NXP Semiconductors PXN2020 - Chapter 22 Periodic Interrupt Timer (PIT); 22.1 Introduction; 22.1.1 Block Diagram

PXN20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor 22-1
Chapter 22
Periodic Interrupt Timer (PIT)
22.1 Introduction
The Periodic Interrupt Timer (PIT) is an array of timers that can be used to initiate interrupts and trigger
DMA channels.
22.1.1 Block Diagram
A simplified block diagram of the PIT illustrates the functionality and interdependence of major blocks
(see Figure 22-1).
Figure 22-1. PIT Block Diagram
Timer 1
Timer 8
Timer 2
.
.
.
PIT
Registers
Peripheral
interrupts
timeout
load_value
Peripheral
PIT
.
.
.
triggers
bus
bus clock