■ 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