Processor Communications

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

Document ID
UG1085
Release Date
2022-09-15
Revision
2.3 English

Table: Processor Communications lists the processor communications signals. See Table: PL Event Signals in PS-PL AXI Interfaces for additional information.

Table 2-5:      Processor Communications

Signal Name

Count

Source

Destination

Description

P2F PMU signal

32 signals

LPD

PL

GPO3 register signals to PL.(1)

F2P PMU signal

32 signals

PL

LPD

GPI3 register signals from PL.(1)

APU wake up

2 signals

PL

FPD

APU WFE and WFI event and interrupt status.

IRQ_P2F_PL_IPIx

4 channels

LPD

PL

IPI interrupts to PL targets.

IRQ_F2P_PL_IPIx

7 channels

PL

LPD

IPI interrupts to PS targets.

PL IRQs

16 signals

PL

LPD, FPD

IRQ signals from PL to GICs.

RPU CPU IRQs

4 signals

PL

LPD

FIQ, IRQ interrupts for each core.

APU CPU IRQs

8 signals

PL

FPD

FIQ, IRQ interrupts for each core.

PS System IRQs

>100 signals

PS

PL

PS generated interrupts to GICs and PL.

LPD IOP interrupts

100

LPD

PL

From peripherals to GICs and PL. See Table: System Interrupts.

FPD IOP interrupts

64

FPD

PL

From peripherals to GICs and PL. See Table: System Interrupts.

Events

~

LPD, FPD

PL

Events from RPU and APU.

Notes:

1.Software environments might assign meaning to the GPI and GPO signals of the PMU.