■ DESCRIPTION The MB90590/590G series with two FULL-CAN*1 interfaces and FLASH ROM is especially designed for automo tive and industrial applications. Its main features are two on board CAN Interfaces, 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. ■ 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 (at oscillation of 4 MHz, 4 MHz to 16 MHz). Minimum instruction execution time : 62.5 ns (operation at oscillation of 4 MHz, four times the oscillation clock, VCC of 5.0 V) • 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) : Up to 10 channels • Embedded ROM size and types Mask ROM : 256 Kbytes/384 Kbytes Flash ROM : 256 Kbytes/384 Kbytes Embedded RAM size : 6 Kbytes/8 Kbytes • 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 0.5µm CMOS technology • I/O port General-purpose I/O ports : 78 ports • Timer Watchdog timer : 1 channel 8/16-bit PPG timer : 8/16-bit × 6 channels 16-bit re-load timer : 2 channels
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