MC9S12HY64 Datasheet, PDF (130/792 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

Port Integration Module (S12HYPIMV1)
2.4.2.7 Wired-or mode register (WOMx)
If the pin is used as an output this register turns off the active high drive. This allows wired-or type
connections of outputs.
2.4.2.8 Interrupt enable register (PIEx)
If the pin is used as an interrupt input this register serves as a mask to the interrupt flag to enable/disable
the interrupt.
2.4.2.9 Interrupt flag register (PIFx)
If the pin is used as an interrupt input this register holds the interrupt flag after a valid pin event.
2.4.2.10 Slew Rate Register(SRRx)
2.4.2.11 This register select the either slew rate enable or slew rate disable on the Motor dirverpad.
.Module routing register (PTxRRx)
This register allows software re-configuration of the pinouts of the different package options for specific
peripherals:
• PTxRRx supports the re-routing of the PWM channels to alternative ports
2.4.3
Pins and Ports
NOTE
Please refer to the device pinout section to determine the pin availability in
the different package options.
2.4.3.1 BKGD pin
The BKGD pin is associated with the BDM module.
During reset, the BKGD pin is used as MODC input.
2.4.3.2 Port AD
This port is associated with the ATD.
2.4.3.3 Port A, B
These ports are associated with LCD, IRQ, XIRQ and API_EXTCLK
2.4.3.4 Port H
This port is associated with LCD/SPI/IIC.
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
130
Freescale Semiconductor