CH-X470RF
1-27
UPD780058GC-291(IC601):CPU
1.Terminal layout
80 61
21 40
1
20
60
41
Description of major ICs
Pin
No.
PORT
Name
I/O
Function
Pin
No.
PORT
Name
I/O
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
LCDDA
LCDSCK
LCDCE
GND
VREF
POSCON
AVREF1
NC
NC
CDCHECK
EPROMDI
EOROMDO
EPROMCK
NC
BUS I/O
BUS SI
BUS SO
BUS SCK
NC
NC
NC
NC
NC
NC
NC
CD ON
PWR CONT
POSMO+
POSMO-
TRAYMO-
BUCK
GND
LSI RESET
CCE
BUS0
BUS1
BUS2
BUS3
NC
O
O
O
-
-
O
-
-
-
I
I/O
O
I/O
-
O
I
O
I/O
-
-
-
-
-
-
-
O
O
O
O
O
O
-
-
O
I/O
I/O
I/O
I/O
O
-
LCD driver data output
LCD driver clock output
LCD driver chip enable output
Connect to ground
Reference voltage output
Position control output
Connect to 5V
Unused output port
Unused output port
CD check mode input. Reset only.
EEPROM data input
EEPROM data output. Hi durring input.
EEPROM clock input/output
Unused output port
JVC bus input/output control(Lo:input)
JVC bus data input
JVC bus data output
JVC bus clock input/output
Unused output port
Unused output port
Unused output port
Unused output port
Unused output port
Unused output port
Unused output port
CD power control Hi:on
Power supply control output Hi:on
Position motor control output
Position motor control output
Tray motor control output
Tray motor control output
CD LSI data clock
Connect to ground
CD LSI reset
CD LSI chip enable
CD LSI data 0(open drain)
CD LSI data 1 (open drain)
CD LSI data 2 (open drain)
CD LSI data 3 (open drain)
Unused output port
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
CD RW
NC
NC
MAG IN
TRAY OUT
TRAY IN
REST
DISC SEL
EMPH
NC
OE
SHOCK SW
SHOCK
NC
A.MUTE
MUTE PWR
STAGE
STAGE2
EPROM CLR
RESET
REMOCON
PWR DET
PWR SW
BUS INT
EJECT
NC
GND
VDD0
X2
X1
GND
XT2
XT1
VDD
AVREF0
L SENSOR
KEY1
KEY2
KEY3
KEY0
O
-
-
-
O
O
I
O
O
-
-
I
O
-
-
O
I
-
I
I
I
I
I
I
I
-
-
-
O
I
-
O
I
-
-
I
I
I
I
I
CD-RW Detect signal output
Unused output port
Unused output port
Magazine switch Lo:magazine inserted
Tray extend switch Lo:extension complete
Tray retract switch Lo:retraction complete
Resr switch
Disc select output
Emphasis select output Hi:on
Unused output port
Unused output port
Shock proof switch signal input
Shock proof output
Unused output port
Unused output port
Power supply for mute
LCD,AD key,remote inhibit selector Low:inhidit
Unused output port
EEPROM clear input Functional only dunng reset
Reset input (includes flash write in function)
Remote controller signal input
Memory power detect input
CRTL+B detect input
JVC bus com start interrupt input
Eject key input
Unused output port
Connect to ground
Conneto to VDD
Oscillater (4.19430 MHz)
Oscillater (4.19430 MHz)
Connect to ground
Open
Connect to VDD
Connect to 5V
Connect to ADCONT
Linear sensor input(8 bit A/D input)
Key input 1 (8 bit A/D input)
Key input 2 (8 bit A/D input)
Key input 3 (8 bit A/D input)
Key input 0 (8 bit A.D input)
2.Pin function
