Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs

ID 814346
Date 7/19/2024
Public

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5.6.5.12.1. Reset Requirements

All internal resets are active simultaneously for some period. The reset module of the controller takes care of this by asynchronously propagating vcc_reset_n to all the internal resets in the design.

For the external USB 3.1 and USB 2.0 PHY. the controller provides pipe_reset_n and usb2phy_reset signals to achieve these requirement.

The controller drives the pipe_reset_n and usb2phy_reset outputs active as long as vcc_reset_n and ctrlr_pipe_reset_n are active, and phy_rst_stgg_pulse is triggered.