MC9S12VR-Family - Data Sheet - Freescale Semiconductor

Chapter 2
Port Integration Module (S12VRPIMV2)
Revision History
Rev. No.
(Item No.)
Date
(Submitted By)
2.1 Introduction
2.1.1 Overview
Sections
Affected
Substantial Change(s)
V02.02 11 Apr 2011 • Added stop mode condition to PTTEL and PTPSL
• Minor corrections after review
V02.03 18 Apr 2011 • Minor corrections after review
V02.04 24 May 2012 • Corrected PTAENL bit value in PTIL bit description
The S12VR port integration module (PIM) establishes the interface between the peripheral modules and
the I/O pins for all ports. It controls the electrical pin properties as well as the signal prioritization and
multiplexing on shared pins.
This section covers:
• 2-pin port E associated with the external oscillator
• 4-pin port T associated with 4 TIM channels and 2 PWM channels
• 6-pin port S associated with 2 SCI and 1 SPI
• 6-pin port P with pin interrupts and wakeup function; associated with
— IRQ, XIRQ interrupt inputs
— Six PWM channels with two of those capable of driving up to 10 mA
— One output with over-current protection and interrupt capable of supplying up to 20 mA to
external devices such as Hall sensors
• 6-pin port AD with pin interrupts and wakeup function; associated with 6 ADC channels
• 4-pin port L with pin interrupts and wakeup function; associated with 4 high-voltage inputs for
digital or analog use with optional voltage divider bypass and open input detection
Most I/O pins can be configured by register bits to select data direction and to enable and select pullup or
pulldown devices.
MC9S12VR Family Reference Manual, Rev. 2.8
Freescale Semiconductor 47