3
MICROCOMPUTER’S TERMINAL DESCRIPTION
●
Microcomputer : uPD703034AYGF-M01-3BA (IC1 : X25)
Pin
Pin name
I/O
Description
Processing Operation
CD4.7V ON “L”
1
CD4.7V
O
SW for CD4.7V
CD4.7V OFF “H”
CD mechanism starting “L”
2
NC
O
Not used
3
CD DATA
I/O
CD data
For CD mechanism communication
Motor ON “H”
4
CD MOTOR
O
SW for CD motor driver
Motor OFF “L”
Motor operation “H”
5
CD CLK
O
CD clock
For CD mechanism communication
6~8
NC
O
Not used
9
EVDD
-
5V potential
10
EVSS
-
GND potential
11
NC
O
Not used
Usual “H”
12
CD STOP
O
CD stop
Stop “L”
CD mechanism starting “H”
Usual “H”
13
CD RST
O
CD reset
Reset “L”
Always “H”
Completion of ejection “H”
14
12EJE SW
I
CD S2
12cm DISC “L”
8cm DISC “H”
15~17
NC
O
Not used
Load Start “L”
18
LOS SW
I
CD S1
With no DISC “H”
Those with DISC “L”
19
8EJE SW
I
CD S4
Completion of ejection “H”
20
LOE/LIM SW
I
CD S3
DISC chucking “H”
21
IC/Vpp
-
Write-in voltage
Usual Hi-Z
22
CD LO/EJ
I/O
CD loading / ejection control
Eject “H”
Loading “L”
23
CD MUTE
I
CD mute request
Mute ON “L”
Mute OFF “H”
24,25
NC
O
Not used
26
BUS DI
I
IEBUS data input
Completion of GA-NET
27
BUS DO
O
IEBUS data output
Completion of GA-NET
Illumi ON “H” (AMBER “L”)
28
ILL W
O
Illumi Control WHITE
Illumi OFF “L”
When it cannot decode, it blinks by 2Hz.
Illumi ON “H”(WHITE “L”)
29
ILL A
O
Illumi Control AMBER
Illumi OFF “L”
When it cannot decode, it blinks by 2Hz.
30
LED IND
O
CD indicator control
Indicator ON “H”
CD loading~CD chucking~CD eject “H”
CS-434HU/HC
