GMS30004 Datasheet, PDF (53/158 Pages) Hynix Semiconductor – 4-BIT SINGLE CHIP MICROCOMPUTERS

Chapter 4. Evaluation Board
Caution on Operation
• It is required to install a 24DIP IC socket in the application system. The
connection cable is connected to the socket.
• There is a possibility that the ceramic oscillator on the application system cannot
oscillate properly due to the influence of connection cable wiring capacitor or other
reasons. In such a case, install the oscillator on the evaluation board.
• Since the GMS 30000 EVA is designed to evaluate the program operations, there
is a case where the AC and DC characteristics differ from those of the mass-
produced chips
H ^S3 L
U ^S5 X
U ^S6 X
M ^JP K
H ^S4 L
M ^S7 K
M ^S8 K
1
28
GND
CX3
CX2
X1
Connector
80
1
EVA
X0
AC3
M1
AC2
AC1
AC0
Y3
(80QFP)
Y2
Y1
Y0
WDTR
H
REM DATA
RSR0
S1
RSR1
GSEN
S2 ^H
L
RSR2
EVA30000
GND
RSR3
S1 _BKPOINT
T2
WDTM
RPU0
USER
T1
DSC7
RPU1
DSC6
RPU2
DSC5
RPU3
KSR0
KSR1
Connector
(24Pin Socket)
DSC4
DSC3
DSC2
KSR2
DSC1
KSR3
DSC0
L
H
L
Fig 4-1 Layout Diagram
4- 6