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

Byte Data Link
MC9S12DP256 — Revision 1.1
Byte Data Link Controller Module
“SAE Standard J1850 Class B Data Communications Network Interface”
prior to proceeding with this specification.
The BDLC module is designed in a modular structure for use as an IP
block.
Features
Features of the BDLC module include the following:
• SAE J1850 Class B Data Communications Network Interface
Compatible and ISO Compatible for Low-Speed (≤125 Kbps)
Serial Data Communications in Automotive Applications
• 10.4 Kbps Variable Pulse Width (VPW) Bit Format
• Digital Noise Filter
• Collision Detection
• Hardware Cyclical Redundancy Check (CRC) Generation and
Checking
• Block Mode Receive and Transmit Supported
• 4X Receive Mode, 41.6 Kbps, Supported
• Digital Loopback Mode
• In-Frame Response (IFR) Types 0, 1, 2, and 3 Supported
• Dedicated Register for Symbol Timing Adjustments
• IP Bus Interface
• Power-Saving Stop and Wait Modes with Automatic Wakeup on
Network Activity
• Polling and CPU Interrupt Generation with Vector Lookup
Available
Freescale Semiconductor, I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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