3. Pin functions
Pin
number
Pin name
I/O
Functional description
1 | PANEL_AD_XL | I |
2 | PANEL_AD_XR | I |
3 | SW0 | I |
4 | SW1 | I |
5 |
| I |
6 |
| I |
7 | CNVss | P |
8 | RESET | I |
9 | Vcc | P |
10 | Vref | P |
11 | Vss | P |
12 | Xin | I |
13 | Xout | O |
14 | Vcc | P |
15 | Vss | P |
16 | LED0 | O |
17 | LED1 | O |
18 | LED2 | O |
19 |
| O |
20 | Vss | P |
21 | Vcc | P |
22 | Vcc | P |
23 | USBVref | P |
|
|
|
24 | TrON | O |
25 | D+ | I/O |
|
|
|
26 | D- | I/O |
|
|
|
27 | PANEL_YD/LL | O |
28 | PANEL_YU/UL | O |
29 | PANEL_XL/UR | O |
30 | PANEL_XR/LR | O |
31 | PANEL_LL | O |
32 | PANEL_UR | O |
33 |
| O |
34 |
| O |
35 | RxD_I | I |
|
|
|
36 | BEEP | O |
37 | USB_PW | I |
|
|
|
38 | PEN_UP | I |
39 | PANEL_THOb3 | I/O |
|
|
|
Touch Screen XL input pin.
Touch Screen XR input pin.
SW0 input pin; H=ON=1, L=OFF=0.
SW1 input pin; H=ON=1, L=OFF=0.
Unused pin. Via resistance; Vcc is connected.
Unused pin. Via resistance; Vcc is connected.
Vss is connected.
Reset input pin (active L).
Power supply input pin; Vcc is connected.
A/D converter reference voltage input pin; Vcc is connected.
Power supply input pin (GND); GND is connected.
Clock input pin; When using external clock, clock is input to this pin.
Clock output pin; When using external clock, this pin is opened.
Power supply input pin; Vcc is connected.
Power supply input pin (GND); GND is connected.
LED output pin; When internal initialization was finished correctly, output L.
LED output pin; Touch input, ON=L, OFF=H.
LED output pin; When a response for the command is NAK, output L.
Unused pin; Opened.
Power supply input pin (GND); GND is connected.
Power supply input pin; Vcc is connected.
Power supply input pin; Vcc is connected.
USB reference voltage input pin. If Vcc is 3.3V, Vcc is connected. If Vcc is 5V, GND is
connected via capacitor.
Identification signal for USB. D+ is connected via resistance (1.5k ohm).
Data send/receive pin; In USB mode, D+ pin.
In serial mode, GND is connected via resistance (1k to 10k ohm).
Data send/receive pin; In USB mode, D- pin.
In serial mode, GND is connected via resistance (1k to 10k ohm).
Touch screen control pin.
Touch screen control pin.
Touch screen control pin.
Touch screen control pin.
Touch screen control pin. Used only in
Touch screen control pin. Used only in
Unused pin; Opened.
Unused pin; Opened.
In
communication mode.
BEEP output pin; H output.
USB power supply detection pin. In USB mode,
In serial mode, GND is connected.
GND is connected.
Touch screen control pin. Used only in
Document No. | 5 | Version 1.0 ©2008 DMC Co., Ltd. |