Altera Serial Digital Interface (SDI) MegaCore Function - Manual (Page 86)

3–56 Chapter 3: Functional Description
Parameters
Serial Digital Interface (SDI) MegaCore Function February 2013 Altera Corporation
User Guide
Parameters
The parameters can only be set in the MegaWizard Plug-In Manager (refer to
“Parameterizing” on page 2–5 ).
Table 3–20 lists the protocol options.
Table 3–21 lists the transceiver options.
Table 3–20. Protocol Options
Parameter Value Description
Video standard
SD-SDI, HD-SDI, 3G-SDI,
HD-SDI dual link, dual or
triple standard SDI
Selection of HD-SDI or SD-SDI.
Selecting HD-SDI switches in LN insertion and extraction and CRC
generation and extraction blocks; selecting SD-SDI switches out LN
insertion and extraction and CRC generation and extraction blocks.
Selecting SD-SDI also includes oversampling logic.
Selecting dual or triple standard SDI includes the processing blocks for
both SD-SDI and HD-SDI standards. In addition, logic for bypass paths
and logic to automatically switch between the input standards is
included.
Interface settings
Bidirectional, receiver,
transmitter
Selects the ports to be receiver, transmitter, or bidirectional. It
switches in or out the receiver and transmitter supporting logic
appropriately.
The same setting is applied to all channels in the variation.
If you want some to be transmitter and some to be duplex, simply
create two different MegaCore variations.
Table 3–21. Transceiver Options
Parameter Value Description
Transceiver and
protocol
Generate transceiver and
protocol blocks, generate
transceiver block only, or
generate protocol block only
Selects transceiver or protocol blocks or both. When non-GX device is
chosen, only SD-SDI protocol block is permitted. If you want to
generate HD-SDI or 3G-SDI protocol block, you must select a GX
device.
Use soft logic for
transceiver
On or off
Uses soft logic to implement the transceiver logic, rather than using
Stratix II GX, Stratix IV or Stratix GX transceivers. SD-SDI only.
For example, if you run out of hard transceivers in your device, you
can implement the function in soft logic. If you have spare transceivers
in a device, you may wish to use them.
Starting channel
number
0, 4, 8, ..., 156
Dual or triple standard only. Each dual or triple standard SDI must
have a unique starting channel number. This parameter is not
applicable for Stratix V, Arria V, and Cyclone V devices.