4
MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin No. Pin Name
I/O
Description
Processing Operation
1
M DATAC
O
Data output to STC-700
2
M CLK
I
Data clock input from STC-700
3
OSD CS
O
OSD chip select output
4
OSD DO
O
OSD data output
5
OSD CK
O
OSD clock output
6
EVDD
-
Positive power supply connection terminal
Connected to BU5V lines.
7
EVSS
-
Ground connection terminal
Connected to GND lines.
8
OSD RST
O
OSD reset output
Lo : Reset
9
OSD TRE
I
Communication permission input from the OSD IC
Hi : Busy
10
VSYNC
O
V SYNC signal input
Not used (N.C.)
11
SYNC SW
O
V SYNC signal input selector output
Not used (N.C.)
12
REMO
I
Remote control signal input
13
SDA
I/O
I2C BUS data input/output
14
SCL
I/O
I2C BUS clock output
15
DIMMER
O
Dimmer output
PWM output, Duty variable, Approximately 150Hz
16
HSY
I
H SYNC signal input for the OSD IC control
17
BEEP
O
BEEP output
18
IC/VPP
-
Flash data writing terminal
Not used(connected to GND lines)
19
P100
O
Not used (N.C.)
20
PARK SW
I
Parking detection input
Hi : Parking ON, Lo : Parking OFF
21
EX MP
O
Panel mechanism slide motor
Not used (N.C.)
22
EX MN
O
Panel mechanism slide motor output -
Not used (N.C.)
23
RI MP
O
Panel mechanism tilt motor
Not used (N.C.)
24
RI MN
O
Panel mechanism tilt motor output -
Not used (N.C.)
25
PON
O
PON output
Lo : Power ON, Hi : Power OFF
26
MEC PON
O
Panel mechanism connection detection input
Not used (N.C.)
27
MOT SW
O
Motor applied voltage switching terminal
Not used (N.C.)
28-30 P111-113
O
Not used (N.C.)
31
RESET
I
Reset input terminal
Lo : Reset
32
XT1
I
Sub clock resonator connection terminal
Not used (pull down to GND lines)
33
XT2
-
Sub clock resonator connection terminal
Not used (N.C.)
34
REGC
-
Capacitor connection terminal for regulator inside microprocessor
35
X2
-
Main clock resonator connection terminal
36
X1
I
Main clock resonator connection terminal
37
VSS
-
Ground connection terminal
Connected to GND lines.
38
VDD
-
Positive power supply connection terminal
Connected to BU5V lines.
39
CLKOUT
O
Internal clock out terminal
Not used (N.C.)
40
AB MUTE
O
Audio muting control output to STC-700
Hi : Muting ON, Lo : Muting OFF
41
VI 1
O
Video in SW control 1
NAVI : (VI 1, VI 2, VI 3) = (Lo, Lo, Lo)
42
VI 2
O
Video in SW control 2
VIN : (VI 1, VI 2, VI 3) = (Lo, Hi, Lo)
43
VI 3
O
Video in SW control 3
MUTE : (VI 1, VI 2, VI 3) = (Lo or Hi, Lo or Hi, Hi)
44, 45 VO 1, 2
O
Video out SW control
Not used (N.C.)
46, 47 AO 1, 2
O
Audio out SW control
Not used (N.C.)
48, 49 AB 1, 2
O
Speaker out SW control
Not used (N.C.)
50
AO MUTE
O
Audio out muting control
Not used (N.C.)
51
LED R
O
LED R indicator output
Not used (N.C.)
52
LED G
O
LED G indicator output
Not used (N.C.)
53
LED B
O
LED B indicator output
Not used (N.C.)
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IC301 (VIDEO CONTROL UNIT : X14-9172-70)
SVT-M700
