PC912XDP512F0MPVR datasheet(1028/1348 Pages) FREESCALE

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Chapter 24 DG128 Port Integration Module (S12XDG128PIMV2)

MC9S12XDP512 Data Sheet, Rev. 2.21

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24.0.6.4

Reduced Drive Register

If the pin is used as an output this register allows the configuration of the drive strength.

24.0.6.5

Pull Device Enable Register

This register turns on a pull-up or pull-down device. It becomes active only if the pin is used as an input

or as a wired-OR output.

24.0.6.6

Polarity Select Register

This register selects either a pull-up or pull-down device if enabled. It becomes active only if the pin is

used as an input. A pull-up device can be activated if the pin is used as a wired-OR output. If the pin is

used as an interrupt input this register selects the active interrupt edge.

24.0.6.7

Wired-OR Mode Register

If the pin is used as an output this register turns off the active high drive. This allows wired-OR type

connections of outputs.

24.0.6.8

Interrupt Enable Register

If the pin is used as an interrupt input this register serves as a mask to the interrupt flag to enable/disable

the interrupt.

24.0.6.9

Interrupt Flag Register

If the pin is used as an interrupt input this register holds the interrupt flag after a valid pin event.

24.0.6.10 Module Routing Register

This register supports the re-routing of the CAN0, CAN4, SPI0, SPI1, and SPI2 pins to alternative ports.

This allows a software re-configuration of the pinouts of the different package options with respect to

above peripherals.

NOTE

The purpose of the module routing register is to provide maximum

ﬂexibility for derivatives with a lower number of MSCAN and SPI modules.

PC912XDP512F0MPVR 데이터시트(PDF) 1028 Page - Freescale Semiconductor, Inc