Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs

ID 814346
Date 4/01/2024
Public

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7.6.12. PSI Clock Group (to the SDM)

The PSI clock tree has a ping-pong counter and a clock gate as shown in the following diagram.

Figure 266. PSI Clock Group (to the SDM) Block Diagram

The following table shows the registers used to program the clocks.

Table 313.  Programming Clock Registers
Clock Name *.src *.cnt (n+1 divider) *.div (2^n divider) Clock Gate (enable)
psi_ref_clk

ctlgrp.psirefctr.src

= 0 (Main_PLL_C1)

= 1 (Peri_PLL_C3)

ctlgrp.psirefctr.cnt --- perpllgrp.en.psiclken