4D SYSTEMS
TURNING TECHNOLOGY INTO ART
PICASO Processor
DATASHEET
Embedded Graphics Processor
Document Date: 15
th
January 2013
Document Revision: 1.1
Uncontrolled Copy when printed or downloaded.
Please refer to the 4D Systems website for the latest Revision of this document
Contents
1. Description ............................................................................................................................. 3
2. Features ................................................................................................................................. 3
3. Applications ........................................................................................................................... 4
4. Pin Configuration and Summary .............................................................................................. 5
5. Pin Description ....................................................................................................................... 8
5.1. Display Interface .................................................................................................................................... 8
5.2. SPI Interface – Memory Card ................................................................................................................. 9
5.3. Serial Ports - COM0, COM1 UARTS ........................................................................................................ 9
5.4. Audio Interface ..................................................................................................................................... 10
5.5. Touch Screen Interface ........................................................................................................................ 10
5.6. GPIO - General Purpose IO ................................................................................................................... 10
5.7. System Pins .......................................................................................................................................... 11
PICASO PROCESSOR
6. 4DGL - Software Language .................................................................................................... 12
7. In Circuit Serial Programming ICSP ........................................................................................ 12
8. PICASO Architecture ............................................................................................................. 13
9. System Registers Memory Map ............................................................................................. 14
10. Memory Cards - FAT16 Format ............................................................................................ 16
11. Hardware Tools .................................................................................................................. 16
11.1. 4D Programming Cable ...................................................................................................................... 16
11.2. Evaluation Display Modules ............................................................................................................... 16
12. 4D Systems - Workshop 4 IDE .............................................................................................. 17
12.1. Workshop 4 – Designer Environment ................................................................................................ 17
12.2. Workshop 4 – ViSi Environment......................................................................................................... 17
12.3. Workshop 4 – ViSi Genie Environment .............................................................................................. 18
12.4. Workshop 4 – Serial Environment...................................................................................................... 18
13. Reference Design ................................................................................................................ 19
14. Package Details................................................................................................................... 20
15. PCB Land Pattern ............................................................................................................... 21
16. Specifications and Ratings ................................................................................................... 22
17. Legal Notice ........................................................................................................................ 23
18. Contact Information............................................................................................................ 23
4D SYSTEMS
PICASO Processor
1. Description
The PICASO Processor is a custom embedded 4DGL
graphics controller designed to interface with
many popular OLED and LCD display panels.
Powerful graphics, text, image, animation and
countless more features are built right inside the
chip. It offers a simple plug-n-play interface to
many 16-bit 80-Series colour LCD and OLED
displays.
The chip is designed to work with minimal design
effort and all of the data and control signals are
provided by the chip to interface directly to the
display. Simply choose your display and interface it
to the PICASO on your application board. This
offers enormous advantage to the designer in
development time and cost saving and takes away
all of the burden of low level design.
The PICASO belongs to a family of processors
powered by a highly optimised soft core virtual
engine, EVE (Extensible Virtual Engine). EVE is a
proprietary, high performance virtual processor
with an extensive byte-code instruction set
optimised to execute compiled 4DGL programs.
4DGL (4D Graphics Language) was specifically
developed from ground up for the EVE engine
core. It is a high level language which is easy to
learn and simple to understand yet powerful
enough to tackle many embedded graphics
applications.
The device offers modest but comprehensive I/O
features and can interface to I2C, serial, digital,
buttons, joystick and many more. Provision is also
made for a dedicated PWM audio output that
supports audio WAV files and complex sound
generation.
All of the display built-in driver libraries implement
and share the same high-level function interface.
This allows your GUI application to be portable to
different display controller types.
4D Systems software development IDE called
Workshop 4 is FREE and there are no licensing
requirements.
The PICASO Processor offers one of the most
flexible embedded graphics solutions available.
2. Features
•
Low-cost OLED, LCD and TFT display graphics
user interface solution.
•
Ideal as a standalone embedded graphics
processor or interface to any host controller as a
graphics co-processor.
•
Connect to any colour display that supports an
80-Series 16 bit wide CPU interface. All data and
control signals are provided.
•
Built in high performance virtual processor core
(EVE) with an extensive byte-code instruction
set optimised for 4DGL, the high level 4D
Graphics Language.
•
Comprehensive set of built in graphics and
multimedia services.
•
Display full colour images, animations, icons and
video clips.
•
14KB of Flash memory for user code storage
and 14KB of SRAM for user variables.
•
13 Digital I/O pins.
•
I2C interface (Master).
•
D0….D15, RD, WR, RS, CS – Display interface
•
FAT16 file services.
•
2 Asynchronous hardware serial ports with
Auto-Baud feature.
•
SPI interface support for SDHC/SD memory card
for multimedia storage and data logging
purposes (micro-SD with up to 2GB and SDHC
memory cards starting from 4GB and above).
•
4-Wire Resistive Touch panel interface.
•
Audio support for wave files and complex sound
generation with a dedicated 16-bit PWM audio
output.
•
8 x 16 bit timers with 1 millisecond resolution.
•
Single 3.3 Volt Supply @25mA typical.
•
Available in a 64 pin TQFP 10mm x 10mm
package.
•
RoHS compliant.
PICASO PROCESSOR
©
2012 4D SYSTEMS
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4D SYSTEMS
PICASO Processor
3. Applications
•
General purposes embedded graphics.
•
Elevator control systems.
•
Point of sale terminals.
•
Electronic gauges and metres.
•
Test and measurement and general purpose
instrumentation.
•
Industrial control and Robotics.
•
Automotive system displays.
•
GPS navigation systems.
•
Medical Instruments and applications.
•
Home appliances and Smart Home Automation.
•
Security and Access control systems.
•
Gaming equipment..
•
Aviation systems.
•
HMI with touch panels.
PICASO PROCESSOR
©
2012 4D SYSTEMS
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4D SYSTEMS
PICASO Processor
4. Pin Configuration and Summary
PICASO PROCESSOR
Pin
1
2
3
4
5
6
7
8
9, 20, 25, 41
10, 19, 26,
38, 57
Symbol
IO1
XR
YU
SCK
SDI
SDO
RESET
SDCS
GND
VCC
PICASO Processor Pin Out
I/O Description
I/O
A
A
O
I
O
I
O
P
P
General Purpose IO1 pin. This pin is 5.0V tolerant.
4-Wire Resistive Touch Screen Right signal. Connect this pin to XR or X+
signal of the touch panel.
4-Wire Resistive Touch Screen Up signal. Connect this pin to YU or Y+ signal
of the touch panel.
SPI Serial Clock output. SD memory card use only. Connect this pin to the SPI
Serial Clock (SCK) signal of the memory card.
SPI Serial Data Input. SD memory card use only. Connect this pin to the SPI
Serial Data Out (SDO) signal of the memory card.
SPI Serial Data Output. SD memory card use only. Connect this pin to the SPI
Serial Data In (SDI) signal of the memory card.
Master Reset signal. Connect a 4.7K resistor from this pin to VCC.
SD Memory-Card Chip Select. SD memory card use only. Connect this pin to
the Chip Enable (CS) signal of the memory card.
Device Ground.
Device Positive Supply.
I = Input, O = Output, P = Power, A = Analogue
©
2012 4D SYSTEMS
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