Renesas RL78 Series User Manual page 772

RL78/G1D
23.3.8.1 A/D test register (ADTES)
This register is used to select the A/D converter's positive reference voltage, A/D converter's negative reference
voltage, analog input channel (ANIxx), temperature sensor output voltage, or internal reference voltage (1.45 V) as the
target of A/D conversion.
When using the A/D test function, specify the following settings:
● Select negative reference voltage as the target of A/D conversion for zero-scale measurement.
● Select positive reference voltage as the target of A/D conversion for full-scale measurement.
The ADTES register can be set by an 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
Address: F0013H After reset: 00H
Symbol 7
ADTES 0
ADTES1
0
1
1
Other than above
Note Temperature sensor output voltage and internal reference voltage (1.45 V) can be used only in HS
(high-speed main) mode.
R01UH0515EJ0120 Rev.1.20
Dec 16, 2016
Figure 23-16. Format of A/D Test Register (ADTES)
R/W
6 5
0 0
ADTES0
0 ANIxx/temperature sensor output voltage
is specified using the analog input channel specification register (ADS).)
0 Negative reference voltage (selected with the ADREFM bit in ADM2)
1 Positive reference voltage (selected with the ADREFP1 or ADREFP0 bit in ADM2)
Setting prohibited
CHAPTER 23 SAFETY FUNCTIONS
4 3
0 0
A/D conversion target
Note
/internal reference voltage (1.45 V)
2 1
0 ADTES1 ADTES0
Note
0
(This
751