
9–14 Chapter 9: Custom PHY IP Core
Interfaces
Altera Transceiver PHY IP Core November 2012 Altera Corporation
User Guide
Interfaces
Figure 9–2 illustrates the top-level signals of the Custom PHY IP Core. The variables
in Figure 9–2 represent the following parameters:
■ <n>—The number of lanes
■ <w>—The width of the FPGA fabric to transceiver interface per lane
■ <s>— The symbol size
Avalon data interfaces Off Off
Enabled embedded reset controller On On
Word Aligner Options
Word alignment mode
Automatic synchronization state
machine
Automatic synchronization state
machine
Number of consecutive valid words
before sync state is reached
33
Number of bad data words before loss
of sync state
33
Number of valid patterns before sync
state is reached
33
Create optional word aligner status
ports
Off Off
Word aligner pattern length 10
10
Word alignment pattern 1011111100 0101111100
Enable run length violation checking Off Off
Run length ——
Rate Match Options
Enable rate match FIFO On On
Rate match insertion/deletion +ve
disparity pattern
10100010010101111100 10100010010101111100
Rate match insertion/deletion -ve
disparity pattern
10101011011010000011 10101011011010000011
8B/10B Options
Enable 8B/10B decoder/encoder On On
Enable manual disparity control Off Off
Create optional 8B/10B status port Off Off
Byte
Order Options
Enable byte ordering block Off Off
Enable byte ordering block manual
control
Off Off
Byte ordering pattern ——
Byte ordering pad pattern ——
Table 9–10. Presets for Ethernet Protocol (Part 2 of 2)
Parameter Name GIGE-1.25 Gbps GIGE-2.50 Gbps
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