CHAPTER 3 INSTALLATION
User’s Manual U16290EJ1V0UM
33
3.5
External Trigger
To set up an external trigger, connect it to the check pins EXTOUT and EXTIN of the IE-789835-NS-EM1 as
shown below.
See the
IE-78K0S-NS User’s Manual (U13549E)
or
IE-78K0S-NS-A User’s Manual (U15207E)
for pin
characteristics, and the
ID78K Series Integrated Debugger Ver. 2.30 or Later Operation (Windows Based)
User’s Manual (U15185E)
for the usage methods.
(1) EXTOUT
Outputs a low level from the EXTOUT pin on the IE-789835-NS-EM1 for 1.3
µ
s upon the occurrence of a break
event.
Caution
Connect a pull-up resistor on the target system since this is an open-drain output.
(2) EXTIN
An event signal can be input from the EXTIN pin on the IE-789835-NS-EM1. Input a high-level pulse signal for 2
CPU operation clocks or more.
Figure 3-17. External Trigger Input Position
VR1
SW3
LED1
X1
IE-789835-NS-EM1
IC2
CN1
P3
P1
IC1
SW2
CN2
SW1
CP57
VLC3
X2
XT1
JP2
1
3
SW4
SW5
SW6
CN3
P2
External trigger
CP11 EXTOUT
CP12 EXTIN
TM1
