MC9S12ZVM Family Reference Manual Rev. 1.3
Freescale Semiconductor
83
Chapter 2
Port Integration Module (S12ZVMPIMV1)
Revision History
2.1
Introduction
2.1.1
Overview
The S12ZVM-family port integration module 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 document covers:
•
2-pin port E associated with the external oscillator
•
4-pin port T associated with either combination of 4 TIM channels, 3 PWM channels of PMF, 1
SPI and 1 SCI
•
6-pin port S with pin interrupts and key-wakeup function; associated with 1 MSCAN, 1 SCI and 1
SPI modules
•
3-pin port P with pin interrupts and key-wakeup function; associated with
— IRQ, XIRQ interrupt inputs
— 3 PWM channels of PMF
— ECLK output
•
9-pin port AD associated with 9 ADC channels shared among two ADC and two GDU AMP
modules - inputs can be used as an external interrupt and key-wakeup source
Most I/O pins can be configured by register bits to select data direction and to enable and select pullup or
pulldown devices.
Rev. No.
(Item No.)
Date (Submitted
By)
Substantial Change(s)
V01.00
11 Nov 2012
• Initial release
V01.01
20 Feb 2013
• Removed VRL
• Corrected typo
