EMAC PCA-6782, User Manual

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19 PCA-6782 User Manual
Chapter 2
C
onnecting
Peripherals
&
Jumper
Settings
2.10.5 HDD LED (JFP1 Pin 1~2)
You can connect an LED to connector (JFP1 Pin 1~2) to indicate when the HDD is
active.
2.11 Watch Dog Timer (JWDT1) / Infrared (JIR1)
Figure 2.10 Watch Dog Timer (JWDT1) / Infrared (JIR1)
2.11.1 Watchdog timer output (JWDT1)
The PCA-6782 contains a watchdog timer that will reset the CPU in the event the
CPU stops processing. This feature means the PCA-6782 will recover from a soft-
ware failure or an EMI problem. The JWDT1 jumper settings control the outcome of
what the computer will do in the event the watchdog timer is tripped.
2.11.2 Infrared Connector (JIR1)
This 5-pin header is for connecting infrared device connector.
JWDT1 JIR1
Table 2.2: Watchdog timer output (JWDT1)
Function Jumper Setting
IRQ11
* System Reset
* default setting
1 - 2 closed
1 2 3
2 - 3 closed
1 2 3