Renesas SH7149 - Manual (Page 27)

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