Renesas rl78 User Manual

 

RL78/G1A 

 

CHAPTER  11   A/D  CONVERTER 

R01UH0305EJ0200  Rev.2.00 

 

 

367  

Jul 04, 2013 

This register is used to select the + side reference voltage or 

− side reference voltage for the A/D converter, an analog 

input channel (ANIxx), the temperature sensor output voltage, or the internal reference voltage (1.45 V) as the target for 

A/D conversion.  When using as the A/D test function, set as follows. 

• For zero-scale measurement, select the 

− side reference voltage as the target for conversion. 

• For full-scale measurement, select the + side reference voltage as the target for conversion. 

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  R/W 

Symbol 

7 6 5 4 3 2 1 0 

ADTES 

0 0 0 0 0 0 

ADTES1 

ADTES0 

 

ADTES1 

ADTES0 

A/D conversion target 

0 0 

ANIxx/temperature sensor output voltage

/internal reference voltage (1.45 V)

e

  

(This is specified using the analog input channel specification register (ADS).) 

1 0 

− side reference voltage (Setting at ADREFM bit of ADM2 register) 

1 

1 

+ side reference voltage (Setting at ADREFP1, ADREFP0 bits of ADM2 register) 

Other than above 

Setting prohibited 

 

Note  Temperature sensor output/internal reference voltage (1.45 V) can be used only in HS (high-speed 

main) mode.  For detail, see Figure 24-3  Format of User Option Byte (000C2H/010C2H). 

 

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