AN 728: I/O PLL Reconfiguration and Dynamic Phase Shift for Intel® Arria® 10 and Intel Cyclone® 10 GX Devices

ID 683845
Date 8/08/2022
Public
Document Table of Contents

Avalon® Memory-Mapped Interface Ports in the PLL Reconfig IP Core

Table 1.   Avalon® Memory-Mapped Interface Ports in the PLL Reconfig IP Core
Port Direction Description
mgmt_clk Input Dynamic reconfiguration clock that drives the PLL Reconfig IP core. This port must be connected to a valid clock source. The maximum input clock frequency is 100 MHz. This clock can be an independent clock source.
mgmt_reset Input Active high signal. This port is synchronous with mgmt_clk. Assert this reset input to clear all the data in the PLL Reconfig IP core.
mgmt_waitrequest Output This port goes high when PLL reconfiguration process started and remains high during PLL reconfiguration. After PLL reconfiguration process completed, this port goes low.
mgmt_read Input Active high signal. Asserts to indicate a read operation.
mgmt_write Input Active high signal. Asserts to indicate a write operation.
mgmt_readdata[31..0] Output Reads data from this port when mgmt_read signal is asserted.
mgmt_address[8..0] Input Specifies the address of the data bus for a read or write operation.
mgmt_writedata[31..0] Input Writes data to this port when mgmt_write signal is asserted.
mgmt_byteenable[3..0] Input Optional. Permits write operation to the PLL Reconfig IP core from an Avalon® memory-mapped interface with data bus width wider than 32 bits.
reconfig_from_pll[63..0] Input Bus that connects to reconfig_from_pll[63..0] bus in the IOPLL IP core.
reconfig_to_pll[63..0] Output Bus that connects to reconfig_to_pll[63..0] bus in the IOPLL IP core.