mc9s12vr48 Freescale Semiconductor, Inc, mc9s12vr48 Datasheet - Page 92

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

Port Integration Module (S12VRPIMV2)
2.4.2.7
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
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
If the pin is used as an interrupt input this register holds the interrupt flag after a valid pin event.
2.4.2.10
Routing registers allow software re-configuration of specific peripheral inputs and outputs:
2.4.3
2.4.3.1
The BKGD pin is associated with the BDM module.
During reset, the BKGD pin is used as MODC input.
2.4.3.2
This port is associated with the CPMU OSC.
Port E pins PE1-0 can be used for general-purpose or with the CPMU OSC module.
2.4.3.3
This port is associated with TIM, routed SCI-LINPHY interface and routed SPI.
Port T pins can be used for either general-purpose I/O or with the channels of the standard TIM, SPI, or
SCI and LINPHY subsystems.
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MODRR0 selects the driving source of the HSDRV and LSDRV pins
MODRR1 selects optional pins for PWM channels and ETRIG inputs
MODRR2 supports options to test the internal SCI-LINPHY interface signals
Pins and Ports
Wired-or mode register (WOMx)
Interrupt enable register (PIEx)
Interrupt flag register (PIFx)
Module routing register (MODRRx)
BKGD pin
Port E
Port T
Please refer to the device pinout section to determine the pin availability in
the different package options.
MC9S12VR Family Reference Manual,
Preliminary - Subject to Change Without Notice
NOTE
Rev. 2.2
Freescale Semiconductor