Mailbox Client Intel® FPGA IPs User Guide

ID 683290
Date 7/08/2024
Public
Document Table of Contents

1.4.1. Clock and Reset Interfaces

Table 4.  Clock and Reset Interfaces
Signal Role Width Direction Description
clk 1 Input Input clock to clock the Mailbox Client Intel® FPGA IP. The maximum frequency is 250 MHz.
reset 1 Input Reset that resets the Mailbox Client Intel® FPGA IP.

To reset the IP, assert the reset signal high for at least 2 clk cycles.

To ensure the Mailbox Client Intel® FPGA IP functions correctly when the device enters user mode, your design must include the Reset Release Intel® FPGA IP to hold the reset until the FPGA fabric entered user mode. Intel recommends using a reset synchronizer when connecting the user reset or output of the Reset Release Intel® FPGA IP to the reset port of the Mailbox Client Intel® FPGA IP. To implement the reset synchronizer, use the Reset Bridge Intel® FPGA IP available in the Platform Designer.
Note: For IP instantiation and connection guidelines in the Platform Designer, refer to the Required Communication and Host Components for the Remote System Update Design Example figure in the Stratix® 10 Configuration User Guide.
Note: For IP instantiation guidelines, refer to the respective device's Configuration User Guide.
irq 1 Output Interrupt signal. Drives the value of the AND of the interrupt status and interrupt enable registers.