Renesas RH850/F1Kx Series - Table 11: RH850;F1 KM-S4 Power Supply Architecture with Mixed Supply 5 V & 3.3 V; Table 12: RH850;F1 KM-S4 Power Supply Architecture with Mixed Supply 5 V & 3.3 V

RH850/F1Kx, RH850/F1K Series Hardware Design Guide
R01AN3841ED0110 Rev. 1.10 Page 18 of 108
August 8, 2019
Table 11: RH850/F1KM-S4 Power supply architecture with mixed supply 5V & 3.3V
Case 2 – Mixed Supply 5V & 3.3V
Condition
REGVCC = 5V
EVCC = 5V
BVCC = 5V
A0VREF = 5V
A1VREF = 3.3V
Port Function
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.
P19 – 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.
Limitation
Analog port function limitation applies to P18 and P19

Operation permitted
Table 12: RH850/F1KM-S4 Power supply architecture with mixed supply 5V & 3.3V
Case 3 – Mixed Supply 5V & 3.3V
Condition
REGVCC = 5V
EVCC = 5V
BVCC = 5V
A0VREF = 3.3V
A1VREF = 5V
Port Function
AP0 – Port usable with analog or digital function
P8 – 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.
P9 – 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.
AP1 – Port usable with analog or digital function
P18 – Port usable with analog or digital function
P19 – Port usable with analog or digital function
Limitation
Analog port function limitation applies to P8 and P9

Operation permitted