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

General Description
MC9S12DP256 — Revision 1.1
General Description
Features
• 16-bit STAR12 CPU
– Upward compatible with M68HC11 instruction set
– Interrupt stacking and programmer’s model identical to
M68HC11
– 20-bit ALU
– Instruction pipe
– Enhanced indexed addressing
• Multiplexed External Bus
• Memory
– 256K byte Flash EEPROM
– 4.0K byte EEPROM
– 12.0K byte RAM
• Two 8 channel Analog-to-Digital Converters
– 10-bit resolution
• Five 1M bit per second, CAN 2.0 A, B software compatible
modules
– Four receive and three transmit buffers
– Flexible identifier filter programmable as 2 x 32 bit, 4 x 16 bit or
8 x 8 bit
– Four separate interrupt channels for Rx, Tx, error and wake-up
– Low-pass filter wake-up function
– Loop-back for self test operation
– Time-stamping capabilities for network synchronization
• 8 channel IC/OC Enhanced Capture Timer
• Byte Data Link Controller (BDLC)
• Inter-IC Bus (IIC)
Freescale Semiconductor, I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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