■ DESCRIPTION
MB90860E-series with Flash ROM is especially designed for automotive and other industrial applications. With the new 0.35 µm CMOS technology, Fujitsu now offers on-chip Flash ROM program memory up to 512 Kbytes.
The power supply (3 V) is supplied to the internal MCU core from an internal regulator circuit. This creates a major advantage in terms of EMI and power consumption.
The internal PLL clock frequency multiplier provides an internal 42 ns instruction cycle time from an external 4 MHz clock.
The unit features an 8 channel Output Compare Unit and 8 channel Input Capture Unit with 2 separate 16-bit free running timers. 4 UARTs constitute additional functionality for communication purposes.

■ FEATURES
• CPU
    • Instruction system best suited to controller
    • Wide choice of data types (bit, byte, word, and long word)
    • Wide choice of addressing modes(23 types)
    • Enhanced multiply-divide instructions and RETI instructions
    • Enhanced high-precision computing with 32-bit accumulator
    • Instruction system compatible with high-level language (C language) and multitask
    • Employing system stack pointer
    • Enhanced various pointer indirect instructions
    • Barrel shift instructions
    • Increased processing speed
    • 4-byte instruction queue
• Serial interface
    • UART (LIN/SCI) : up to 4 channels
    • Equipped with full-duplex double buffer
    • Clock-asynchronous or clock-synchronous serial transmission is available
    • I2C interface* : up to 2 channels
    • Up to 400 Kbits/s transfer rate
• Interrupt controller
    • Powerful interrupt function
    • Powerful 8-level, 34-condition interrupt feature
    • Up to 16 external interrupts are supported
    • Automatic data transfer function independent of CPU
    • Expanded intelligent I/O service function (EI2OS) : up to 16 channels
• I/O port
    • General-purpose input/output port (CMOS output)
        - 80 ports (devices without S-suffix)
        - 82 ports (devices with S-suffix)
• 8/10-bit A/D converter
    • 8/10-bit A/D converter : 24 channels
    • Resolution is selectable between 8-bit and 10-bit.
    • Activation by external trigger input is allowed.
    • Conversion time : 3 µs (at 24-MHz machine clock, including sampling time)
    • Program patch function
• Timer
    • Time-base timer, clock timer, watchdog timer : 1 channel
    • 8/16-bit PPG timer : 8-bit × 16 channels, or 16-bit × 8 channels
    • 16-bit reload timer : 4 channels
    • 16-bit input/output timer
        - 16-bit free run timer : 2 channel
        (FRT0 : ICU 0/1/2/3, OCU 0/1/2/3, FRT1 : ICU 4/5/6/7, OCU 4/5/6/7)
        - 16-bit input capture: (ICU) : 8 channels
        - 16-bit output compare : (OCU) : 8 channels
• Variety of mode
    • Low power consumption (standby) mode
    • Sleep mode (a mode that halts CPU operating clock)
    • Main timer mode (time-base timer mode that is transferred from main clock mode)
    • PLL timer mode (time-base timer mode that is transferred from PLL clock mode)
    • Watch mode (a mode that operates sub clock and clock timer only)
    • Stop mode (a mode that stops oscillation clock and sub clock)
    • CPU blocking operation mode
• Technology
    • 0.35 µm CMOS technology