Altera Stratix GX Transceiver - Manual (Page 15)

Altera Corporation 1–7
January 2005 Stratix GX Transceiver User Guide
Introduction
Figure 1–3. Block Diagram of a Duplex Channel Configured in SONET Mode
XAUI Mode
Stratix GX transceivers contain embedded macros dedicated to
supporting the XAUI protocol, specified in clause 47 of the IEEE 802.3ae
specification. These macros includes synchronization, channel deskew,
rate matching, XGXS to XGMII, and XGMII to XGXS code-group
conversion. Refer to the XAUI Mode chapter for more details on the
configurability of this mode.
Figure 1–4 shows a block diagram of a
duplex channel configured in XAUI mode.
Deserializer
Serializer
Word
Aligner
8B/10B
Decoder
Channel
Aligner
Byte
Deserializer
8B/10B
Encoder
Phase
Compensation
FIFO Buffer
Reference
Clock
Reference
Clock
Byte
Serializer
Phase
Compensation
FIFO Buffer
Rate
Matcher
Digital Section Analog Section
Receiver
PLL
Transmitter
PLL
Clock
Recovery
Unit
Receiver
Transmitter