Reconfiguration router – Altera SDI II MegaCore User Manual

Page 32

Since only one transceiver register can be accessed at a time, the whole process repeats when reconfi‐

guring other registers.
For multiple SDI channels reconfiguration, the logical channel number needs to be set appropriately for

each channel and reconfiguration interface. For example, in the design example and simulation testbench

figure, there are one SDI duplex, one SDI RX, and one SDI TX block. The number of reconfiguration

interface for SDI duplex is 2 (one for channel and one for TX PLL), for SDI RX is 1 (for channel), for SDI

TX is 2 (one for channel and one for TX PLL). The total number of reconfiguration interface required in

the transceiver reconfiguration controller is 5.
The table below lists the channel and transceiver reconfiguration controller interface numbers.
The logical channel number for the receiver in SDI duplex is 0 and the logical channel number for SDI RX

is 2. The generated example design entity demonstrates this interface connection.

Table 3-6: Channel Numbers Setting for Multiple SDI Channels Reconfiguration

SDI Block

SDI Channel Number

Transceiver Reconfiguration Controller Interface Number

SDI Duplex

0 and 1

SDI RX

SDI TX

3 and 4

For more information about the logical channel number, refer to the Transceiver Reconfiguration

Controller IP Core Overview chapter of the Altera Transceiver PHY IP Core User Guide.

Related Information

•

Reconfiguration Management Parameters

on page 3-26

Table below lists the parameters for reconfiguration management.

•

Modifying the Reconfiguration Management

on page 3-20

•

Altera Transceiver PHY IP Core User Guide

For more information about the logical channel number.

Reconfiguration Router

The reconfiguration router (

sdi_ii_ed_reconfig_router.v

) connects multiple SDI instances to the reconfigu‐

ration management and transceiver reconfiguration controller blocks. The reconfiguration router receives

all the interface signals between the transceiver reconfiguration controller and reconfiguration

management, as well as SDI instances, and transmits the signals to their respective destinations.
The reconfiguration router converts reconfiguration related interface signals of multiple SDI instances

and user interface to a single-wide data bus for the reconfiguration management and transceiver reconfi‐

guration controller blocks. You can bypass this component if you want to implement designs that expands

to more channels. The details are described in the Expanding to Multiple Channels section.

Related Information

•

Reconfiguration Router Signals

on page 3-27

Table below lists the signals for the reconfiguration router.

•

Modifying the Reconfiguration Router

on page 3-21

UG-01125