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- 21 –
ViewSonic Corporation
Confidential - Do Not Copy
VX712
PIN Function
Pin No.
Name
PLCC QFP
Description
NC
1 39
No connection
DA0/P5.0
2
40
PWM DAC output/General purpose I/O (open drain)
DA1/P5.1
3
41
PWM DAC output/General purpose I/O (open drain)
DA2/P5.2
4
42
PWM DAC output/General purpose I/O (open drain)
DA3/P5.3
5
43
PWM DAC output/General purpose I/O (open drain)
DA4/ P5.4
6
44
PWM DAC output/General purpose I/O (open drain)
DA5/P5.5
7
1
PWM DAC output/General purpose I/O (open drain)
P5.6/HSCL2
8
2
General purpose I/O/Slave IIC1 SCL2 (open drain)
P5.7/HSDA2
9
3
General purpose Output/Slave IIC1 SDA2 (open
drain)
RST
10
4
High Active RESET
HSCL1/P3.0/RXD
11
5
Slave IIC clock/General purpose I/O/Rxd (open
drain)
HSDA1/P3.1/TXD
13
7
Slave IIC data/General purpose I/O/Txd (open drain)
CN
12 6
No connection
P3.2/INT0
14
8
General purpose I/O/External interrupt 0 (Standard
8051)
P3.3/INT1
15
9
General purpose I/O/External interrupt 1 (Standard
8051)
P3.4/T0
16
10
General purpose I/O/T0 Ext. Counter/Timer 0
(Standard 8051)
P3.5/T1
17
11
General purpose I/O/T1 Ext. Counter/Timer 1
(Standard 8051)
P7.6/CLKO2
18
12
General purpose I/O /Clock out 2 (CMOS)
P7.7
19
13
General purpose I/O (CMOS)
X2
20
14
Crystal Out
X1
21
15
Crystal In
VSS
22
16
Ground
NC
23 17
No connection
P6.0/AD0
24
18
General purpose I/O (CMOS) /6-bit ADC channel 0
input
P6.1/AD1
25
19
General purpose I/O (CMOS) /6-bit ADC channel 1
input
P6.2/AD2
26
20
General purpose I/O (CMOS) /6-bit ADC channel 2
input
P6.3/AD3
27
21
General purpose I/O (CMOS) /6-bit ADC channel 3
input
P6.4
28
22
General purpose I/O (CMOS)
P6.5
29
23
General purpose I/O (CMOS)
P6.6/CLKO1
30
24
General purpose I/O/CLKO1 (CMOS)
P6.7
31
25
General purpose I/O (CMOS)
VSYNC
32
26
VSYNC input
Summary of Contents for VX712
Page 20: ... 20 ViewSonic Corporation Confidential Do Not Copy VX712 ...
Page 45: ... 45 ViewSonic Corporation Confidential Do Not Copy VX712 ...
Page 48: ... 48 ViewSonic Corporation Confidential Do Not Copy VX712 5 7 Packing For Shipping ...
Page 50: ... 50 ViewSonic Corporation Confidential Do Not Copy VX712 6 Troubleshooting Flow Chart ...
Page 81: ... 81 ViewSonic Corporation Confidential Do Not Copy VX712 12 6 Audio ...
Page 84: ... 84 ViewSonic Corporation Confidential Do Not Copy VX712 13 5 POWER PCB TOP VIEW ...
Page 85: ... 85 ViewSonic Corporation Confidential Do Not Copy VX712 13 6 POWER PCB BUTTON VIEW ...
Page 86: ... 86 ViewSonic Corporation Confidential Do Not Copy VX712 13 7 AUDIO PCB BUTTON VIEW ...