r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 1000
r4f2426
Manufacturer Part Number
r4f2426
Description
16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R4F2426.pdf
(1302 pages)
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Section 17 A/D Converter
17.4
The A/D converter has two operating modes: single mode and scan mode. First select the clock for
A/D conversion (ADCLK). When changing the operating mode or analog input channel, to
prevent incorrect operation, first clear the ADST bit in ADCSR to 0. The ADST bit can be set to 1
at the same time as the operating mode or analog input channel is changed.
17.4.1
In single mode, A/D conversion is to be performed only once on the analog input of the specified
single channel.
1. A/D conversion for the selected channel is started when the ADST bit in ADCSR is set to 1 by
2. When A/D conversion is completed, the A/D conversion result is transferred to the
3. When A/D conversion is completed, the ADF bit in ADCSR is set to 1. If the ADIE bit is set
4. The ADST bit remains at 1 during A/D conversion, and is automatically cleared to 0 when
Rev. 1.00 Sep. 19, 2008 Page 972 of 1270
REJ09B0466-0100
software, TPU, TMR, or an external trigger input.
corresponding A/D data register of the channel.
to 1 at this time, an ADI interrupt request is generated.
A/D conversion ends. The A/D converter enters wait state. If the ADST bit is cleared to 0
during A/D conversion, A/D conversion stops and the A/D converter enters a wait state.
Operation
Single Mode
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