GU256X128C-3900B Noritake Company Inc, GU256X128C-3900B Datasheet - Page 64

• Manufacturer Part Number: GU256X128C-3900B
• Description: MODULE VF GRAPHIC DISPLY 256X128
• Manufacturer: Noritake Company Inc

Specifications of GU256X128C-3900B

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

5
5.1
5.1.1 Graphic display
5.2
5.3
Graphic DMA mode (Applicable for Parallel interface only)
Displayable image types
Depends on model – refer to 3 VFD Module model-specific information.
Display Memory
Size: Refer to 3.2 Display Memory configuration.
The portion of memory which is displayed is selected using the “Display start address” command.
Display Memory is a roll configuration. In areas of the display screen that would exceed the Display
Memory, the contents from 0000h are displayed.
Example for 256×64 dot module:
Protocol
High-speed graphic display is possible by using the parallel interface for data input.
The Graphic DMA mode protocol is described below.
Display waits until a valid “Header (STX)” + “Header 2” combination is received. The module only
processes packets with an address that matches the display's address set by DIP-SW + MSW.
Using this mode, a maximum of 255 displays, addressed by DIP-SW and MSW settings, can be
controlled individually.
Packets addressed to FFh are processed by all connected displays.
STX (02h)
Header 1
1 byte
D7
D6
D5
D4
D3
D2
D1
D0
y 0
Header 2
1
7
1 byte
44h
x
0 1 255 256 510 511
00h – FFh
- 64 -
Address
1 byte
256 dots
GU-3900B series “General Function” Software Specification
512 dots
Command/Data
00h – FFh
n byte(s)
64 dots