
GMS81C5108
JUNE 2001 Ver 1.0
85
DIP Switch and VR Setting
Before execute the user program, keep in your mind the below configuration
DIP S/W, VR
Description
ON/OFF Setting
SW1
-
Emulator Reset Switch. Reset the Emulator.
Reset the Emulator.
SW2
1
Normally OFF.
EVA. chip can be reset by external
user target system board.
ON : Reset is available by user
target system board.
OFF : MCU is reset by REST switch
on EVA. board.
2
Normally OFF.
MCU XOUT pin are disconnected
by Emulator internally. Some cir-
cumstance user may connect this
circuit.
ON : Output XOUT signal
OFF : Disconnect circuit
SW4
1
2
3
Normally ON.
It serves the external bias resistors.
If user want to use external circuit
instead of internal R, turn on these
switches.
4
5
6
LCD Voltage booster circuit.
Must be ON position.
It is used for the GMS81C5108.
7
Select the Stack Page.
Must be OFF position.
This switch decide the Stack page 0
(off) or page 1 (on).
ON : For the GMS81C7XXX
OFF : For the GMS81C5108
8
GMS81C5108 detect the V
DD
voltage but Emulator can not do
because Emulator can not operate if V
DD
is below normal opr.
voltage (5V), This switch serves LVD environment through the
applying 0V to LVD pin of EVA. chip during 5V normal operation.
Position ON during normal opera-
tion.
ON : Normal operation
OFF : Force to detect the LVD, refer
to "23. SUPPLY VOLTAGE DETEC-
TION" on page 82.
SW2-1
RESET pin
EVA.
Chip
SW2-2
XOUT pin
EVA.
Chip
Oscillator
VCL1
VCL2
External Resistor
VCL0
V
SS
V
DD
Adjust Contrast
SW4-1
SW4-2
SW4-3
0.47uF
×
3
10k
Ω
×
3
and Capacitor
VR1 50k
Ω
SW4-8
V
DD
EVA.
Chip
LVD pin
OFF ON
OFF ON
Downloaded from
Elcodis.com
electronic components distributor