Renesas H8S/2111B 用户手册

Rev. 1.00, 05/04, page 418 of 544 

 

Channel Select 2 to 0  

Select analog input channels. The input channel setting 
must be made when conversion is halted (ADST = 0). 

2 

1 

0 

CH2 

CH1 

CH0 

0 

0 

0 

R/W 

R/W 

R/W 

When SCAN = 0: 

000: AN0 

001: AN1 

010: AN2 

011: AN3 

100: AN4 

101: AN5 

110: Setting prohibited 

111: Setting prohibited 

When SCAN = 1: 

000: AN0 

001: AN0 and AN1 

010: AN0 to AN2 

011: AN0 to AN3 

100: AN4 

101: AN4 and AN5 

110: Setting prohibited 

111: Setting prohibited 

Note:  *  Only 0 can be written for clearing the flag. 

 

ADCR enables A/D conversion started by an external trigger signal. 

7 

6 

TRGS1 

TRGS0 

0 

0 

R/W 

R/W 

Timer Trigger Select 1 and 0  

Enable the start of A/D conversion by a trigger signal. 
Only set bits TRGS1 and TRGS0 when conversion is 
halted (ADST = 0).  

00: A/D conversion start by external trigger is disabled  

01: A/D conversion start by external trigger is disabled  

10: A/D conversion start by conversion trigger from 

TMR is enabled 

11: A/D conversion start by 

ADTRG pin is enabled 

5 to 0 

— 

All 1 

R 

Reserved  

These bits are always read as 1 and cannot be 
modified.