Casio MP-2000 Service Manual page 31

5-2-1. Jumper Settings
The SBC8352 is configured to match the needs of your application by proper jumper settings.
The following tables show the specification of the jumper settings. < * : Default / X : Don't Care >
Note: All specification and quality of the system are assured by Casio as the MP-2000, any local modification of
the jumper setting by customer will not be applicable for Casio's guarantee or warranty.
1. Setting pin 35 of LCD display (J4): JP2, JP4
JP2: Setting pin 35 of LCD display connector (J4)
Pin 35 of J4 is –SHFCLK
Pin 35 of J4 is SHFCLK
2. Setting Watchdog Timer Timeout: JP5
The watchdog timer is an indispensable feature of the SBC8352. It has a sensitive error detection function and
a report function. When the CPU processing comes to a halt, the watchdog can generate an NMI or resets the
CPU.
JP5
1-2
2-3
OPEN*
3. LCD display Power Level Setting (V
5V Panel Power Setting
3.3V Panel Power Setting
4. CPU Settings: JP6, JP8, JP12, JP22
Jumper
JP6
JP8
JP12
JP22
CPU
P55C-233
5. CMOS SRAM Jumper: JP10
Clear CMOS SRAM data
Normal Operation
6. System Flash BIOS Type: JP11
Flash BIOS Type
5V Flash BIOS
12V Flash BIOS
JP2
1-2
2-3*
Watchdog Function
Activate NMI when Watchdog triggered
Reset system when Watchdog triggered
Disable
) - Pins 5, 6, 43, 44 of J4: JP9
CCM
JP9
3-5,4-6*
1-3,2-4
Description
Set CPU clock ratio
Set Single/Dual power of CPU
Set CPU bus clock
Set CPU Core voltage level
JP12 JP6
3-4* OPEN*
JP10
Short
Open*
JP11
Short(1-2)*
Open
— 30 —
JP22 JP8
1-2, 7-8* 1-3,2-4*