Altera Stratix GX Transceiver - Manual (Page 14)

1–6 Altera Corporation
Stratix GX Transceiver User Guide January 2005
Modes of Operation
Figure 1–2. Block Diagram of a Duplex Channel Configured in Basic Mode
SONET Mode
SONET mode lets you to select a subset of the transceiver blocks to
perform SONET-like configuration. SONET-like implies that the data
width can either be 8 or 16 bits and that the 8B/10B encoder/decoder,
channel aligner, and the rate matcher features are not available. Refer to
the SONET Mode chapter for more details on the configurability of this
mode.
Figure 1–3 shows a block diagram of a duplex channel configured
in SONET 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