M38B53M4-059FP datasheet(217/355 Pages) MITSUBISHI

Part #	M38B53M4-059FP

Description	8-BIT SINGLE-CHIP MICROCOMPUTER

PDF	355 Pages

Scroll/Zoom	100%

Manufacturer	MITSUBISHI [Mitsubishi Electric Semiconductor]

Direct Link	http://www.mitsubishichips.com

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217 / 355 page

38B5 Group User’s Manual

APPLICATION

2-129

2.5 A-D converter

2.5.3 A-D converter application examples

(1)

Read-in of analog signal

Outline: The analog input voltage input from a sensor is converted to digital values.

Figure 2.5.7 shows a connection diagram, and Figure 2.5.8 shows the setting of relevant registers.

Fig. 2.5.7 Connection diagram

Specifications: •Conversion of analog input voltage input from sensor to digital values

•Use of P70/AN0 pin as analog input pin

Fig. 2.5.8 Setting of relevant registers

P70/AN0

38B5 Group

Sensor

000

ADH

ADL

A-D control register (address 003216)

ADCON

Analog input pin : P70/AN0 selected

A-D conversion start

A-D conversion register (high-order) (address 003416)

(Read-only)

A-D conversion register (low-order) (address 003316)

A result of A-D conversion is stored (Note).

Note: After bit 4 of ADCON is set to “1”, read out both registers in order of ADH (address

003416) and ADL (address 003316) following.

(Read-only)

A result of A-D conversion is stored (Note).

M38B53M4-059FP Datasheet(PDF) 217 Page - Mitsubishi Electric Semiconductor