MSM9225B Datasheet, PDF (1/16 Pages) OKI electronic componets – CAN (Controller Area Network) Controller

FEDL9225B-03
1_{Semiconductor}
MSM9225B
CAN (Controller Area Network) Controller
This version: Aug. 2001
Previous version: Feb. 2001
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)
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