Freescale Semiconductor MPC5604B - Chapter 3 INTC: Interrupt Controller; 1. Introduction

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Chapter 2
SIUL: System Integration Unit Line
1.
Introduction
Figure 20 : SIUL Block Diagram (Reference Manual Rev8 – Fig. 19-1)
This module is used for pad management and configuration. It can also process external
interrupts that can be triggered on rising/falling edges. On TRK-MPC5604B there are 123 pads
with GPIO functionality and 16 with external interrupt ability.
2.
Pad configuration
This functionality controls pad multiplexing on a low level to set pads as inputs or outputs with
additional parameters that are showed on the figure below.
Figure 21 : Pad Architecture (Freescale Lecture)