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DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver
205 of 344
Register Name:
TR.T1RCR2
Register Description:
T1 Receive Control Register 2
Register Address:
04h
Bit # 7 6 5 4 3 2 1 0
Name — RFM RB8ZS RSLC96 RZSE — RJC RD4YM
Default 0 0 0 0 0 0 0 0
Bit 6: Receive Frame Mode Select (RFM)
0 = D4 framing mode
1 = ESF framing mode
Bit 5: Receive B8ZS Enable (RB8ZS)
0 = B8ZS disabled
1 = B8ZS enabled
Bit 4: Receive SLC-96 Enable (RSLC96). Only set this bit to a 1 in D4/SLC-96 framing applications. See Section
10.18 for details.
0 = SLC-96 disabled
1 = SLC-96 enabled
Bit 3: Receive FDL Zero-Destuffer Enable (RZSE). Set this bit to 0 if using the internal HDLC/BOC controller
instead of the legacy support for the FDL. See Section
10.17 for details.
0 = zero destuffer disabled
1 = zero destuffer enabled
Bit 2: Reserved. Set to zero for proper operation.
Bit 1: Receive Japanese CRC6 Enable (RJC)
0 = use ANSI/AT&T/ITU CRC6 calculation (normal operation)
1 = use Japanese standard JT–G704 CRC6 calculation
Bit 0: Receive-Side D4 Yellow Alarm Select (RD4YM)
0 = 0s in bit 2 of all channels
1 = a 1 in the S-bit position of frame 12 (J1 Yellow Alarm Mode)