AMD PCM-5862, Руководство пользователя, Страница: 36 / 99

30 PCM-5862 User‘s Manual
Watchdog timer configuration
An on-board watchdog timer reduces the chance of disruptions
which EMP (electro-magnetic pulse) interference can cause. This
is an invaluable protective device for standalone or unmanned
applications. Setup involves one jumper and running the control
software (refer to Appendix A).
Watchdog timer action (J13)
When the watchdog timer activates (CPU processing has come to a
halt), it can reset the system or generate an interrupt on IRQ15.
This can be set via setting J13 as shown below:
Watchdog timer action
*System reset IRQ15
J13
1 1
2 2
3 3
* default setting
USB connectors (CN4, CN5) (option)
The PCM-5862 board provides two USB (Universal Serial Bus)
interfaces which gives complete plug and play, hot attach/detach
for up to 127 external devices. The USB interfaces comply with
USB specification rev. 1.0 and are fuse protected.
The USB interfaces are accessed through two 4-pin flat-cable
connectors, CN4 and CN5. You will need an adapter cable if you
use a standard USB connector. The adapter cable has a 4-pin
connector on one end and an USB connector on the other.
The USB interfaces can be disabled in the system BIOS setup.