Datasheet

____________________________________________________ DS34T101, DS34T102, DS34T104, DS34T108
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Register Name:
RCR1-E1
Register Description:
Receive Control Register 1 (E1 Mode)
Register Address:
base address + 0x204
Bit # 7 6 5 4 3 2 1 0
Name - RHDB3 RSIGM - RCRC4 FRC SYNCE RESYNC
Default 0 0 0 0 0 0 0 0
Note: This register has an alternate definition for T1 mode. See RCR1-T1.
Bit 6:
Rx HDB3 Enable (RHDB3).
0 = HDB3 decoding disabled
1 = HDB3 decoding enabled (decoded per O.162)
Bit 5: Rx Signaling Mode Select (RSIGM).
0 = CAS signaling mode
1 = CCS signaling mode
Bit 4: Reserved.
Bit 3: Rx CRC-4 Enable (RCRC4).
0 = CRC-4 disabled
1 = CRC-4 enabled
Bit 2: Frame Resync Criteria (FRC).
0 = resync if FAS received in error 3 consecutive times
1 = resync if FAS or bit 2 of non–FAS is received in error 3 consecutive times
Bit 1: Sync Enable (SYNCE).
0 = auto resync enabled
1 = auto resync disabled
Bit 0: Resynchronize (RESYNC). When toggled from low to high, a resynchronization of the Rx side framer is
initiated. Must be cleared and set again for a subsequent resync.