RH850/F1K Series Hardware Design Guide
R01AN2911EJ0100 Rev. 1.00 Page 9 of 46
Aug 04, 2016
Table 6 Power supply architecture RH850/F1K with mixed supply 5V & 3.3V
Case 5 – Mixed Supply 5V & 3.3V
REGVCC = 3.3V
EVCC = 3.3V
A0VREF = 5V
A1VREF = 5V
AP0 – Port usable with analog or digital function
P8 – Port usable with digital function only
P9 – Port usable with digital function only
AP1 – Port usable with analog or digital function
P18 – Port usable with digital function only
No limitation applies to P8, P9 and P18 when these ports are used as
digital port only.
Table 7 Power supply architecture RH850/F1K with mixed supply 5V & 3.3V
Case 6 – Mixed Supply 5V & 3.3V
REGVCC = 5V
EVCC = 5V
A0VREF = 3.3V
A1VREF = 3.3V
AP0 – Port usable with analog or digital function
P8 – Port usable with analog or digital function, analog input voltage
limited to max. 3.3V
P9 – Port usable with analog or digital function, analog input voltage
limited to max. 3.3V
AP1 – Port usable with analog or digital function
P18 – Port usable with analog or digital function, analog input voltage
limited to max. 3.3V
Analog port function limitation applies to P8, P9 and P18.