LCD1

LCD1 Controller

The LCD1 Graphics display controller for MicroBus systems adds graphics LCD display to any MicroBus system. It supports most monochrome graphics (black and white, one bit per pixel) displays from 128 X 64 up to VGA format: 640 X 480. LCD1 includes the display controller, display memory, and LCD power supply and brightness controls.

There are three versions of LCD1 to allow support of the many panels available. LCD1-3 supports LCDs with Epson type interfaces. LCD1-4 Supports LCDs with Seiko and Optrex interfaces and most 1/4VGA (320 X 240) panels. LCD1-6 supports most manufacturers 480 X 640 LCD panels. LCD1 is easy to set up, requiring only a simple clock adjustment and jumper setting to establish the timing for the LCD panel. To change versions of LCD1, only a socketed 8 pin PROM needs to be changed. These can be obtained from MicroBus separately.

LCD1 controllers accept pixel coordinates in direct H and V values. ALU hardware enables them to perform pixel set, clear, and XOR operations, or byte write and byte XOR operations. The result is that drawing operations are fast and efficient. Figure 1 is a block diagram for LCD1. The table below show which panels are supported by each version

LCD1 Version	LCD Panels Supported
LCD1-2	All Epson monocrome panels
LCD1-3	Optrex, Seiko, Hantronix, and others all ź VGA 320 X 240monochrome panels
LCD1-4	All VGA 640 X 480 Monochrome Panels

All LCD1 controllers include display RAM, the LCD -Vee power supply, and provisions for both manual and programmable contrast adjustments. Graphic software libraries are provided with drawing primitives (lines, circles, ellipses and rectangles) and character font and string display. Examples of graphical user interfaces (GUIs) are provided. The graphics library is written in C and occupies only about 4K bytes of code space.

LCD1 block.gif (13213 bytes)

LCD1 Features

	LCD1-3 supports Epson LCDs from 128 X 64 to 640 X 200
	LCD1-4 supports Seiko, Optrex, Hantronix and other LCDs from 128 X 64 to 640 X 200, 1/4 VGA (320 X 240)

	LCD1-6 supports most 640 X 480 monochrome
	Direct register mapping and hardware functions speed drawing operations
	Screen addressing is in X-Y coordinates
	Pixel and Byte drawing operations in hardware
	Programmable frequency clock source
	Simple and consistent drawing operations across all LCD1 LCD controllers.
	64k display memory for up to 640 X 480 display\
	Programmable or manual (external variable resistor) Vee supply from 0 to -22V
	Programmable contrast adjust
	MicroBus Interface
	Graphics Software library in C including: o Pixel Set o Byte Set o Line Draw o Circle / Ellipse draw o Variable sized character fonts o String display o Rectangular area fill o Bit Blit: image transfer from image

Data Sheets and Manuals

	LCD1 Controller Users Manual
	LCD1 Data Sheet

Pricing

LCD1 Version	Qty. 1	Qty. 10	Qty. 100
LCD1-2	$89	$79	$75
LCD1-3	$89	$79	$75
LCD1-4	$89	$79	$75

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LCD1 Features

Data Sheets and Manuals

Pricing

Copyright Š 2003 Micro Boards Inc. Last modified: August 08, 2003

Copyright Š 2003 Micro Boards Inc.
Last modified: August 08, 2003