Renesas SH7641 Manuel D’Utilisation

Section 21   A/D Converter 

 

 

Rev. 4.00  Sep. 14, 2005  Page 803 of 982 

 

 REJ09B0023-0400 

10 to 8 

 All 

0 

R 

Reserved 

These bits are always read as 0. The write value should 
always be 0. 

7 

6 

CKS1 

CKS0 

0 

1 

R/W 

R/W 

Clock Select 

Selects the A/D conversion time. Clear the ADST bit  
to 0 before changing the conversion time. 

00: Conversion time = 151 states (maximum)  

clock = P

φ/4 

01: Conversion time = 285 states (maximum)  

clock = P

φ/8 

10: Conversion time = 545 states (maximum)  

clock = P

φ/16 

11: Reserved 

5 

4 

MULTI1 

MULTI0 

0 

0 

R/W 

R/W 

These bits select single mode, multi mode, or scan 
mode. 

00: Single mode 

01: Reserved (setting prohibited) 

10: Multi mode 

11: Scan mode 

3, 2 

 All 

0 

R 

Reserved 

These bits are always read as 0. The write value should 
always be 0.