Renesas R61509V User Manual

Page of 181
R61509V 
        Target 
Spec 
 
Rev. 0.11 April 25, 2008, page 99 of 181  
 
System Interface 
The following are the kinds of system interfaces available with the R61509V.  The interface operation is 
selected by setting the IM2/1/0 pins.  The system interface is used for instruction setting and RAM access. 
Table 57   IM Bit Settings and System Interface 
IM2 
IM1 
IM0 
Interfacing Mode with Host Processor  
DB Pins 
Colors 
80-system 18-bit interface 
DB17-0 
262,144 
80-system 9-bit interface 
DB17-9 
262,144 
80-system 16-bit interface  
DB17-10, DB8-1 
262,144 
*see Note1 
80-system 8-bit interface  
DB17-10 
262,144 
*see Note2 
Clock synchronous serial interface  
65,536  
1 1 0 Setting 
inhibited 
1 1 1 Setting 
inhibited 
Notes:  1.   65,536 colors in 16-bit single transfer mode. 
2.  262,144 colors is 8-bit 3-transfer mode. 65,536 colors in 8-bit 2-transfer mode.