FEDL610Q421-03

Issue Date: Feb.9, 2015

ML610Q421/ML610Q422

8-bit Microcontroller with a Built-in LCD driver

GENERAL DESCRIPTION

This LSI is a high-performance 8-bit CMOS microcontroller into which rich peripheral circuits, such as synchronous serial port,

UART, I

successive approximation type A/D converter, and LCD driver, are incorporated around 8-bit CPU nX-U8/100.

The CPU nX-U8/100 is capable of efficient instruction execution in 1-intruction 1-clock mode by 3-stage pipe line architecture

parallel procesing. The Flash ROM that is installed as program memory achieves low-voltage low-power consumption operation

(read operation) equivalent to mask ROM and is most suitable for battery-driven applications.

The on-chip debug function that is installed enables program debugging and programming.

FEATURES

• CPU

− 8-bit RISC CPU (CPU name: nX-U8/100)

− Instruction system: 16-bit instructions

− Instruction set:

Transfer,

arithmetic

operations,

comparison,

logic

operations,

multiplication/division,

bit

manipulations, bit logic operations, jump, conditional jump, call return stack manipulations, arithmetic

shift, and so on

− On-Chip debug function

− Minimum instruction execution time

30.5

µs (@32.768 kHz system clock)

0.24 4

µs (@4.096 MHz system clock)

• Internal memory

− Internal 32KBbyte Flash ROM (16K×16 bits) (including unusable 1KByte TEST area)

− Internal 1KByte Data RAM (1024×8 bits), 1KByte Display Allocation RAM (1024 x 8bit)

− Internal 100Byte RAM for display

• Interrupt controller

− 2 non-maskable interrupt sources (Internal source: 1, External source: 1)

− 20 maskable interrupt sources (Internal sources: 16, External sources: 4)

• Time base counter

− Low-speed time base counter ×1 channel

Frequency compensation (Compensation range: Approx.

−488ppm to +488ppm. Compensation accuracy: Approx.

0.48ppm)

− High-speed time base counter ×1 channel

• Watchdog timer

− Non-maskable interrupt and reset

− Free running

− Overflow period: 4 types selectable (125ms, 500ms, 2s, and 8s)

• Timers

−

8 bits

× 4 channels (Timer0-3: 16-bit x 2 configuration available by using Timer0-1 or Timer2-3)

−

Clock frequency measurement mode (in one channel of 16-bit configuration using Timer2-3)

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