Altera SDI II MegaCore User Manual
Page 53
Figure 4-15: Multi Rate (up to 12G-SDI) Receiver Data Path Block Diagram
Note: The receive block shown in the diagram is the simplified version of the transmit block in the Triple
Rate SDI Receiver Data Path Block Diagram.
Detect
Video
Standard
Transceiver
Control
State
Machine
RX PHY
Management
& PHY Adapter
Transceiver
TRS
Aligner
Descrambler
RX Protocol
Parallel
Video Out 80
80
20
RX
Oversample
80
80
SDI In
Detect
1 & 1/1,001
Rate
Detect
Format
Receive
Match
TRS
20
Extract
Line
Check
CRC
Extract
Payload
ID
Demultiplexer
Multiplexer
20
Detect
Format
Receive
Match
TRS
20
Extract
Line
Check
CRC
Extract
Payload
ID
Demultiplexer
Multiplexer
20
Detect
Format
Receive
Match
TRS
20
Extract
Line
Check
CRC
Extract
Payload
ID
Demultiplexer
Multiplexer
20
Detect
Format
Receive
Match
TRS
20
Extract
Line
Check
CRC
Extract
Payload
ID
Demultiplexer
Multiplexer
20
Prealign
20
20
20
20
20
20
20
For bidirectional or duplex mode, the protocol and PHY management & adapter blocks remain the same
for each direction, except the hard transceiver, which is configured in duplex mode. The figure below
illustrates the data path of a SD-SDI duplex mode.
UG-01125
2015.05.04
Receiver
4-11
SDI II IP Core Functional Description
Altera Corporation