MC68HC08AS20 Datasheet, PDF (319/386 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

20.2 Introduction
The byte data link controller (BDLC) provides access to an external
serial communication multiplex bus, operating according to the SAE
J1850 protocol.
20.3 Features
Features of the BDLC module include:
• 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
• Two Power-Saving Modes with Automatic Wakeup on Network
Activity
• Polling or CPU Interrupts
• Block Mode Receive and Transmit Supported
• 4X Receive Mode, 41.6 kbps, Supported
• Digital Loopback Mode
• Analog Loopback Mode
• In-Frame Response (IFR) Types 0, 1, 2, and 3 Supported
MC68HC08AS20 — Rev. 4.1
Freescale Semiconductor
Advance Information
319