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Chapter 2 Installation 29
2.20.1 Watchdog timer action (J3)
When the watchdog timer activates (CPU processing has come to a
halt), it can reset the system or generate an interrupt on IRQ11.
This can be set via J3 as shown below:
Table 2-10: Watchdog timer action
*System reset IRQ11
J3
* default setting
2.21 USB connectors (CN4)
The PCM-5820 Series board provides two USB (Universal Serial
Bus) interfaces which gives complete Plug and Play, and hot
swaps 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 10-pin flat-cable
connectors, CN4. You will need an adapter cable if you use a
standard USB connector.
The USB interfaces can be disabled in the system BIOS setup.
2.22 TV-out connector (CN21,CN22)
The PCM-5822 board provides on- board TV-out function through
its RCA (composite) connector and S-Video connector, which
support the composite and S-Video outputs. PCM-5822 also
provides an optional SCART output.
The PCM-5822 TV-out function uses a CHRONTEL CH7003 C
TV Encoder chip.
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