Epson S1C6200A Specifiche Pagina 107

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S1C62740 TECHNICAL HARDWARE EPSON I-95
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (A/D Converter)
Measurement mode
and input terminal setting
Reference voltage
generation circuit setting
Middle electric potential
generation circuit setting
Start A/D conversion
(Set ADON to "1")
A/D interrupt
Read <F7H>
Read <F8H>
No
Yes
A/D conversion
Read <F9H>
Read <FAH>
Read IDR <FBH>
IDR = "0"
Data processing
Complete
No
Yes
No
Yes
END
Stop A/D conversion
(Set ADON to "0")
1
1
2
2
Fig. 4.12.17
A/D conversion
flow chart
Integral AMP output
Interrupt
Data read
Data read
Data read
Data read
IDR read
IDR register
OK NG
<F7>
<F8>
<F9>
<FA>
<FB>
Fig. 4.12.18
A/D conversion
timing chart
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