Datasheet

DS26521 Single T1/E1/J1 Transceiver
182 of 258
Register Name:
TCR1 (E1 Mode)
Register Description:
Transmit Control Register 1
Register Address:
181h
Bit # 7 6 5 4 3 2 1 0
Name TTPT T16S TG802 TSiS TSA1 THDB3 TAIS TCRC4
Default 0 0 0 0 0 0 0 0
Note: See TCR1 for T1 mode.
Bit 7: Transmit Time Slot 0 Pass Through (TTPT).
0 = FAS bits/Sa bits/remote alarm sourced internally from the
E1TAF and E1TNAF registers
1 = FAS bits/Sa bits/remote alarm sourced from TSER
Bit 6: Transmit Time Slot 16 Data Select (T16S). See Section
8.9.4 on software signaling.
0 = time slot 16 determined by the SSIEx and
THSCS1:THSCS4 registers
1 = source time slot 16 from
TS1:TS16 registers
Bit 5: Transmit G.802 Enable (TG802). See Section
10.4.
0 = do not force TCHBLK high during bit 1 of time slot 26
1 = force TCHBLK high during bit 1 of time slot 26
Bit 4: Transmit International Bit Select (TSiS).
0 = sample Si bits at TSER pin
1 = source Si bits from
E1TAF and E1TNAF registers (in this mode, TCR1.7 must be set to 0)
Bit 3: Transmit-Signaling All Ones (TSA1).
0 = normal operation
1 = force time slot 16 in every frame to all ones
Bit 2: Transmit HDB3 Enable (THDB3).
0 = HDB3 disabled
1 = HDB3 enabled
Bit 1: Transmit AIS (TAIS).
0 = transmit data normally
1 = transmit an unframed all-ones code at TTIP and TRING
Bit 0: Transmit CRC-4 Enable (TCRC4).
0 = CRC-4 disabled
1 = CRC-4 enabled