Datasheet

DS26518 8-Port T1/E1/J1 Transceiver
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Register Name:
TCR1 (E1 Mode)
Register Description:
Transmit Control Register 1
Register Address:
181h + (200h x (n - 1)) : where n = 1 to 8
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 TSERn.
Bit 6: Transmit Time Slot 16 Data Select (T16S). See Section
9.9.4 on software signaling.
0 = Time slot 16 determined by the
SSIE1–4 and THSCS1–4 registers.
1 = Source time slot 16 from
TS1–16 registers.
Bit 5: Transmit G.802 Enable (TG802). See Section
11.4.
0 = Do not force TCHBLKn high during bit 1 of time slot 26.
1 = Force TCHBLKn high during bit 1 of time slot 26.
Bit 4: Transmit International Bit Select (TSiS)
0 = Sample Si bits at TSERn 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 TTIPn and TRINGn.
Bit 0: Transmit CRC-4 Enable (TCRC4)
0 = CRC-4 disabled.
1 = CRC-4 enabled.