Armadillo-9
hardware manual ver.1.02
6.2. External Interrupts
Connections from outside the board can be made to the external interrupt terminal of the CPU (EP9315)
via CON14. Pin-4 of CON14 can be connected to the CPU (EP9315) by shorting JP3. While by shorting
JP4, the interrupt output of IC5(S-353xxA) can be sent to outside the board. JP3 and JP4 are set to open at
shipment. Both CPU input signals and IC5 output signals are CMOS3.3V voltage level.
EP9315
EXTIRQ
S-
353xxA
INT*
JP4
JP3
CON14
Pin 4
Figure 6-2 EXTIRQ Connections
6.3. LED (D1)
LED (D1) is connected to the PE0/GRLED pin of the CPU (EP9315). After functioning as a status LED
when internal ROM is booted, it can be controlled by setting GPIO Port E of EP9315.
680
Ω
EP9315
GRLED
LED
(D1)
Figure 6-3 LED (D1) Connections
29