-42-
Control Port Functions
1
VDD
Power 5V
-
2
GP5/T1CKI
TMR1_CLK
Clock Input
I
3
GP4
TXL
Power switch signal
Low Wattage = L
O
4
GP3
RXL
Lamp Status Signal
I
5
GP2/T0CKI
LAMP_PWM
APL Level Input
I
6
GP1
SCEL
Lamp ON/OFF Control
Lamp ON = L
O
7
GP0
LAMP_ERR
Lamp Error Output
Lamp Error = H
O
8
GND
-
-
Pin No.
Name
Function
I/O
●
Sub CPU (IC1882, PIC12F675) Port Functions
1
R
Reset input
I
2
SCL
P_SCK2
IIC BUS SCL
I
3
SDA
P_SDA2
IIC BUS SDA
I/O
4
A07
-
Not used
O
5
A08
-
Not used
O
6
A09
-
Not used
O
7
A10
-
Not used
O
8
A11
-
Not used
O
9
A12
-
Not used
O
10
VrefL
DAC Lower Reference Voltage input
-
11
VrefU1
DAC Upper Reference Voltage input (CH5~CH8)
-
12
Vss
GND
-
13
VrefU2
DAC Upper Reference Voltage input (CH1~CH 4)
-
14
A01
R_V1
Video signal reference voltage (-) R
O
15
A02
R_V2
Video signal reference voltage (+)R
O
16
A03
G_V1
Video signal reference voltage (-)G
O
17
A04
G_V2
Video signal reference voltage (+)G
O
18
A05
B_V1
Video signal reference voltage (-)B
O
19
A06
B_V2
Video signal reference voltage (+)B
O
20
Vcc
Power Supply for Output Buffer (+5V)
-
21
Vdd
Power 5V
-
22
CS2
Slave address setting port 2 (Vdd)
I
23
CS1
Slave address setting port 1 (Vdd)
I
24
CS0
Slave address setting port 0 (GND)
I
Pin No.
Name
Function
I/O
●
IIC Bus D/A Converter (IC3571, M62392FP) Port Functions
1
OE
IO_ENB
I
2
D0
D0
I
3
D1
D1
I
4
D2
D2
I
5
D3
D3
I
6
D4
D4
I
7
D5
D5
I
8
D6
D6
I
9
D7
D7
I
10
GND
GND
-
11
CK
ADD1_CS
Output Port Chip Select
Enable = L
I
12
Q7
MUTE
Audio Mute Output
Mute = H
O
13
Q6
READY_LED
Ready LED
Ready = H
O
14
Q5
LAMP_LED
Lamp Replace LED
Replace = H
O
15
Q4
TEMP_LED
Warning Temperature LED
Warning = H
O
16
Q3
PWR_LED
AC Power LED
ON = H
O
17
Q2
KO3
KEY Scan Output
O
18
Q1
KO2
KEY Scan Output
O
19
Q0
KO1
KEY Scan Output
O
20
Vdd
Power 3.3V
-
Pin No.
Name
Function
I/O
●
Output Expander (IC1801, TC74LCX574FT) Port Functions
