6D326 4D SYSTEMS, 6D326 Datasheet - Page 8

• Manufacturer Part Number: 6D326
• Description: DISPLAY, TOUCH, W/CNTRL, ULCD32PTSGC
• Manufacturer: 4D SYSTEMS

Specifications of 6D326

• Viewing Area (h X W): 48.6mm X 64.8mm
• Supply Voltage: 5V
• Illumination Colour: Red / Green / Blue
• Display Mode: QVGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The uLCD-32PT(SGC) display module provides
both a hardware and a software interface to its
host. This section describes in detail the hardware
interface pins.
2.1
The uLCD-32PT(SGC) modules have a dedicated
hardware UART that can communicate with a host
micro-controller via its serial port. This is the main
interface used by the host micro-controller to
communicate with the uLCD module to send
commands and receive back data. The primary
features are:
A single byte serial transmission consists of the
start bit, 8-bits of data followed by the stop bit.
The start bit is always 0, while a stop bit is always
1. The LSB (Least Significant Bit, Bit 0) is sent out
first following the start bit. Figure below shows a
single byte transmission timing diagram.
The Serial port is also the primary interface for
updating and programming the on board PICASO-
SGC processor with PmmC files for future serial
command upgrades and enhancements. Please
refer to Section 6. Programming-System Updates
for more details.
Asynchronous Serial port Transmit pin, TX.
Connect this pin to host micro-controller Serial
Receive (Rx) signal. The host receives data from
2.
TX (Serial Transmit), J3 pin 2, J2 pin 29:
© 2010 4D Systems
µLCD-32PT(SGC)
• Full-Duplex 8 bit data transmission and
• Data format: 8 bits, No Parity, 1 Stop bit.
• Baud rates from 300 baud up to 256K baud
Hardware Interface - Pins
reception through the TX and RX pins.
(default 9600 baud).
Serial Interface - UART
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the uLCD module via this pin. This pin is 5.0V
tolerant.
Asynchronous Serial port Receive pin, RX. Connect
this pin to host micro-controller Serial Transmit
(Tx) signal. The host transmits data to the uLCD
module via this pin. This pin is 5.0V tolerant.
2.2
There are 16 general purpose Input/Output
(GPIO) pins available to the host controller via the
J1 and J2 connectors. These are grouped as
P0..P15. Each individual GPIO pin can be set as an
INPUT or an OUTPUT. The upper 8 bits (P8..P15)
are also labelled as BUS0..BUS7 and these 8-bits
provide a fast parallel data transfer to and from
external devices. For detailed usage refer to the
seperate document titled:
'PICASO-SGC-COMMANDS-SIS.pdf'.
General purpose I/O pins. Each pin can be
individually set for INPUT or an OUTPUT. Power-
Up Reset default is all INPUTS.
8-bit parallel general purpose I/O Bus.
2.3
Module supply voltage input pin. This pin must be
connected to a regulated supply voltage in the
range of 4.0 Volts to 5.5 Volts DC. Nominal
operating voltage is 5.0 Volts.
External circuitry that requires a regulated 3.3V
supply can be powered up via this pin. Maximum
available current is 400ma.
RX (Serial Receive), J3 pin 3, J2 pin 27:
P0-P15 (16 x GPIO pins), J1/J2:
BUS0-BUS7 (8bit GPIO Bus), J1/J2:
VCC (Module Voltage Input), J3 pin 1, J2 pin6:
3.3Vout (3.3V Regulated Output), J2 pins 16/18:
Note: All GPIO pins are 5.0V tolerant.
GPIO - General Purpose IO Interface
System Pins
Data Sheet
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