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DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver
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11.5.2 X.86 Registers
X.86 transmit and common registers are used to control the operation of the X.86 encoder and decoder.
Register Name:
LI.TX86EDE
Register Description:
X.86 Encoding Decoding Enable
Register Address:
0D8h
Bit # 7 6 5 4 3 2 1 0
Name - - - - - - - X86ED
Default 0 0 0 0 0 0 0 0
Bit 0: X.86 Encoding Decoding (X86ED) If this bit is set to 1, X.86 encoding and decoding is enabled for the
Transmit and Receive paths. The MAC Frame is encapsulated in the X.86 Frame for Transmit and the X.86
headers are checked for in the received data. If X.86 functionality is selected, the X.86 receiver byte boundary is
provided by the RBSYNC signal and the DS33R11 provides the transmit byte synchronization TBSYNC. No HDLC
encapsulation is performed.
Register Name:
LI.TRX86A
Register Description:
Transmit Receive X.86 Address
Register Address:
0D9h
Bit # 7 6 5 4 3 2 1 0
Name X86TRA7 X86TRA6 X86TRA5 X86TRA4 X86TRA3 X86TRA2 X86TRA1 X86TRA0
Default 0 0 0 0 0 1 0 0
Bits 0 - 7: X86 Transmit Receive Address (X86TRA0-7) This is the address field for the X.86 transmitter and for
the receiver. The register default value is 0x04.
Register Name:
LI.TRX8C
Register Description:
Transmit Receive X.86 Control
Register Address:
0DAh
Bit # 7 6 5 4 3 2 1 0
Name X86TRC7 X86TRC6 X86TRC5 X86TRC4 X86TRC3 X86TRC2 X86TRC1 X86TRC0
Default 0 0 0 0 0 0 1 1
Bits 0 - 7: X86 Transmit Receive Control (X86TRC0-7) This is the control field for the X.86 transmitter and
expected value for the receiver. The register is reset to 0x03
Register Name:
LI.TRX86SAPIH
Register Description:
Transmit Receive X.86 SAPIH
Register Address:
0DBh
Bit # 7 6 5 4 3 2 1 0
Name
TRSAPIH7 TRSAPIH6 TRSAPIH5 TRSAPIH4 TRSAPIH3 TRSAPIH2 TRSAPIH1 TRSAPIH0
Default 1 1 1 1 1 1 1 0
Bits 0 - 7: X86 Transmit Receive Address (TRSAPIH0-7) This is the address field for the X.86 transmitter and
expected for the receiver. The register is reset to 0xfe.