UPD70F3793GC-UEU-AX Datasheet, PDF (533/1113 Pages) Renesas Technology Corp – RENESAS MCU V850ES/Jx3-L Microcontrollers

V850ES/JG3-L
CHAPTER 14 A/D CONVERTER
(3) One-shot select mode
In this mode, the result of converting the voltage of the analog input pin specified by the ADA0S register is
compared with the set value of the ADA0PFT register. If the result of power-fail comparison matches the
condition set by the ADA0PFC bit, the conversion result is stored in the ADA0CRn register, and the INTAD
signal is generated. If it does not match, the conversion result is stored in the ADA0CRn register, and the
INTAD signal is not generated. Conversion is stopped after it has been completed.
Figure 14-10. Example of Timing in One-Shot Select Mode
(When Power-Fail Comparison Is Made: ADA0PFM.ADA0PFC bit = 1, ADA0S Register = 01H)
ANI1
Power-fail
comparison value
A/D conversion
Data 1
Data 1
(ANI1)
Data 2
Data 2
(ANI1)
ADA0CR1
Data 1
(ANI1)
Data 2
(ANI1)
INTAD
ADA0PFT mismatch
Conversion end
Conversion start
Set ADA0CE bit to 1
ADA0PFT match
Conversion end
Conversion start
Set ADA0CE bit to 1
Remark The above timing applies to the software trigger mode (ADA0M0.AD0TMD bit = 0) or the
high-speed conversion mode (ADA0M1.ADA0HS1 bit = 1).
(4) One-shot scan mode
In this mode, the results of converting the voltages of the analog input pins sequentially selected from the
ANI0 pin to the pin specified by the ADA0S register are stored, and the set value of the ADA0CR0H register of
channel 0 is compared with the set value of the ADA0PFT register. If the result of power-fail comparison
matches the condition set by the ADA0PFC bit, the conversion result is stored in the ADA0CR0 register and
the INTAD signal is generated. If it does not match, the conversion result is stored in the ADA0CR0 register,
and the INTAD0 signal is not generated. After the result of the first conversion has been stored in the
ADA0CR0 register, the results of converting the signals on the analog input pins specified by the ADA0S
register are sequentially stored. Conversion is stopped after it has been completed.
R01UH0165EJ0700 Rev.7.00
Sep 22, 2011
Page 533 of 1113