Digital Interface
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4
Digital Interface
The TSC2013EVM is designed to easily interface with multiple control platforms.
Table 2. Digital Interface Pinout
PIN NUMBER
SIGNAL
DESCRIPTION
J202.1
GND
J202.2
RST
Hardware reset input
J202.3
SDA_A
Serial data I/O
J202.4
SCL_A
Serial clock
J202.5
INT_TSC
Interrupt output (for host systems)
J202.6
GND
J201.1
RXD_Debug
Receiving asynchronous data input. For debug purpose.
J201.2
GND
J201.3
TXD_Debug
Transmit Asynchronous Data Output. For debug purpose.
5
Power Supplies
The USB connection supplies the TSC2013EVM with power. Onboard regulators generate the required
supply voltages and no further power supplies are necessary. The power-supply voltage has an LED
(LED502) that lights up when the power supplies are active.
6
EVM Operation
The following section provides information on the analog input, digital control, and general operating
conditions of the TSC2013EVM.
6.1
Analog Input
The analog input sources (touch screen) can be applied directly to pin J300.
6.2
Digital Control
The digital control signals are applied through the USB connection and no other connections are required.
The TSC2013EVM can also be connected to a DSP or microcontroller interface board through the J202
pin. If external I
2
C control is desired, remove the following resisters: R231, R232, and R233.
2
TSC2013EVM User's Guide
SLVUA92 – July 2014
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