Name Bit Functionality Description
[6] SKIP word location A logic high (1'b1) indicates the
SKIP word location in a metaframe.
[7] Diagnostic word location A logic high (1'b1) indicates the
diagnostic word location in a
metaframe.
[8] Synchronization header error, metaframe error,
or CRC32 error status
A logic high (1'b1) indicates
synchronization header error,
metaframe error, or CRC32 error
status.
[9] Block lock and frame lock status A logic high (1'b1) indicates that
block lock and frame lock have
been achieved.
[19:10] Unused
Table 57. Bit Encodings for 10GBASE-R
Name Bit Functionality
rx_control
[0]
XGMII control signal for parallel_data[7:0]
[1]
XGMII control signal for parallel_data[15:8]
[2]
XGMII control signal for parallel_data[23:16]
[3]
XGMII control signal for parallel_data[31:24]
[4]
XGMII control signal for parallel_data[39:32]
[5]
XGMII control signal for parallel_data[47:40]
[6]
XGMII control signal for parallel_data[55:48]
[7]
XGMII control signal for parallel_data[63:56]
[19:8] Unused
Table 58. Bit Encodings for Basic Single Width Mode
For basic single width mode, the total word length is 66-bit with 64-bit data and 2-bit synchronous header.
Name
Bit Functionality Description
rx_control
[1:0] Synchronous header The value 2'b01 indicates a data word. The value
2'b10 indicates a control word.
[7:2] Unused
[9:8] Synchronous header error status The value 2'b01 indicates a data word. The value
2'b10 indicates a control word.
[19:10] Unused
Table 59. Bit Encodings for Basic Double Width Mode
For basic double width mode, total word length is 66-bit with 128-bit data, and 4-bit synchronous header.
Name
Bit Functionality Description
rx_control
[1:0] Synchronous header The value 2'b01 indicates a data word. The
value 2'b10 indicates a control word.
[7:2] Unused
continued...
2. Implementing Protocols in Intel Cyclone 10 GX Transceivers
UG-20070 | 2018.09.24
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10 GX Transceiver PHY User Guide
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