■ DESCRIPTION
The MB90540/545 series with FULL-CAN*1 and FLASH ROM is specially designed for automotive and industrial applications. Its main features are two on board CAN Interfaces (one for MB90V545 series) , which conform to V2.0 Part A and Part B, supporting very flexible message buffer scheme and so offering more functions than a normal full CAN approach. The instruction set by F2MC-16LX CPU core inherits an AT architecture of the F2MC*2 family with additional instruction sets for high-level languages, extended addressing mode, enhanced multiplication/division instructions, and enhanced bit manipulation instructions.The micro controller has a 32-bit accumulator for processing long word data.The MB90540/545 series has peripheral resources of 8/10-bit A/D converters, UART (SCI) , extended I/O serial interfaces, 8/16-bit timer, I/O timer (input capture (ICU) , output compare (OCU) ) .

■ FEATURES
• Clock
    Embedded PLL clock multiplication circuit
    Operating clock (PLL clock) can be selected from : divided-by-2 of oscillation or one to four times the oscillation
    Minimum instruction execution time : 62.5 ns (operation at oscillation of 4 MHz, four times the oscillation clock)
    Subsystem Clock : 32 kHz
• Instruction set to optimize controller applications
    Rich data types (bit, byte, word, long word)
    Rich addressing mode (23 types)
    Enhanced signed multiplication/division instruction and RETI instruction functions
    Enhanced precision calculation realized by the 32-bit accumulator
• Instruction set designed for high level language (C language) and multi-task operations
    Adoption of system stack pointer
    Enhanced pointer indirect instructions
    Barrel shift instructions
• Program patch function (for two address pointers)
• Enhanced execution speed : 4-byte Instruction queue
• Enhanced interrupt function : 8 levels, 34 factors
• Automatic data transmission function independent of CPU operation
    Extended intelligent I/O service function (EI2OS)
• Embedded ROM size and types
    Mask ROM : 256 Kbytes / 64 Kbytes / 128 Kbytes
    Flash ROM : 128 Kbytes/256 Kbytes
    Embedded RAM size : 2 Kbytes/4 Kbytes/6 Kbytes/8 Kbytes (evaluation chip)
• Flash ROM
    Supports automatic programming, Embedded Algorithm TM*
    Write/Erase/Erase-Suspend/Resume commands
    A flag indicating completion of the algorithm
    Hard-wired reset vector available in order to point to a fixed boot sector in Flash Memory
    Erase can be performed on each block
    Block protection with external programming voltage
• Low-power consumption (stand-by) mode
    Sleep mode (mode in which CPU operating clock is stopped)
    Stop mode (mode in which oscillation is stopped)
    CPU intermittent operation mode
    Clock mode
    Hardware stand-by mode
• Process
    0.5 µm CMOS technology
• I/O port
    General-purpose I/O ports : 81 ports
• Timer
    Watchdog timer : 1 channel
    8/16-bit PPG timer : 8/16-bit × 4 channels
    16-bit re-load timer : 2 channels
• 16-bit I/O timer
    16-bit free-run timer : 1 channel
    Input capture : 8 channels
    Output compare : 4 channels
• Extended I/O serial interface : 1 channel
• UART 0
    With full-duplex double buffer (8-bit length)
    Clock asynchronized or clock synchronized (with start/stop bit) transmission can be selectively used.
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