M30280F6HP RENESAS [Renesas Technology Corp], M30280F6HP Datasheet - Page 245

• Manufacturer Part Number: M30280F6HP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

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Table 15.4 Repeat Mode Specifications
Figure 15.8 Operation Example in Repeat Mode
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6
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A/D Conversion Start
Condition
A/D Conversion Stop Condition Set the ADST bit to “0” (A/D conversion halted)
15.1.2 Repeat mode
Function
Interrupt Request Generation Timing None generated
Analog Input Pin
Readout of A/D Conversion Result
0
C
2
9
In repeat mode, analog voltage applied to a selected pin is repeatedly converted to a digital code. Table
15.4 shows the repeat mode specifications. Figure 15.8 shows the operation example in repeat mode.
Figure 15.9 shows the ADCON0 to ADCON2 registers in repeat mode.
2 /
0 .
B
0
8
0
AN
AN
AN
AN
AN
AN
AN
AN
0
G
•Example when selecting AN
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7
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0
1
2
3
4
5
6
7
0 -
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Item
u
2
p
A/D conversion started
3
0
, 1
0
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2
1
0
0
6
7
C
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page 225
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The CH2 to CH0 bits in the ADCON0 register and the ADGSEL1 to ADGSEL0
bits in the ADCON2 register select pins. Analog voltage applied to a selected
pin is repeatedly converted to a digital code
• When the TRG bit in the ADCON0 register is “0” (software trigger)
• When the TRG bit in the ADCON0 register is “1” (hardware trigger)
Select one pin from AN
Readout one of the AD0 to AD7 registers that corresponds to the selected pin
6
C
Set the ADST bit in the ADCON0 register to “1” (A/D conversion started)
The AD
to “1” (A/D conversion started)
2 /
f o
8
3
) B
8
5
TRG
2
to an analog input pin (Ch2 to CH0="010
pin input changes state from “H” to “L” after setting the ADST bit
0
to AN
Specification
7
, AN0
0
to AN0
7
and AN2
0
to AN2
2
")
A/D pin input voltage
sampling
A/D pin conversion
15. A/D Converter
7