LZ-702W
6
MICROCOMPUTER’S TERMINAL DESCRIPTION
●
SYSTEM
µ
-COM : IC301 (X35- : VIDEO UNIT)
Pin No.
Pin Name
I/O
Application
Processing / Operation / Description
1
VHOLD1
-
Not used
Pull-down to VSS
2
HLF1
-
Not used
Pull-down to VSS
3
SCL
O
I2C BUS interface clock
4
SDA
O
I2C BUS interface data
5
NC
-
Not used
6
REMOCON
I
Remote control
7
OSD HSYNC2
I
HSYNC for
γ
adjustment
8
BYTE
-
Not used
9
CNVSS
I
Processor mode setting
L-fixed
10,11
NC
-
Not used
Open
12
RESET
I
Reset
L : Reset
13
XOUT
I
Resonator connection
16.000MHz
14
VSS
-
VSS
15
XIN
I
Resonator connection
16.000MHz
16
VCCI
-
3.3V power supply
17
OSCHLF
-
For external filter
18
OSC2
-
Not used
19
ACC DET
I
ACC detection
“H” : Power down
20
POWER KEY
I
PWR key interruption
Screen comes back from sleep mode when power is OFF
21
OSD SW
O
Source image/OSD switching
“H” is output when displaying OSD
22
OUT2
-
Not used
23
NC
-
Not used
24
INV PWM
O
PWM control for backlight
25
NC
O
Not used
26
SP VOL
O
Volume control for speaker
Controls by using DUTY of PWM
27,28
NC
-
Not used
29
NDATA
I
Serial communication from navigation
5V interface
30
TDATA
O
Serial communication to navigation
5V interface
31
NC
-
Not used
32
OSD R
O
OSD red output
33
OSD G
O
OSD green output
34
OSD B
O
OSD blue output
35
GAMMA DATA/
O
Communication to timing controller IC (IC103)
W TXD
For writing into flash
µ
-com
36
W RXD
I
For writing into
µ
-com
37
GAMMA CLK/
I/O
Communication to timing controller IC (IC103)
W CLK
For writing into
µ
-com
38
BUSY
O
For writing into
µ
-com
39
GAMMA CS
O
Communication to timing controller IC (IC103)
40
V SEL
O
Switches SW1 of timing controller IC (IC103)
“H” : Navigation image. “L” : AV-IN image
41
INV ENABLE/EPM
O
Inverter circuit enable
“H” : Inverter operation
42,43
NC
-
For writing into
µ
-com
44
N/P IN
I
NTSC/PAL condition detection of timing controller
“H” : NTSC. “L” : PAL
IC (IC103)
45
V MUTE
O
Video signal mute
“H” : Video signal mute
46
W CE
-
Not used
47
NC
-
Not used
48
SYS ON
-
Not used
