r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 572
r5f21368sdfp
Manufacturer Part Number
r5f21368sdfp
Description
Renesas Mcu R8c Family / R8c/3xt-a Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5F21368SDFP.pdf
(760 pages)
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Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
Figure 23.2
23.2.5
ADST Bit (A/D conversion start flag)
After Reset
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Address 00216h
[Conditions for setting to 1]
When A/D conversion starts and while A/D conversion is in progress.
[Condition for setting to 0]
When A/D conversion stops.
The ADST bit operates as follows:
• If A/D conversion is started by a software trigger in one-shot mode, the ADST bit is set to 0 when A/D
• If A/D conversion is started by a software trigger in single sweep mode, the ADST bit is set to 0 when A/D
• When 1 is written to the ADST bit by a program, it is set to 1 (A/D conversion starts) after start processing
• If A/D conversion is forcibly stopped by writing 0 to the ADST bit, allow two or more cycles of the AD
Symbol
conversion ends.
conversion ends.
time (refer to Table 23.5 Number of Cycles for A/D Conversion Items). Thus, if this bit is read immediately
after 1 is written, it may be read as 0 (A/D conversion stops) (refer to Figure 23.2).
clock for end processing before writing 1 to the ADST bit.
Symbol
Bit
ADST
A/D Control Register 0 (ADCON0)
ADCON0 register
—
—
—
—
—
—
—
b0 (ADST) in
Preliminary document
Specifications in this document are tentative and subject to change.
ADST Bit Operation
b7
—
0
A/D conversion start flag
Nothing is assigned. The write value must be 0. The read value is 0.
Write 1 to the ADST bit by a program
b6
—
0
Start processing time
Bit Name
b5
—
0
b4
—
0
0: A/D conversion stops
1: A/D conversion starts
b3
—
0
A/D conversion
b2
—
0
Function
b1
—
0
ADST
b0
0
23. A/D Converter
Page 541 of 725
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