PXN20RM Datasheet, PDF (184/1376 Pages) Freescale Semiconductor, Inc – PXN20 Microcontroller

System Integration Unit (SIU)
Pad Configuration
Power-on
Reset
Detection
•••
Reset
Controller
External
IRQ/
Edge
•••
•••
Detects
SIU
Registers
&
NMI
Control
Reset
Configuration
•••
•••
GPIO
•••
IRQ Inputs &
ADC Triggers
IMUX
Pad
Interface/
Pad
Ring
RESET
PC5 (NMI[0] Z6)
PC6 (NMI[1] Z0)
PK9 (BOOTCFG)
PA[0:15]
•••
PH[0:15]
PJ[0:15]
PK[0:10]
Peripheral
I/O Channels
Figure 8-1. SIU Block Diagram
8.1.2 Features
Features of the SIU include the following:
• System configuration
— MCU reset configuration via external pins
— Pad configuration control
• System reset monitoring and generation
PXN20 Microcontroller Reference Manual, Rev. 1
8-2
Freescale Semiconductor