15
D-NE004/NE005/NE0050/NE006
6-6. IC PIN FUNCTION DESCRIPTION
Pin No.
Pin name
I/O
Description
• IC801 BU18704-S1 (SYSTEM CONTROLLER)
1
SEG0
O
Not used (OPEN)
2 to 21
SEG1 to SEG20
O
LCD segment output
22
XLINEOUT_MUTE
O
LINE OUT muting output
23
EE_SDA/REM_SDA
I/O
EEPROM data
24
EE_SCL
O
EEPROM clock
25
PLL_CE
O
Not used (OPEN)
26
PLL_CLK
O
Not used (OPEN)
27
PLL_DATA
O
Not used (OPEN)
28
NC
O
Not used (OPEN)
29
CEL_CEX
O
Select model
30
NC
O
Not used (OPEN)
31
NC
I
Not used (OPEN)
32
NC
I
Not used (OPEN)
33
GND
–
Ground terminal
34
NC
I
Not used (OPEN)
35
PLL_RST
O
Not used (OPEN)
36
ST_DET
O
Not used (OPEN)
37
MO/ST
O
Not used (OPEN)
38
XLINE_DET
I
LINE OUT sensing status detection input
39
SUBSYQ
I
Sub code sync interuption input
40
HOLD
I
HOLD switch status detection input
41
OPEN/CLOSE
I
OPEN switch status detection input
42
INNER
I
Not used (OPEN)
43
K_PLAY
I
PLAY KEY input
44
K_TUNER
I
Not used (OPEN)
45
BEEP
O
Not used (OPEN)
46
NC
I
Not used (OPEN)
47
DIN OUT
I/O
Command output , DSP status input, subcode Q input
48
MCK
O
Serial interface clock output
49
RW
O
DSP’s serial interface Read/Write signal output
I
DSP’s auto sequencer status
O
SDRAM initialize output
–
Power supply for CPU and I/O
O
System reset output
O
Not used (OPEN)
O
Not used (OPEN)
O
Headphone IC mute ON/OFF control output
I
Microcomputer reset terminal
I
Connect to GND
59
XIN75
I
Not used (fixed at “L”)
60
XOUT75
O
Not used (OPEN)
61
GND
–
Ground terminal
62
XIN4M
I
4MHz clock input
63
XOUT4M
O
4MHz clock output (OPEN)
64
VDD
–
Power supply for CPU and I/O
65
DC_IN
I
DC IN voltage monitoring input
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