RapidIO II Intel® FPGA IP User Guide

ID 683444
Date 9/28/2020
Public
Document Table of Contents

3.3.2. Doorbell Module Settings

The Doorbell module settings specify properties of the Doorbell Logical layer module.

If you turn on Enable Doorbell support, a Doorbell module is configured in your RapidIO II IP core to support generation of outbound RapidIO DOORBELL messages and reception and processing of inbound DOORBELL messages.

If this parameter is turned off, received DOORBELL messages are routed to the Avalon- ST pass-through interface if it is enabled, or are silently dropped if the pass-through interface is not enabled.

If the Doorbell module and the I/O slave module are both enabled, the Prevent doorbell messages from passing write transactions parameter is available. This parameter controls support for preserving transaction order between DOORBELL messages and I/O write request transactions sent to the IP core by user logic.

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