Maxim Integrated DS21Q55 User Manual
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Register Name:
E1TCR1
Register Description:
E1 Transmit Control Register 1
Register Address:
35h
Bit #
7
6
5
4
3
2
1
0
Name
TFPT
T16S
TUA1
TSiS
TSA1
THDB3
TG802
TCRC4
Default
0
0
0
0
0
0
0
0
Bit 0/Transmit CRC4 Enable (TCRC4).
0 = CRC4 disabled
1 = CRC4 enabled
Bit 1/Transmit G.802 Enable (TG802). See Functional Timing Diagrams for details.
0 = do not force TCHBLK high during bit 1 of timeslot 26
1 = force TCHBLK high during bit 1 of timeslot 26
Bit 2/Transmit HDB3 Enable (THDB3).
0 = HDB3 disabled
1 = HDB3 enabled
Bit 3/Transmit Signaling All Ones (TSA1).
0 = normal operation
1 = force timeslot 16 in every frame to all ones
Bit 4/Transmit International Bit Select (TSiS).
0 = sample Si bits at TSER pin
1 = source Si bits from TAF and TNAF registers (in this mode, E1TCR1.7 must be set to zero)
Bit 5/Transmit Unframed All Ones (TUA1).
0 = transmit data normally
1 = transmit an unframed all one’s code at TPOSO and TNEGO
Bit 6/Transmit Timeslot 16 Data Select (T16S). See Transmit Signaling for details
0 = timeslot 16 determined by the SSIEx registers and the THSCS function in the PCPR register
1 = source timeslot 16 from TS1 to TS16 registers
Bit 7/Transmit Timeslot 0 Pass Through (TFPT).
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