Advantech PCA-6190, User Manual

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1.8.3 Watchdog timer output (J2)
The PCA-6190 contains a watchdog timer that will reset the CPU or send
a signal to IRQ11 in the event the CPU stops processing. This feature
means the PCA-6190 will recover from a software failure or an EMI
problem. The J2 jumper settings control the outcome of what the com-
puter will do in the event the watchdog timer is tripped.
1.9 System Memory
The PCA-6190 has four sockets for 240-pin dual inline memory modules
(DIMMs) in two separated memory channels. It can operate with single
channel or dual channel modules. We recommend to use dual channel
mode to provide optimized performance.
All these sockets use 1.8 V unbuffered double data rate synchronous
DRAMs (DDRII SDRAM). They are available in capacities of 256, 512
and 1024 MB. The sockets can be filled in any combination with DIMMs
of any size, giving a total memory size between 256 MB and 4 GB.
Table 1.4: Watchdog timer output (J2)
Function
Jumper Setting
IRQ11
* Reset
* default setting
Note: The interrupt output of the watchdog timer is a
low level signal. It will be held low until the
watchdog timer is reset.
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