— 42 —
I/O
O
O
O
O
—
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
—
—
—
O
I
O
O
O
O
O
O
O
I
—
I
—
—
—
—
—
—
—
O
—
I
• IC501 SYSTEM CONTROL (CXP84648-052Q) (MAIN BOARD)
Pin Name
A5
A4
A3
A2
NC
D0
D1
D2
D3
D4
D5
D6
D7
PLAY_L
PAUSE_L
LED MEGA
LED XFADE
LED DELAY
WE
LODIN
LODOUT
FLCLK
FLDATA
BLK
A1
A0
A13
D_SENS
NC
RESET
10MHz
10MHz
GND
NC
TEX
AVSS
AVREF
BUSOUT
VERSION
KEY2
Pin No.
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
Function
SRAM address 5
SRAM address 4
SRAM address 3
SRAM address 2
Not used
SRAM data 0
SRAM data 1
SRAM data 2
SRAM data 3
SRAM data 4
SRAM data 5
SRAM data 6
SRAM data 7
PLAY lamp
PAUSE lamp
Not used
Not used
Not used
SRAM enable
Loading direction signal input
Loading direction signal output
Display clock
Display data
Display reset
SRAM address 1
SRAM address 0
SRAM address 13
Disc exist/non-exist sensor
Not used
Microprocessor reset
Ceramic oscillator
Ceramic oscillator
Ground (0V)
Not used
Ground (0V)
Ground (0V)
Reference voltage for AV converter. Fixed to VDD
Control A1 output
Ground (0V)
Key input 2
