Intel Cyclone 10 GX User Manual page 91

2. Implementing Protocols in Intel Cyclone 10 GX Transceivers
UG-20070 | 2018.09.24
Figure 35. rx_syncstatus High
rx_parallel_data
rx_datak
rx_syncstatus
rx_patterndetect
rx_disperr
rx_errdetect
Related Information
Word Aligner
2.6.1.3. 8B/10B Decoding for GbE, GbE with IEEE 1588v2
The 8B/10B decoder takes a 10-bit encoded value as input and produces an 8-bit data
value and 1-bit control value as output.
Figure 36. Decoding for GbE
Dx.y(0x8d), Dx.y(0xa4), K28.5(0xbc), and Dx.y(0x50) are received at
the word alignment pattern.
high when bc is received, indicating that the decoded word is a control word. Otherwise,
rx_runningdisp
positive disparity.
rx_datak
rx_parallel_data 8d
rx_patterndetect
rx_disperr
rx_errdetect
rx_runningdisp
Related Information
8B/10B Decoder
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Three Consecutive Ordered Sets Received to Achieve Synchronization
bc c5 bc
on page 305
rx_patterndetect
is high for 0x8d, indicating that the decoded word has negative disparity and 0xa4 has
a4 bc 50 8d
on page 311
50 bc 50
rx_parallel_data
goes high whenever it detects /K28.5/(0xbc).
a4 bc 50 8d a4
® ®
Intel Cyclone
8c 8d 00
. /K28.5/ is set as
is
rx_datak
is low.
rx_datak
bc 50 8d a4
10 GX Transceiver PHY User Guide
8c 8d
bc 50
91