Справочник Пользователя для SBC comm AMD SBC-770
10 SBC-770 User Manual
Jumpers and connectors
Connectors on the board link it to external devices such as hard
disk drives, a keyboard, or floppy drives. In addition, the board
has a number of jumpers that allow you to configure your system
to suit your application.
disk drives, a keyboard, or floppy drives. In addition, the board
has a number of jumpers that allow you to configure your system
to suit your application.
The following tables list the function of each of the board's
jumpers and connectors.
jumpers and connectors.
Jumpers
Label
Function
J2
Clear CMOS
J4
LCD driving voltage select
J5
System temperature thermal sensor
J6
CPU frequency ratio select
J7
LCD clock signal select
J8
DOC address select
J9
COM2 RS-232/422/485 select
J10
COM2 RS-232/422/485 select