Datasheet
Table Of Contents
- List of Sections
- Table of Contents
- General Description
- Central Processing Unit (CPU)
- Pinout and Signal Description
- System Configuration
- Registers
- Operating Modes
- Resource Mapping
- Bus Control and Input/Output
- Resets and Interrupts
- Voltage Regulator (VREG)
- Flash EEPROM 256K
- EEPROM 4K
- Port Integration Module
- Clocks and Reset Generator (CRG)
- Pulse Width Modulator (PWM)
- Enhanced Capture Timer (ECT)
- Serial Communications Interface (SCI)
- Serial Peripheral Interface (SPI)
- Inter-IC Bus (IIC)
- MSCAN
- Analog to Digital Converter
- Byte Data Link Controller Module
- Contents
- Overview
- Features
- Block Diagram
- Register Map
- Functional Description
- Register Descriptions
- External Pin Descriptions
- Reset Initialization/Basic Operation
- Transmitting A Message
- Receiving A Message
- Transmitting An In-Frame Response (IFR)
- Receiving An In-Frame Response (IFR)
- Special BDLC Operations
- Modes of Operation
- Interrupt Operation
- Low Power Options
- Background Debug Module (BDM)
- Breakpoint (BKP) Module
- Revision History
- Glossary
- Literature Updates

Port Integration Module
MC9S12DP256 — Revision 1.1
Port Integration Module
PPSH[7:0] — Polarity Select Port H
1 = Rising edge on the associated port H pin sets the associated
flag bit in the PIFH register.
A pull-down device is connected to the associated port H pin,
if enabled by the associated bit in register PERH and if the port
is used as input.
0 = Falling edge on the associated port H pin sets the associated
flag bit in the PIFH register.
A pull-up device is connected to the associated port H pin, if
enabled by the associated bit in register PERH and if the port
is used as input.
Port H Interrupt
Enable Register
(PIEH)
Read: Anytime.
Write: Anytime.
This register disables or enables on a per pin basis the edge sensitive
external interrupt associated with port H.
PIEH[7:0] — Interrupt Enable Port H
1 = Interrupt is enabled.
0 = Interrupt is disabled (interrupt flag masked).
Address Offset: $0026
Bit 7 654321Bit 0
Read:
PIEH7 PIEH6 PIEH5 PIEH4 PIEH3 PIEH2 PIEH1 PIEH0
Write:
Reset: 00000000
= Reserved or unimplemented
Freescale Semiconductor, I
Freescale Semiconductor, Inc.
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Go to: www.freescale.com
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