Supero H8SMU, Руководство пользователя

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H8SMU User's Manual
Note: When enabled, the user needs to
write their own application software in or-
der to disable the Watch Dog timer.
Watch Dog
JWD controls Watch Dog, a system
monitor that takes action when a soft-
ware application freezes the system.
Jumping pins 1-2 will cause WD to
reset the system if an application is
hung up. Jumping pins 2-3 will gen-
erate a non-maskable interrupt signal
for the application that is hung up.
See the table on the right for jumper
settings. Watch Dog can also be
enabled via BIOS.
Watch Dog
Jumper Settings (JWD)
Jumper Setting Defi nition
Pins 1-2 Reset
Pins 2-3 NMI
Open Disabled
VGA Enable/Disable
JPG1 allows you to enable or disable
the VGA port. The default position is
on pins 1 and 2 to enable VGA. See
the table on the right for jumper set-
tings.
VGA Enable/Disable
Jumper Settings (JPG1)
Jumper Setting Defi nition
Pins 1-2 Enabled
Pins 2-3 Disabled
Onboard Speaker Enable/
Disable
The JD1 header allows you to use
either an external speaker or the in-
ternal (onboard) speaker. To use the
internal onboard speaker, close pins
6 and 7 with a jumper. To use an
external speaker, remove the jumper
and connect the speaker wires to pins
4 (+5V) and 7 (control signal). See the
table on the right for settings and the
table associated with the Power LED/
Keylock/Speaker connection (previ-
ous section) for jumper settings.
Onboard Speaker Enable/Disable
Pin Defi nitions (JD1)
Pins Defi nition
6 and 7 Jump for onboard speaker
4 and 7 Attach external speaker wires
Note: Pins 4-7 are used only for the on-
board speaker.