Altera Stratix GX Transceiver Manual do Utilizador Página 14

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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 SectionAnalog Section
Receiver
PLL
Transmitter
PLL
Clock
Recovery
Unit
Receiver
Transmitter
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