Datasheet
4D SYSTEMS µVGA-III
© 2012 4D SYSTEMS Page 9 of 19 www.4dsystems.com.au
microVGA – VGA GRAPHICS ENGINE
5. Firmware / PmmC Programming
The PICASO processor used in the μVGA-III module
is a custom graphics controller. All functionality
including the high level commands are built into
the chip. This chip level configuration is available
as a Firmware/PmmC (Personality-module-micro-
Code) file.
A PmmC file contains all of the low level micro-
code information (analogy of that of a soft silicon)
which define the characteristics and functionality
of the device. The ability of programming the
device with a PmmC file provides an extremely
flexible method of customising as well as
upgrading it with future enhancements.
A PmmC file can only be programmed into the
device via its COM0 serial port. Figure below
provides a typical implementation for the PmmC
programming interface.
The PmmC file is programmed into the device with
the aid of Workshop 4, the 4D Systems IDE
software (See Section 9). To provide a link
between the PC and the ICSP interface, a specific
4D Programming Cable is required and is available
from 4D Systems.
Using a non-4D programming interface could
damage your display, and void your Warranty.
6. Module Features
The μVGA-III module is designed to accommodate
most applications. Some of the main features of
the module are listed below.
VGA - Interface 6.1.
The μVGA-III module can be interfaced with a VGA
Monitor or a screen with VGA interface. The VGA
interface consists of R, G, B, Vsync, Hsync and
Clock signals.
The display resolution should match with the
μVGA-III resolution. If the display supports
multiple resolutions then set it to “Auto detect” or
manually set the resolution to match the module.
Following VGA resolutions are supported:
• 320 x 240
• 640 x 480
• 800 x 480
PICASO Processor 6.2.
The module is designed around the PICASO
Graphics Processor from 4D-Labs.
The PICASO is a smart Controller and the interface
to the TFT- LCD displays is almost plug-n-play.
All of the data and control signals are provided by
the chip to interface directly to the display.
Powerful graphics, text, image, animation and
countless more features are built right inside the
chip.
The data sheet for the processor is available from
the http://www.4dsystems.com.au website:
“PICASO-DS-revx.pdf”
4D Programming
Cable