GENERAL DESCRIPTION
The MSM9225B is a microcontroller peripheral LSI which conforms to the CAN protocol for high-speed LANs in automobiles.

FEATURES
• Conforms to CAN protocol specification (Bosch, V2.0 part B/Active)
• Maximum of 1 Mbps bit rate
• Communication method:
    • Transmission line is bi-directional, two-wire serial communication
    • NRZ (Non-Return to Zero) system using bit stuff function
    • Multi-master system
    • Broadcast system
• Message boxes:
    • Up to 16 message boxes can be used, and messages up to 8 bytes long can be transmitted or received for each message box.
    • Number of received messages can be extended by group message function (up to 2 groups can be set)
    • Overwrite flag is provided
• Priority control by identifier
    • 2032 types in standard format, 2032 × 218 types in extended format
• Microcontroller interface
    • Corresponding to both parallel and serial interface
        Parallel interface: Separate address/data bus type (with address latch signal/no address latch signal) and multiplexed address/data bus type
        Serial interface: Synchronous communication type
    • Three interrupt sources: Transmission/receive/error
• Error control:
    • Bit error/stuff error/CRC error/form error/acknowledgment error detection functions
    • Retransmission/error status monitoring function when error occurs
    • Bit error flag/stuff error flag/CRC error flag/form error flag/acknowledge error flag are provided
• Communication control by remote data request function
• Sleep/Stop mode function
• Supply voltage: 5 V±10%
• Operating temperature: –40 to +125°C
• Package: 44-pin plastic QFP (QFP44-P-910-0.80-2K) (Product name: MSM9225BGA-2K)