mc9s12vr48 Freescale Semiconductor, Inc, mc9s12vr48 Datasheet - Page 48

• Manufacturer Part Number: mc9s12vr48
• Description: S12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Port Integration Module (S12VRPIMV2)
Most I/O pins can be configured by register bits to select data direction and to enable and select pullup or
pulldown devices.
2.1.2
The PIM includes these distinctive registers:
A standard port pin has the following minimum features:
Optional features supported on dedicated pins:
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Two selectable output drive strengths
Open drain for wired-or connections
— 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
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
Data registers and data direction registers for Ports E, T, S, P and AD when used as general-purpose
I/O
Control registers to enable/disable pull devices and select pullups/pulldowns on Ports T, S, P, AD
on per-pin basis
Single control register to enable/disable pullups on Port E on per-port basis and on BKGD pin
Control registers to enable/disable open-drain (wired-or) mode on Port S
Control register to enable/disable reduced output drive on Port P high-current pins
Interrupt flag register for pin interrupts on Port P, L and AD
Control register to configure IRQ pin operation
Control register to enable ECLK clock output
Routing registers to support module port relocation and control internal module routings:
— PWM and ETRIG to alternative pins
— SPI SS and SCK to alternative pins
— SCI1 to alternative pins
— HSDRV and LSDRV control selection from PWM, TIM or related register bit
— Various SCI0-LINPHY routing options supporting standalone use and conformance testing
— Optional LINPHY to TIM link
— Optional HVI to ADC link
Input/output selection
5 V output drive
5 V digital and analog input
Input with selectable pullup or pulldown device
external devices such as Hall sensors
Features
MC9S12VR Family Reference Manual,
Preliminary - Subject to Change Without Notice
Rev. 2.2
Freescale Semiconductor