Renesas RH850/F1K Series - Reference Documents; Abbreviations; Website and Support

RH850/F1K Series Hardware Design Guide
R01AN2911EJ0100 Rev. 1.00 Page 8 of 46
Aug 04, 2016
Table 4 Power supply architecture RH850/F1K with mixed supply 5V & 3.3V
Case 3 – Mixed Supply 5V & 3.3V
Condition
REGVCC = 5V
EVCC = 3.3V
A0VREF = 5V
A1VREF = 5V
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
Limitation
Common condition REGVCC = EVCC not met

Operation not permitted
Table 5 Power supply architecture RH850/F1K with mixed supply 5V & 3.3V
Case 4 – Mixed Supply 5V & 3.3V
Condition
REGVCC = 3.3V
EVCC = 3.3V
A0VREF = 5V
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, reduced AD conversion range between 0V to 3.3V
P9 – Port usable with analog or digital function, analog input voltage
limited to max. 3.3V, reduced AD conversion range between 0V to 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, reduced AD conversion range between 0V to 3.3V
Limitation
Analog port function limitation applies to P8, P9 and P18

Operation permitted
3FFh
0V
3.3V
5V
2A3h
0V
3.3V
5V
Note: Conversion range example based on 10-bit ADC resolution
Analog input channel on AP0,
AP1
Analog input channel on P8, P9,
P18
 Reduced AD conversion range