Section 14 A/D Converter
Rev.2.00 Jun. 28, 2007 Page 534 of 666
REJ09B0311-0200
3. When A/D conversion of all selected channels is completed, the ADF bit in ADCSR is set to 1.
If the ADIE bit is set to 1 at this time, an ADI interrupt request is generated. A/D conversion of
the first channel in the group starts again.
4. The ADST bit is not cleared automatically, and steps [2] to [3] are repeated as long as the
ADST bit remains set to 1. When the ADST bit is cleared to 0, A/D conversion stops and the
A/D converter enters wait state. If the ADST bit is later set to 1, A/D conversion starts again
from the first channel in the group.
ADST
ADF
ADDRA
ADDRB
ADDRC
ADDRD
Set
*
1
Clear
*
1
Clear
*
1
*
2
Waiting for conversion
Channel 0 (AN0)
operation state
Channel 1 (AN1)
operation state
Channel 2 (AN2)
operation state
Channel 3 (AN3)
operation state
Waiting for
conversion
A/D
conver-
sion 1
A/D conversion result 3
Waiting for conversion
Waiting for
conversion
Waiting for conversion
A/D conversion result 2
A/D conversion result 4
A/D
conver-
sion 5
A/D
conver-
sion 4
A/D conversion time
Waiting for conversion
A/D
conver-
sion 3
Waiting for conversion
Waiting for conversion
Waiting for conversion
A/D
conver-
sion 2
A/D conversion result 1
Transfer
A/D conversion consecutive execution
Notes: 1.
2.
↓
indicates the timing of instruction execution by software.
Data being converted is ignored.
Figure 14.3 Example of A/D Conversion
(Scan Mode, Three Channels (AN0 to AN2) Selected)
Содержание H8SX/1650
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Страница 106: ...Section 4 Exception Handling Rev 2 00 Jun 28 2007 Page 84 of 666 REJ09B0311 0200...
Страница 142: ...Section 5 Interrupt Controller Rev 2 00 Jun 28 2007 Page 120 of 666 REJ09B0311 0200...
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Страница 470: ...Section 12 Watchdog Timer WDT Rev 2 00 Jun 28 2007 Page 448 of 666 REJ09B0311 0200...
Страница 546: ...Section 13 Serial Communication Interface SCI Rev 2 00 Jun 28 2007 Page 524 of 666 REJ09B0311 0200...
Страница 566: ...Section 14 A D Converter Rev 2 00 Jun 28 2007 Page 544 of 666 REJ09B0311 0200...
Страница 574: ...Section 16 RAM Rev 2 00 Jun 28 2007 Page 552 of 666 REJ09B0311 0200...
Страница 584: ...Section 17 Clock Pulse Generator Rev 2 00 Jun 28 2007 Page 562 of 666 REJ09B0311 0200...
Страница 638: ...Section 19 List of Registers Rev 2 00 Jun 28 2007 Page 616 of 666 REJ09B0311 0200...
Страница 668: ...Section 20 Electrical Characteristics Rev 2 00 Jun 28 2007 Page 646 of 666 REJ09B0311 0200...
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