KCA-R71FM
4
MICROCOMPUTER’S TERMINAL DESCRIPTION
●
SYSTEM MICROCOMPUTER : LC72366-9B63 (FM MODULATOR UNIT : IC501)
Pin No.
Pin Name
I/O
Terminal name
Description
Operation in HOLD
1
XIN
I
X IN
X_tal
-
2
TEST2
-
GND
Ground connection terminal
-
3~5
PG3~1
O
NC
Not used (pull down to GND lines.)
L
6
PG0
I
GND
Connected to GND lines.
-
7
PF3
O
NC
Not used (open)
L
8
PF2
I
REQC
CD-Changer REQC (Active “Low”)
-
9
PF1
O
REQH
CD-Changer REQH (Active “Low”)
H
10
PF0
O
CHCON
CD-Changer ON
L
11
SI2
I
CH_DATA_C
CD-Changer DATA in
-
12
SO2
O
CH_DATA_H
CD-Changer DATA out
L
13
SCK2
O
CH_CLK
CD-Changer DATA SCK (Active “Low”)
H
14
PE0
O
NC
Not used (open)
L
15
PD3
O
LCD DATA out
LCD Driver DATA out
L
16
PD2
O
LCD CLK
LCD Driver CLK out
L
17
PD1
O
LCD RESET
LCD Driver RESET out
L
18
PD0
O
LCD CE
LCD Driver CE out
L
19~26
PC3~PB0
O
NC
Not used (open)
L
27
PA3
I
LCD DATA in
LCD Driver DATA in
-
28~30
PA2~0
I
NC
Not used (pull down to GND lines.)
-
31
VDD
-
Vdd
5V
-
32
PQ0
O
NC
Not used (open)
L
33~44
PP3~PN0
O
GAIN12~1
Modulation output switching
L
45
PM3
O
SEP-ATT
When it has GAIN5 output, “Hi” output
L
46~52
PM2~PL0
O
NC
Not used (open)
L
53
PK3
O
RELAY
Antenna relay control output terminal
L
54
PK2
O
P-on
P_ON
L
55
PK1
O
MUTE
Mute output terminal for the Tuner frequency change
L
56
INT0
I
REMOCON
Remote controller signal input
57~60
PJ3~0
O
NC
Not used (open)
L
61~66
PI1~PH0
I
NC
Not used (pull down to GND lines.)
-
67
HOLD
I
HOLD
ACC detection (Operation in HOLD “Low”)
L
68
SNS
I
Vdd
Vdd
-
69
LCTR
I
NC
Not used (pull down to GND lines.)
-
70
HCTR
I
NC
Not used (pull down to GND lines.)
-
71
EO3
O
NC
Not used (open)
Hi-Z
72
SUBPD
O
NC
Not used (open)
Hi-Z
73
VDD
-
Vdd
Vdd
-
74
AMIN
I
NC
Not used (pull down to GND lines.)
-
75
FMIN
I
VCO in
VCO input
-
