Panasonic F77G, MN101C77C user manual Operation of A/D Conversion

Models: F77G MN101C77C

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Chapter 15 A/D Converter

TAD

1 - 2

3

4

12

A/D conversion clock

ANST flag

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A/D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

conversion start

 

 

 

 

 

 

A/D conversion complete

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A/D conversion

 

 

 

 

 

 

 

 

 

 

TS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sampling

 

Hold

 

 

 

 

 

 

 

 

 

 

 

 

 

bit 8 comparison

bit 0 comparison

 

 

 

 

 

 

 

 

 

 

 

 

 

 

bit 9 comparison

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Determine

Determine

Determine

Determine

bit 9

bit 8

bit 1

bit 0

A/D interrupt (ADIRQ)

Figure 15-3-1 Operation of A/D Conversion

To read the value of the A/D conversion, A/D conversion should be done several times to prevent noise error by confirming the match of level by program, or by using the average value.

Operation XV - 9

Page 483
Image 483
Panasonic F77G, MN101C77C user manual Operation of A/D Conversion