Specifications

EPC-21/22 Hardware Reference
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Front Panel LED
The EPC has one LED on the front panel. This RUN LED is lit whenever the EPC's
memory is being accessed. It first comes on at power-up and should remain lit as
long as the system is running. It is normal for the RUN LED to flicker during power-
up. If the processor halts (or hangs) , the LED will go out.
Resetting the EPC
There are a number of ways to reset (reboot) the EPC.
Power-off, Power-on
This causes the entire system to reset. The system will run the power-on
self-tests and reboot the operating system.
Front-panel Reset button
The Reset button causes the EPC to perform a hardware reset. The system
will run the power-on self-tests and reboot the operating system.
Expansion Interface
Pin A57 on the EXM expansion connector is defined as ~RESETIN.
Asserting this input (low) will reset the processor. This is provided to allow
remote reset to be implemented. This is a full hardware reset. The system
will run the power-on self-tests and reboot the operating system.
Watchdog Timer
Enabling the watchdog timer and allowing it to expire will reset the
processor. The watchdog timer is tied to ~RESETIN pin described above.
The system will run the power-on self-tests and reboot the operating system.
Setup Screen
Pressing F10 and then F5 to save changes and reboot causes a full hardware
reset.