MPC5553/MPC5554 Microcontroller Reference Manual, Rev. 5
Freescale Semiconductor
Chapter 6
System Integration Unit (SIU)
6.1 Introduction
This chapter describes the MPC5553/MPC5554 system integration unit (SIU), which controls MCU reset
configuration, pad configuration, external interrupt, general-purpose I/O (GPIO), internal peripheral
multiplexing, and the system reset operation.
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