10
PCM-5894 User's 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.
The table below lists the function of each of the board's jumpers
and connectors.
Jumpers
Label
Function
J2
System clock setting
J3
LCD connector driving voltage select
J7
CMOS setup
J8
CPU frequency ratio
J10
CPU type select
J11
LCD connector driving voltage select
J12
CPU voltage setting
J13
Memory address selection (D.O.C.)
J17
COM2 selection
J18
COM2 selection
J19
IRQ selection (COM3, COM4)
J20
COM3 RI Pin setting
J21
COM4 RI Pin setting
Содержание PCM-5894
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