■ DESCRIPTION

The MB90435 series with FLASH ROM is specially designed for industrial applications.

The instruction set by F2MC-16LX CPU core inherits an AT architecture of the F2MC* family with additional instruction sets for high-level languages, extended addressing mode, enhanced multiplication/division instruc tions, and enhanced bit manipulation instructions.The micro controller has a 32-bit accumulator for processing long word data.

The MB90435 series has peripheral resources of 8/10-bit A/D converters, UART (SCI) , extended I/O serial interfaces, 8/16-bit timer, I/O timer (input capture (ICU) , output compare (OCU) ) .

■ 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

Minimum instruction execution time : 62.5 ns

(operation at oscillation of 4 MHz, four times the oscillation clock, VCC of 5.0 V)

Subsystem Clock : 32 kHz

• 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)

• Embedded ROM size and types

Mask ROM : 64 Kbytes / 128 Kbytes / 256 Kbytes

Flash ROM : 128 Kbytes/256 Kbytes

Embedded RAM size : 2 Kbytes/4 Kbytes/6 Kbytes/8 Kbytes (evaluation chip)

• 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

0.5 µm CMOS technology

• I/O port

General-purpose I/O ports : 81 ports

• Timer

Watchdog timer : 1 channel

8/16-bit PPG timer : 8/16-bit × 4 channels

16-bit re-load timer : 2 channels

• 16-bit I/O timer

16-bit free-run timer : 1 channel

Input capture : 8 channels

Output compare : 4 channels

• Extended I/O serial interface : 1 channel

• UART 0

With full-duplex double buffer (8-bit length)

Clock asynchronized or clock synchronized

(with start/stop bit) transmission can be selectively used.

• UART 1

With full-duplex double buffer (8-bit length)

Clock asynchronized or clock synchronized serial

(extended I/O serial) can be used.

• External interrupt circuit (8 channels)

A module for starting an extended intelligent I/O service (EI2OS)

and generating an external interrupt which

is triggered by an external input.

• Delayed interrupt generation module

Generates an interrupt request for switching tasks.

• 8/10-bit A/D converter (8 channels)

8/10-bit resolution can be selectively used.

Starting by an external trigger input.

Conversion time : 26.3 µs

• External bus interface : Maximum address space 16 Mbytes

• Package: QFP-100, LQFP-100