
Altera Corporation 6–3
January 2005 Stratix GX Transceiver User Guide
GigE Mode
Figure 6–2. Block Diagram of a Duplex Channel Configured in GigE Mode
/C2/
Configuration 2 4
/K28.5/D2.2/Config_Reg (1)
/I/
IDLE
/I1/ is correcting; /I2/ is preserving
/I1/
IDLE 1 2
/K28.5/D5.6/
/I2/
IDLE 2 2
/K28.5/D16.2/
Encapsulation
/R/ Carrier_Extend
1
/K23.7/
/S/ Start_of_Packet
1
/K27.7/
/T/ End_of_Packet
1
/K29.7/
/V/ Error_Propagation
1
/K30.7/
Note to Ta bl e 6– 1:
(1) Two data code groups represent the Config_Reg value.
Table 6–1. GigE Code Groups (Part 2 of 2) Note (1)
Code Ordered Set
Number of
Code Groups
Encoding
Word
Aligner
Phase
Compensation
FIFO Buffer
Deserializer
Serializer
8B/10B
Decoder
Channel
Aligner
Byte
Deserializer
8B/10B
Encoder
Reference
Clock
Reference
Clock
Byte
Serializer
Phase
Compensation
FIFO Buffer
Rate
Matcher
Digital SectionAnalog Section
Receiver
PLL
Transmitter
PLL
Clock
Recovery
Unit
Receiver
Transmitter
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