RH850/F1Kx, RH850/F1K Series Hardware Design Guide
R01AN3841ED0110 Rev. 1.10 Page 46 of 108
August 8, 2019
Table 44: RH850/F1K Overview of power supply architecture cases
Case
Note: * means “don’t care”.
Table 45: RH850/F1K Power supply architecture with single supply 5V
Case 1 – Single Supply 5V
EVCC = 5V
A0VREF = 5V
AP0 – Port usable with analog or digital function
P8 – Port usable with analog or digital function
P9 – Port usable with analog or digital function
AP1 – Port usable with analog or digital function
P18 – Port usable with analog or digital function
Table 46: RH850/F1K Power supply architecture with mixed supply 5V & 3.3V
Case 2 – Mixed Supply 5V & 3.3V
EVCC = 5V
A0VREF = 5V
AP0 – Port usable with analog or digital function
P8 – Port usable with analog or digital function
P9 – Port usable with analog or digital function
AP1 – Port usable with analog or digital function
P18 – Port usable with analog or digital function, analog input
voltage limited to max. 3.3V. When analog input terminal is over 3.3V,
do not include the input into an AD scan group.
Analog port function limitation applies to P18
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