Datasheet
4D SYSTEMS uLCD-35DT Display Module
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uLCD-35DT Display Module
(Rx) signal. This pin is 5.0V tolerant. This can be
configured to 1 of the GPIO pins, see table below.
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.
DIABLO16 Serial TTL Comm Port
Configuration Options
TX1
RX1
TX2
RX2
TX3
RX3
PA0
✓
✓
✓
PA1
✓
✓
✓
✓
✓
✓
PA2
✓
✓
✓
PA3
✓
✓
✓
✓
✓
✓
PA4
✓
✓
✓
✓
✓
✓
PA5
✓
✓
✓
✓
✓
✓
PA6
✓
✓
✓
✓
✓
✓
PA7
✓
✓
✓
✓
✓
✓
PA8
✓
✓
✓
✓
✓
✓
PA9
✓
✓
✓
✓
✓
✓
PA10
✓
✓
✓
PA11
✓
✓
✓
PA12
✓
✓
✓
✓
✓
✓
PA13
✓
✓
✓
✓
✓
✓
PA14
PA15
Please refer to the 'DIABLO16-4DGL-Internal-
Functions.pdf' document for information on how
to set the DIABLO16 pin mappings.
General Purpose I/O 4.3.
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
Digital Input
Digital Output
Bus Read
Bus Write
Analog Read
PA0
✓
✓
✓
✓
✓
PA1
✓
✓
✓
✓
✓
PA2
✓
✓
✓
✓
✓
PA3
✓
✓
✓
✓
✓
PA4
✓
✓
✓
✓
PA5
✓
✓
✓
✓
PA6
✓
✓
✓
✓
PA7
✓
✓
✓
✓
PA8
✓
✓
✓
✓
PA9
✓
✓
✓
✓
PA10
✓
✓
✓
✓
PA11
✓
✓
✓
✓
PA12
✓
✓
✓
✓
PA13
✓
✓
✓
✓
PA14
✓
✓
PA15
✓
✓
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.