■ DESCRIPTION The MB90945 series with one FULL-CAN* interface and FLASH ROM is especially designed for automotive HVAC applications. Its main feature is the on board CAN* Interface, which conform to V2.0 Part A and Part B, while supporting a very flexible message buffer scheme and so offering more functions than a normal FULL-CAN* approach. With the new 0.35 µm CMOS technology, Fujitsu now offers on-chip FLASH-ROM program memory up to 384 K bytes. An internal voltage booster removes the necessity for a second programming voltage. ■ FEATURES • 16-bit core CPU; 4 MHz external clock (24 MHz internal, 42 ns instr. cycle time) • New 0.35 µm CMOS Process Technology • Internal voltage regulator supports 3 V MCU core, offering low EMI and low power consumption figures • One FULL-CAN interface; conforming to Version 2.0 Part A and Part B, flexible message buffering (mailbox and FIFO buffering can be mixed) • Powerful interrupt functions (8 progr. priority levels; 8 external interrupts) • EI2OS - Automatic transfer function independant of CPU; 16 channels of intelligent I/O Services • 18-bit Time-base counter • Watchdog Timer • 1 full duplex UART; support 10.4 KBaud (USA standard) • up to 2 full duplex UARTs (LIN/SCI/SPI) • 1 Serial I/O (SPI) • 1 I2C interface • A/D Converter : 15 channels analog inputs (Resolution 10-bit or 8-bit) • 16-bit reload timer × 1channel • ICU (Input capture) 16-bit × 6 channels • OCU (Output compare) 16-bit × 4 channels • 16-bit free running timer × 2 channels (FRT0 : ICU 0/1, OCU 0/1/2/3, FRT1 : ICU 2/3/4/5) • 8/16-bit Programmable Pulse Generator 6 channels × 8/16-bit • Optimized instruction set for controller applications (bit, byte, word and long-word data types; 23 different addressing modes; barrel shift; variety of pointers) • 4-byte instruction execution queue • signed multiply (16-bit × 16-bit) and divide (32-bit/16-bit) instructions available • Program Patch Function (3 address match registers) • Fast Interrupt processing • Low Power Consumption mode Sleep mode Timebase timer mode Stop mode CPU intermittent mode • Automotive input levels • Package : 100-pin plastic QFP
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