GMS81C5108 Datasheet, PDF (88/102 Pages) Hynix Semiconductor – HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS

GMS81C5108
DIP Switch and VR Setting
Before execute the user program, keep in your mind the below configuration
DIP S/W, VR
SW1
-
Description
Emulator Reset Switch. Reset the Emulator.
1
OFF ON
SW2
2
EVA.
Chip
SW2-1
RESET pin
EVA.
Chip
SW2-2
XOUT pin
Oscillator
ON/OFF Setting
Reset the Emulator.
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.
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
1
2
3
OFF ON
External Resistor
and Capacitor
VCL2
VCL1
VCL0
V_DD
SW4-1
Adjust Contrast
VR1 50kΩ
SW4-2
SW4-3
10kΩ × 3
0.47uF × 3 _VSS
Normally ON.
It serves the external bias resistors.
If user want to use external circuit
instead of internal R, turn on these
switches.
SW4
4
5 LCD Voltage booster circuit.
6
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
V_DD
EVA.
Chip
SW4-8
LVD pin
Position ON during normal opera-
tion.
8
ON : Normal operation
OFF : Force to detect the LVD, refer
GMS81C5108 detect the V_DD voltage but Emulator can not do _{to "23. SUPPLY VOLTAGE DETEC-}
because Emulator can not operate if V_DD is below normal opr. _{TION" on page 82.}
voltage (5V), This switch serves LVD environment through the
applying 0V to LVD pin of EVA. chip during 5V normal operation.
JUNE 2001 Ver 1.0
85