■ DESCRIPTION
The MB90860A-series is Fujitsu 16-bit general-purpose microcontroller which enhances each kind of timers and communication macros. With the new 0.35 µm CMOS technology, Fujitsu now offers 128 Kbytes on-chip FLASHROM program memory. An internal voltage booster removes the necessity for a second programming voltage.

■ FEATURES
• Clock
    • Built-in PLL clock frequency multiplication circuit
    • Selection of machine clocks (PLL clocks) is allowed among frequency division by two on oscillation clock, and multiplication of 1 to 6 times of oscillation clock (for 4 MHz oscillation clock, 4 MHz to 24 MHz).
    • Operation by sub-clock (up to 50 kHz : 100 kHz oscillation clock divided by two) is allowed. (devices without S-suffix only)
    • Minimum execution time of instruction : 42 ns (when operating with 4-MHz oscillation clock, and 6-time multiplied PLL clock).
• 16 Mbyte CPU memory space
    • 24-bit internal addressing
• 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
• Powerful interrupt function
    • Powerful 8-level, 34-condition interrupt feature
    • Up to 16 external interrupts are supported
• Automatic data transfer function independent of CPU
    • Extended intelligent I/O service function (EI2OS) : up to 16 channels
    • DMA : up to 16 channels
• Low power consumption (standby) mode
    • Sleep mode (a mode that halts CPU operating clock)
    • Time-base timer mode (a mode that operates oscillation clock, sub clock, time-base timer and clock timer only)
    • 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
• Process
    • CMOS technology
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