Datasheet

DS21Q58 E1 Quad Transceiver
20 of 74
Register Name:
CCR1
Register Description:
Common Control Register 1
Register Address:
12 Hex
Bit # 7 6 5 4 3 2 1 0
Name FLB THDB3 TIBE TCRC4 RSMS RHDB3 PCLMS RCRC4
NAME BIT FUNCTION
FLB 7
Framer Loopback. See Section 8.2
for details.
0 = loopback disabled
1 = loopback enabled
THDB3 6
Transmit HDB3 Enable
0 = HDB3 disabled
1 = HDB3 enabled
TIBE 5
Transmit Insert Bit Error. A 0-to-1 transition causes a single bit error to be
inserted in the transmit path.
TCRC4 4
Transmit CRC4 Enable
0 = CRC4 disabled
1 = CRC4 enabled
RSMS 3
Receive Signaling Mode Select
0 = CAS signaling mode. Receiver searches for the CAS MF alignment
signal.
1 = CCS signaling mode. Receiver does not search for the CAS MF
alignment signal.
RHDB3 2
Receive HDB3 Enable
0 = HDB3 disabled
1 = HDB3 enabled
PCLMS 1
Per-Channel Loopback Mode Select. See Section 17
for details.
0 = remote per-channel loopback
1 = local per-channel loopback
RCRC4 0
Receive CRC4 Enable
0 = CRC4 disabled
1 = CRC4 enabled