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Rainbow Electronics DS26503 User Manual

Page 42

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DS26503 T1/E1/J1 BITS Element

42 of 123


Register Name:

T1TCR1

Register Description:

T1 Transmit Control Register 1

Register Address:

05h


Bit

# 7 6 5 4 3 2 1 0

Name TJC

TFPT

TCPT

— — — —

TYEL

Default 0 0 0 0 0 0 0 0
HW
Mode

RMODEx

PINS

0 0 0 0 0 0 0


Bit 0/Transmit Yellow Alarm (TYEL).

0 = do not transmit yellow alarm
1 = transmit yellow alarm


Bit 1/Unused, must be set = 0 for proper operation.

Bit 2/Unused, must be set = 0 for proper operation.

Bit 3/Unused, must be set = 0 for proper operation.

Bit 4/Unused, must be set = 0 for proper operation.

Bit 5/Transmit CRC Pass-Through (TCPT).

0 = source CRC6 bits internally
1 = CRC6 bits sampled at TSER during F-bit time


Bit 6/Transmit F-Bit Pass-Through (TFPT).

0 = F bits sourced internally
1 = F bits sampled at TSER


Bit 7/Transmit Japanese CRC6 Enable (TJC).

0 = use ANSI/AT&T/ITU CRC6 calculation (normal operation)
1 = use Japanese standard JT–G704 CRC6 calculation