Renesas SH7149 Manual Do Utilizador

Functional Overview 

2.7 Interrupt Switches 

Rev.1.0 Dec 15, 2006 

2-9

REJ10J0917-0100 

 

 

 

2 

2.7 Interrupt Switches 

 

In the M3A-HS49, the switch is connected with the IRQ0 (PB2) pin, MRES pin and NMI pin of the SH7149.

   

LED to confirm that the switch has been pushed is connected to the NMI switch and IRQ0 switch. 

Figure2.7.1 shows the interrupt block diagram in the M3A-HS49. 

 

IRQ0(PB2)

NMI

SW5

SH7149

RED

VCC

SW6

VCC

NMI switch

ＩＲＱ

0 switch

VCC

Yellowgreen

LED8 ; LED for interrupt confirmation

SW7

VCC

MRES switch

MRES(PE13)

 

 

Figure2.7.1 Interrupt Block Diagram