Rainbow Electronics DS2143Q User Manual
Page 10

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