Intel Arria 10 User Manual

Figure 141. RX Polarity Inversion
tx_parallel_data
rx_parallel_data
11111100001110111100
11111100001... 00000011110001000011
01
11
11111100001110111100
rx_polinv
rx_patterndetect
rx_syncstatus
2.9.2.5. RX Bit Reversal
The RX bit reversal feature can be enabled in low latency, basic, and basic rate match
mode. The word aligner is available in any mode, bit slip, manual, or synchronous
state machine.
To enable this feature, select the Enable RX bit reversal and Enable
rx_std_bitrev_ena port options. This adds rx_std_bitrev_ena. If there is more
than one channel in the design, rx_std_bitrev_ena becomes a bus in which each
bit corresponds to a channel. As long as rx_std_bitrev_ena is asserted, the RX
data received by the core shows bit reversal.
You can verify this feature by monitoring rx_parallel_data.
Figure 142. RX Bit Reversal
tx_parallel_data
rx_parallel_data
11111100001110111100
01
11
rx_std_bitrev_ena
rx_patterndetect
rx_syncstatus
00 01
11111100001110111100
1111110000111011110000111101110000111111
2.9.2.6. RX Byte Reversal
The RX byte reversal feature can be enabled in low latency, basic, and basic rate
match mode. The word aligner is available in any mode.
To enable this feature, select the Enable RX byte reversal and Enable
rx_std_byterev_ena port options. This adds rx_std_byterev_ena. If there is
more than one channel in the design, rx_std_byterev_ena becomes a bus in which
each bit corresponds to a channel. As long as rx_std_byterev_ena is asserted, the
RX data received by the core shows byte reversal.
You can verify this feature by monitoring rx_parallel_data.
Figure 143. RX Byte Reversal
tx_parallel_data
rx_parallel_data
11111100001110111100
01
11
rx_std_byterev_ena
rx_patterndetect
rx_syncstatus
01
111111... 11111100001110111100
10
11101111001111110000
2.9.2.7. Rate Match FIFO in Basic (Single Width) Mode
Only the rate match FIFO operation is covered in these steps.
2. Implementing Protocols in Arria 10 Transceivers
UG-01143 | 2018.06.15
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10 Transceiver PHY User Guide
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Intel Arria 10 Specifications

General

Brand	Intel
Model	Arria 10
Category	Transceiver
Language	English