMIT CONTROL REGISTER 2 (Address=13 Hex)

(MSB)

(LSB)

Sa8S

Sa7S

Sa6S

Sa5S

Sa4S

AEBE

P34F

SYMBOL

POSITION

NAME AND DESCRIPTION

Sa8S

TCR2.7

Sa8 Bit Select. Set to one to source the Sa8 bit from the TLINK pin; set to
zero to not source the Sa8 bit.

Sa7S

TCR2.6

Sa7 Bit Select. Set to one to source the Sa7 bit from the TLINK pin; set to
zero to not source the Sa7 bit.

Sa6S

TCR2.5

Sa6 Bit Select. Set to one to source the Sa6 bit from the TLINK pin; set to
zero to not source the Sa6 bit.

Sa5S

TCR2.4

Sa5 Bit Select. Set to one to source the Sa5 bit from the TLINK pin; set to
zero to not source the Sa5 bit.

Sa4S

TCR2.3

Sa4 Bit Select. Set to one to source the Sa4 bit from the TLINK pin; set to
zero to not source the Sa4 bit.

TCR2.2

Not Assigned. Should be set to zero when written to.

AEBE

TCR2.1

Automatic E–Bit Enable.
0 = E–bits not automatically set in the transmit direction
1 = E–bits automatically set in the transmit direction

P34F

TCR2.0

Function of Pin 34.
0 = Receive Loss of Sync (RLOS)
1 = Loss of Transmit Clock (LOTC)

CCR: COMMON CONTROL REGISTER (Address=14 Hex)

(MSB)

(LSB)

LLB

THDB3

TG802

TCRC4

RSM

RHDB3

RG802

RCRC4

SYMBOL

POSITION

NAME AND DESCRIPTION

LLB

CCR.7

Local Loopback.
0 = loopback disabled
1 = loopback enabled

THDB3

CCR.6

Transmit HDB3 Enable.
0 = HDB3 disabled
1 = HDB3 enabled