Renesas rl78 User Manual

 

RL78/G1A 

CHAPTER  22   SAFETY  FUNCTIONS 

<R> 

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     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)

 (This is 

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

1 

0 

Negative reference voltage (selected with the ADREFM bit in ADM2) 

1 

1 

Positive reference voltage (selected with the ADREFP1 or ADREFP0 bit in ADM2) 

Other than above 

Setting prohibited 

 

Note  Temperature sensor output voltage and internal reference voltage (1.45 V)

 

can be used only in HS 

(high-speed main) mode. 

 

This register specifies the input channel of the analog voltage to be A/D converted.  

Set A/D test register (ADTES) to 00H when measuring the ANIxx/temperature sensor output voltage/internal reference 

voltage (1.45 V). 

The ADS register can be set by a 1-bit or 8-bit memory manipulation instruction.  

Reset signal generation clears this register to 00H.  

 

R01UH0305EJ0200  Rev.2.00 

 

 

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Jul 04, 2013