Altera SDI II MegaCore - Manual (Page 33)

Avalon-MM Translators
The Avalon-MM Master Translator and Avalon-MM Slave Translator are Avalon-MM interface blocks
that access the Transceiver Reconfiguration Controller registers. The translators are not SDI-specific and
are automatically instantiated when the core interfaces with an Avalon-MM master or slave component.
If you want to bypass the Avalon MM translator in your design, connect
reconfig_mgmt_address[8:2]
from the reconfiguration management block to
reconfig_mgmt_address
from the Transceiver Reconfi‐
guration Controller.
You can connect the other signals from the reconfiguration management block directly to the Transceiver
Reconfiguration Controller.
•
reconfig_mgmt_waitrequest
•
reconfig_mgmt_read
•
reconfig_mgmt_readdata
•
reconfig_mgmt_write
•
reconfig_mgmt_writedata
For more information about the Avalon-MM Translator functions, refer to the Qsys Interconnect chapter
in volume 1 of the Quartus II Handbook.
Related Information
• Qsys Interconnect
More information about the Avalon-MM Translator functions.
• Avalon Interface Specifications
Transceiver Dynamic Reconfiguration
The dual and triple standard SDI receivers (or receivers of duplex SDIs) require the transceiver dynamic
reconfiguration feature to perform auto detection and locking to different SDI video rates. Transceiver
dynamic reconfiguration reconfigures the transceivers to support the three SDI video standards (SD, HD
and 3G).
Note: You need to perform transceiver dynamic reconfiguration on the SDI transmitter (or transmitters
of duplex SDIs) if you want to use the dynamic TX clock switching feature.
The dual and triple standard SDI use 11 times oversampling for receiving SD-SDI standard. As the rates
for 3G-SDI and SD-SDI are the same, transceiver reconfiguration is not required when the video standard
changes from 3G-SDI to SD-SDI and vice versa. Transceiver reconfiguration is only required when the
video standard changes from 3G-SDI or SD-SDI to HD-SDI, and vice versa.
To perform transceiver dynamic reconfiguration, you need the transceiver reconfiguration controller and
reconfiguration management/router blocks.
3-18 Avalon-MM Translators
UG-01125
2015.05.04
Altera Corporation SDI II IP Core Getting Started
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