Rainbow Electronics DS26504 User Manual

Page 47

DS26504 T1/E1/J1/64KCC BITS Element

47 of 128

E1TCR

E1 Transmit Control Register

1Eh

Bit

# 7 6 5 4 3 2 1 0

Name TFPT — ARA TSiS

AEBE

TUA1

THDB3

AAIS

Default

0 0 0 0 0 0 0 0

HW
Mode

0 0 0 0 0 0

HBE

PIN 55

Bit 0: Automatic AIS Generation (AAIS)

0 = disabled
1 = enabled

Bit 1: Transmit HDB3 Enable (THDB3)

0 = HDB3 disabled
1 = HDB3 enabled

Bit 2: Transmit Unframed All Ones (TUA1)

0 = transmit data normally

1 = transmit an unframed all-ones code to LIU

Bit 3: Automatic E-Bit Enable (AEBE)

0 = E bits not automatically set in the transmit direction

1 = E bits automatically set in the transmit direction

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 0)

Bit 5: Automatic Remote Alarm Generation (ARA)

0 = disabled

1 = enabled

Bit 6:Unused, must be set = 0 for proper operation.

Bit 7: Transmit Time Slot 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