M30222 Просмотр технического описания (PDF) - Mitsumi

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M30222

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Mitsumi 

dUevnedloSeprpmeenctifications in this manual are tentative and subject to change

MITSUBISHI MICROCOMPUTERS

M30222 Group

Rev. G

Serial I/O Mode 2 (Flash Memory Version)

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

(22) Baud Rate 57600

This command changes baud rate to 57,600 bps. Execute it as follows.

(1) Transfer the "B316" command code with the 1st byte.

(2) After the "B316" check code is output with the 2nd byte, change the baud rate to 57,600 bps.

RxD1

(M16C receive data)

B316

TxD1

(M16C transmit data)

Figure 1.206. Timing of baud rate 57600

B316

Example Circuit Application for the Standard Serial I/O Modes 1 and 2

Figure 1.207 shows a circuit application for the standard serial I/O modes 1 and 2. Control pins will vary according

to programmer, therefore see the peripheral unit manual for more information.

Clock input

BUSY output

Data input

Data output

CNVss

CLK0

RTS0(BUSY)

RXD0

TXD0

M16C/ M30222

Flash memory

version

CNVss

NMI

RESET

Reset

(1) Control pins and external circuitry will vary according to programmer. For

more information, see the programmer manual.

Fig. 1.207. Example circuit application for serial I/O modes 1 and 2

1-238

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