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ULCD-35DT Datasheet, PDF (9/25 Pages) List of Unclassifed Manufacturers – 3.5 DIABLO16 Intelligent Display Module
4D SYSTEMS
uLCD-35DT Display Module
RX2 pin (Serial Receive COM2):
Asynchronous Serial port COM2 receive pin, RX2.
Connect this pin to external serial device transmit
(Tx) signal. This pin is 5.0V tolerant. This can be
configured to 1 of the GPIO pins, see table below.
TX3 pin (Serial Transmit COM3):
Asynchronous Serial port COM3 transmit pin, TX3.
Connect this pin to external serial device receive
(Rx) signal. This pin is 5.0V tolerant. This can be
configured to 1 of the GPIO pins, see table below.
RX3 pin (Serial Receive COM3):
Asynchronous Serial port COM3 receive pin, RX3.
Connect this pin to external serial device transmit
(Tx) signal. This pin is 5.0V tolerant. This can be
configured to 1 of the GPIO pins, see table below.
General Purpose I/O
There are 16 general purpose Input/Output (GPIO)
pins available to the user. These provide flexibility
of individual bit operations along with serving
collectively for byte wise operations using the BUS
functions
DIABLO16 Alternate Pin Configurations
General Purpose I/O
Please refer to the separate document titled
'DIABLO16-4DGL-Internal-Functions.pdf' for more
information.
PA0-PA3:
General purpose I/O pins, or can serve as Analog
Input pins. Each pin can be individually set for
INPUT or OUTPUT or ANALOG. Power-Up Reset
default is all INPUTS. When set as Digital Inputs, the
pins are 5V tolerant. Digital GPIO can source/sink
10mA. For more information see Chapter 17,
‘Specifications and Ratings’.
When set as Analog Inputs, the pins have a 0 to 3.3V
range, and have 12 bit resolution.
For more information, see Section 4.11 ‘Analog
Inputs’.
PA4-PA13:
General purpose I/O pins. Each pin can be
individually set for INPUT or OUTPUT. Power-Up
Reset default is all INPUTS. When set as Digital
Inputs, the pins are 5V tolerant. Digital GPIO can
source/sink 10mA. For more information see
Section 14, ‘Specifications and Ratings’.
PA14-PA15:
Input only pins. These pins can only be Digital
Inputs.
Note: All GPIO pins are 5.0V tolerant.
PA0 ✓ ✓ ✓ ✓ ✓
PA1 ✓ ✓ ✓ ✓ ✓
PA2 ✓ ✓ ✓ ✓ ✓
PA3 ✓ ✓ ✓ ✓ ✓
PA4 ✓ ✓ ✓ ✓
PA5 ✓ ✓ ✓ ✓
PA6 ✓ ✓ ✓ ✓
PA7 ✓ ✓ ✓ ✓
PA8 ✓ ✓ ✓ ✓
PA9 ✓ ✓ ✓ ✓
PA10 ✓ ✓ ✓ ✓
PA11 ✓ ✓ ✓ ✓
PA12 ✓ ✓ ✓ ✓
PA13 ✓ ✓ ✓ ✓
PA14 ✓
✓
PA15 ✓
✓
System Pins
+5V (Module Voltage Input)
H1 Pin 14, H2 Pin 1, P1 Pin 1:
Module supply voltage input pin. One of these pins
must be connected to a stable supply voltage in the
range of 4.0 Volts to 5.5 Volts DC. Nominal
operating voltage is 5.0 Volts. Note backlight
brightness will be lower for voltages under 5.0V.
3.3V_OUT (3.3V Output)
H1 Pin 22, P1 Pin 2:
3.3V Output for the user, limited to approximately
100mA. Used for powering small external devices
or components.
GND (Module Ground)
H1 Pins 11 & 13, H2 Pin 7, P1 Pin 3:
Device ground pins. At least one of these pins must
be connected to ground.
RESET (Module Master Reset)
H1 Pin 20, H2 Pin 9, P1 Pin 10:
Module Master Reset pin. An active low pulse of
greater than 2μs will reset the module. Internally
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