Pin functions – DMC TSC-30/IC User Manual
Page 6
Document No. DER-S0098A
5
Version 1.3 ©2012 DMC Co., Ltd.
TSC-30/IC Product Specification
3. Pin functions
Pin
number
Pin name
I/O
Functional description
1
PANEL_AD_XL
I
Touch Screen XL input pin.
2
PANEL_AD_XR
I
Touch Screen XR input pin.
3
SW0
I
SW0 input pin; H=ON=1, L=OFF=0.
4
SW1
I
SW1 input pin; H=ON=1, L=OFF=0.
5
I
Unused pin. Via resistance; Vcc is connected.
6
I
Unused pin. Via resistance; Vcc is connected.
7
CNVss
P
Vss is connected.
8
RESET
I
Reset input pin (active L).
9
Vcc
P
Power supply input pin; Vcc is connected.
10
Vref
P
A/D converter reference voltage input pin; Vcc is connected.
11
Vss
P
Power supply input pin (GND); GND is connected.
12
Xin
I
Clock input pin; When using external clock, clock is input to this pin.
13
Xout
O
Clock output pin; When using external clock, this pin is opened.
14
Vcc
P
Power supply input pin; Vcc is connected.
15
Vss
P
Power supply input pin (GND); GND is connected.
16
LED0
O
LED output pin; When internal initialization was finished correctly, output L.
17
LED1
O
LED output pin; Touch input, ON=L, OFF=H.
18
LED2
O
LED output pin; When a response for the command is NAK, output L.
19
O
Unused pin; Opened.
20
Vss
P
Power supply input pin (GND); GND is connected.
21
Vcc
P
Power supply input pin; Vcc is connected.
22
Vcc
P
Power supply input pin; Vcc is connected.
23
USBVref
P
USB reference voltage input pin. If Vcc is 3.3V, Vcc is connected. If Vcc is 5V, GND is
connected via capacitor.
24
TrON
O
Identification signal for USB. D+ is connected via resistance (1.5k ohm).
25
D+
I/O
Data send/receive pin; In USB mode, D+ pin.
In serial mode, GND is connected via resistance (1k to 10k ohm).
26
D-
I/O
Data send/receive pin; In USB mode, D- pin.
In serial mode, GND is connected via resistance (1k to 10k ohm).
27
PANEL_YD/LL
O
Touch screen control pin.
28
PANEL_YU/UL
O
Touch screen control pin.
29
PANEL_XL/UR
O
Touch screen control pin.
30
PANEL_XR/LR
O
Touch screen control pin.
31
PANEL_LL
O
Touch screen control pin. Used only in 5-wire mode. In 4-wire/8-wire mode, opened.
32
PANEL_UR
O
Touch screen control pin. Used only in 5-wire mode. In 4-wire/8-wire mode, opened.
33
O
Unused pin; Opened.
34
O
Unused pin; Opened.
35
RxD_I
I
In power-save mode, start signal input pin by command reception. Only used serial
communication mode.
36
BEEP
O
BEEP output pin; H output. Output frequency=2.5KHz, Output time=50ms.
37
USB_PW
I
USB power supply detection pin. In USB mode, USB-Vbus is connected. *1
In serial mode, GND is connected.
38
PEN_UP
I
GND is connected.
39
PANEL_THOb3
I/O Touch screen control pin. Used only in 5-wire mode. In 4-wire/8-wire mode, opened.