Pin Function; Cpu (Hd62119A02) - Casio CFX-9800G Service Manual & Parts List

12. PIN FUNCTION

12-1. CPU (HD62119A02)

Pin No. Pin Name
1,3~12 KO1~KO10,KO12
14~20 KI1~KI7
22 IT2
23 IT0
24~42 AO0~AO18
43 OEBO
44 WEBO
48~51 CS4BO~CS7BO
52~59 IO0~IO7
62,63 OPT0,OPT1
64~71 PORT0~PORT7
72 VSS
73,74 PI,PO
75 VLC
76,77 XO,XI
78 VCC
79 VREG2
80,81 TS1,TS2
82 VSSR
85 VSS
86 OCLK
87 ITOFF
89 SW
90 VDB
91~94 VD1~VD4
95 VREG1
96 VREG4
97 VREG5
98,99 VDT1I,VDT2I
100 VREG3
Input / Output
O Key common signal
I Key input signal
I Interrupt input
GND
O Address bus
O Enable signal
O Enable signal to write
O Chip selecting signal
I Data bus
O Output point for check
I/O Input/output point
GND
Power for ceramic oscillator
Power
Power
Power for LSI
Power
I Terminal for test
GND
GND
O Clock
I/O Terminal for power switch
I Reset switch
Power
Power for doubler
Regulator power for LSI
Regulator power for ROM
Regulator power
I Terminal for detector
Regulator power for RAM
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Function