DS2154 Dallas Semiconducotr, DS2154 Datasheet - Page 50

• Manufacturer Part Number: DS2154
• Description: Enhanced E1 Single Chip Transceiver
• Manufacturer: Dallas Semiconducotr

TCBR1/TCBR2/TCBR3/TCBR4: DEFINITION WHEN CCR3.6=1
*=CH1 and CH17 should be set to 1 to allow the internal TS1 register to create the CAS Multiframe
Alignment Word and Spare/Remote Alarm bits.
The user can also take advantage of this functionality to intermix signaling data from the TSIG pin and
from the internal Transmit Signaling Registers (TS1 to TS16). As an example, assume that the user
wishes to source all the signaling data except for voice channels 5 and 10 from the TSIG pin. In this
application, the following bits and registers would be programmed as follows:
CONTROL BITS ..................................................................................................
TSRE=1 (CCR3.2) .......................................................................................................................................
TCBFS=1 (CCR3.6) .....................................................................................................................................
T16S=1 (TCR1.5) ........................................................................................................................................
(MSB)
CH20
CH24
CH28
CH32
REGISTER VALUES
.......................................................................... TS1=0Bh (MF alignment word, remote alarm etc.)
................................................................................TCBR1=03h (source timeslot 16, frame 1 data)
......................................................TCBR2=01h (source voice Channel 5 signaling data from TS6)
CH12
CH16
CH4
CH8
CH19
CH23
CH27
CH31
CH11
CH15
CH3
CH7
TCBR3=04h (source voice Channel 10 signaling data from TS11)
TCBR4=00h
CH18
CH22
CH26
CH30
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CH10
CH14
CH6
CH2
CH17*
CH21
CH25
CH29
CH1*
CH13
CH5
CH9
(LSB)
TCBR1(22)
TCBR2(23)
TCBR3(24)
TCBR4(25)
DS2154