MB90246A Просмотр технического описания (PDF) - Fujitsu

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производитель

MB90246A

(MB90220 Series) 16-bit Proprietary Microcontroller

Fujitsu 

MB90246A Series

s PRODUCT LINEUP

Item

Part number

MB90246A

MB90V246

Classification

Mass-produced product

Evaluation product

ROM size

None

RAM size

4 k × 8 bits

6 k × 8 bits

CPU functions

The number of instructions: 412

Instruction bit length: 8 bits, 16 bits

Instruction length: 1 byte to 7 bytes

Data bit length: 1 bit, 4 bits, 8 bits, 16 bits, 32 bits

Minimum execution time: 62.5 ns (at machine clock of 16 MHz)

Interrupt processing time: 1.0 µs (at machine clock of 16 MHz, minimum

value)

Ports

General-purpose I/O ports (CMOS output): 38

General-purpose I/O ports (TTL input): 11

General-purpose I/O ports (N-ch open-drain output): 8

Total: 57

Timebase timer

18-bit counter

Interrupt interval: 0.256 ms, 1.024 ms, 4.096 ms, 16.384 ms

(at oscillation of 32 MHz)

Watchdog timer

Reset generation interval: 3.58 ms, 14.33 ms, 28.67 ms, 57.34 ms

(at oscillation of 32 MHz, minimum value)

8/16-bit PWM timer

Number of channels: 4

Pulse interval: 0.25 µs to 32.77 ms (at oscillation of 32 MHz)

16-bit re-load timer

Number of channels: 3

16-bit re-load timer operation

Interval: 125 ns to 131 ms (at machine clock of 16 MHz)

External event count can be performed.

16-bit

I/O timer

16-bit free-run

timer

Input capture

(ICU)

Number of channel: 1

Overflow interrupts or intermediate bit interrupts may be generated.

Number of channel: 2

Rewriting a register value upon a pin input (rising, falling, or both edges)

I/O simple serial interface

Number of channels: 2

Clock synchronized transmission (62.5 kbps to 8 Mbps)

UART

Clock asynchronized transmission (2404 bps to 500 kbps)

Clock synchronized transmission (250 kbps to 2 Mbps)

Transmission can be performed by bi-directional serial transmission or by

master/slave connection.

Number of inputs: 4

DTP/external interrupt circuit Started by a rising edge, a falling edge, an “H” level input, or an “L” level input.

External interrupt circuit or extended intelligent I/O service (EI2OS) can be used.

Delayed interrupt generation

module

An interrupt generation module for switching tasks

used in real-time operating systems.

(Continued)

4

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