User guide

10–8 Chapter 10: Migrating from Stratix IV to Stratix V
Custom PHY
Altera Transceiver PHY IP Core User Guide December 2010 Altera Corporation
Custom PHY
This section lists the differences between the parameters and signals for the Custom
PHY IP core nd the ALTGX megafunction when configured in the Basic functional
mode.
Parameter Differences
Table 10–5 lists the Custom PHY parameters and the corresponding ALTGX
megafunction parameters.
Table 10–5. Comparison of ALTGX Megafunction and Custom PHY Parameters
ALTGX Parameter Name (Default Value) Custom PHY Parameter Name
General
What is the number of channel? Number of lanes
Which subprotocol will you be using? (×4, ×8) Bonded group size in lanes (1–5)
What is the channel width? Serialization factor
What is the effective data rate? Data rate
What is the input clock frequency? Input clock frequency
tx/rx_8b_10b_mode Enable 8B/10B encoder/decoder
What is the deserializer block width?
Single
Double
Deserializer block width: (1)
Auto
Single
Double
Protocol Settings–Word Aligner Word Aligner
Use manual word alignment mode
Use manual bitslipping
mode
Use the built-in ‘synchronization state machine’
Word alignment mode
Enable run length violation checking with a run length of Run length
What is the word alignment patternWord alignment pattern
What is the word alignment pattern lengthWord aligner pattern length
Protocol Settings—Rate match/Byte order Rate Match
What is the 20-bit rate match pattern1
(usu
ally used for +ve disparity pattern)
Rate match insertion/deletion +ve disparity pattern
What is the 20-bit rate match pattern1
(usually used for -ve disparity pattern)
Rate match insertion/deletion -ve disparity pattern
Protocol Settings—Rate match/Byte order Byte Order
What is the byte ordering patternByte ordering pattern
Note to Table 10–5:
(1) This parameter is on the Datapath tab.