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M30201

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Mitsumi 

Pin Description

Mitsubishi microcomputers

M30201 Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Pin Description

Pin name

VCC, VSS

CNVSS

RESET

Signal name

I/O type

Power supply

input

CNVSS

Input

Reset input Input

Function

Supply 2.7 to 5.5 V to the VCC pin. Supply 0 V to the VSS pin.

Connect it to the VSS pin.

A “L” on this input resets the microcomputer.

XIN

XOUT

Clock input

Clock output

Input

Output

These pins are provided for the main clock generating circuit.

Connect a ceramic resonator or crystal between the XIN and the

XOUT pins. To use an externally derived clock, input it to the

XIN pin and leave the XOUT pin open.

AVCC

Analog power

supply input

This pin is a power supply input for the A-D converter. Connect

it to VCC.

AVSS

Analog power

supply input

This pin is a power supply input for the A-D converter. Connect

it to VSS.

VREF

P00 to P07

Reference

voltage input

I/O port P0

Input

This pin is a reference voltage input for the A-D converter.

Input/output

This is an 8-bit CMOS I/O port. It has an input/output port

direction register that allows the user to set each pin for input or

output individually. When set for input, the user can specify in

units of four bits via software whether or not they are tied to a

pull-up resistor.

P10 to P17 I/O port P1 Input/output This is an 8-bit I/O port equivalent to P0.

P30 to P35

P40 to P45

I/O port P3

I/O port P4

Input/output This is a 6-bit I/O port equivalent to P0.

Input/output

This is a 6-bit I/O port equivalent to P0. The P40 pin is shared

with timer A0 input and serial I/O output TxD1. The P41 pin is

shared with timer A0 output. The P42 pin is shared with serial

I/O input RxD1. The P43 pin is shared with external interrupt

INT0 and timer X0 input/output TX0INOUT. The P44 pin is

shared with external interrupt INT1 and timer X1 input/output

TX1INOUT. The P45 pin is shared with timer X2 input/output

TX2INOUT.

P50 to P54 I/O port P5

P60 to P67 I/O port P6

P70 to P71 I/O port P7

Input/output

Input/output

This is a 5-bit I/O port equivalent to P0. The P50, P51, P52, and

P53 pins are shared with serial I/O pins TxD0, RxD0, CLK0,

and CLKS. The P54 pin is shared with clock output CLKOUT.

Also, these pins are shared with analog input pins AN50

through AN54.

This is an 8-bit I/O port equivalent to P0. These pins are shared

with analog input pins AN0 through AN7.

Input/output

This is a 2-bit I/O port equivalent to P0 . These pins are used

for input/output to and from the oscillator circuit for the clock.

Connect a crystal oscillator between the XCIN and the XCOUT

pins.

7

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