PXD20RM Datasheet, PDF (1468/1628 Pages) Freescale Semiconductor, Inc – PXD20 Microcontroller

SIUL module
Pad config (IOMUXC)
185¹
Pad Cfg (PCRs)
IPS
master
GPIO functionality
Data
Pad input
185¹
185¹
IO
MUX
185¹
Pads
Interrupt functionality
24
Interrupt
- Configuration ₄
- Glitch filter
IPS
bus
Interrupt
Controller
Figure 43-1. System Integration Unit Lite block diagram
1 _{Up to 128 pins in the 176-pin package; up to 150 pins in the 208-pin package; up to 177 pins on the 416-pin package}
43.3 Features
The System Integration Unit Lite supports these distinctive features:
• GPIO
— GPIO function on up to 185 unique I/O pins
— Dedicated input and output registers for each GPIO pin
• External interrupts
— 3 system interrupt vectors for up to 24 interrupt sources
— 16 programmable digital glitch filters
— Independent interrupt mask
43-2
PXD20 Microcontroller Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
Freescale Semiconductor