GU256X128C-3900B Noritake Company Inc, GU256X128C-3900B Datasheet - Page 65

• 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

5.4
5.4.1 Command Details
5.4.1.1
Bit image write
BOX Area Bit Image Write
Display start address
Display synchronous
Brightness level
Code:
Command Name
Commands
Definable area: 00h ≤ DAD ≤ FFh
Function:
If the Write address or Write size are outside the definable area, the command (STX to sH) is
cancelled, and the display waits for the next header (STX).
During Bit image write, data from the host is transferred to the Display Memory using DMA. This
may result in a flickering display if a large volume of data is written at high speed. If display flickering
occurs, ensure that data writing is in accordance with the timing requirements described in the
hardware specification at “Parallel interface timing 2”.
STX 44h DAD 46h aL aH sL sH d(1)...d(s) (Bit image write)
02h 44h DAD 46h aL aH sL sH d(1)...d(s)
DAD: Display address
aL:
aH:
sL:
sH:
d(1)–d(s):
Write bit image data to the specified address.
Bit image write address, lower byte
Bit image write address, upper byte
Bit image write size, lower byte
Bit image write size, upper byte
0000h ≤ (aL + aH×100h) ≤ Max_DispMemAddr
0001h ≤ (sL + sH×100h) ≤ DispMemSize
(aL + aH×100h) + (sL + sH×100h) ≤ DispMemSize
00h ≤ d ≤ FFh
02h,44h,DAD,46h,
aL,aH,sL,sH,
d(1)...d(s)
02h,44h,DAD,42h,
aL,aH,
sXL,sXH,sYL,sYH,
d(1)...d(s)
02h,44h,DAD,53h,
aL,aH
02h,44h,DAD,57h,
01h
02h,44h,DAD,58h,
n
Hex Code
Bit image data
Write bit image data to the specified address.
DAD: Display address
aL:
aH: Bit image write address, upper byte
sL:
sH: Bit image write size, upper byte
d(1)...d(s): Bit image data
Write bit image data to the specified area.
DAD: Display address
aL:
aH: Bit image write start address, upper byte
sXL: Bit image write size X, lower byte
sXH: Bit image write size X, upper byte
sYL: Bit image write size Y, lower byte
sYH: Bit image write size Y, upper byte
d(1)...d(s): Bit image data
Set the Display start address.
DAD: Display address
aL:
aH: Display start address, upper byte
Synchronizes the next command with internal display
refresh cycle.
Set brightness level.
DAD: Display address
n: Brightness level setting
n=00h:
n=03h: 75%
n=10h:
n=13h: 37.5%
n=16h: 75%
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Bit image write address, lower byte
Bit image write size, lower byte
Bit image write start address, lower byte
Display start address, lower byte
GU-3900B series “General Function” Software Specification
0%
0%
n=01h: 25%
n=04h: 100%
n=11h: 12.5%
n=14h: 50%
n=17h: 87.5%
Operation
n=02h: 50%
n=12h: 25%
n=15h: 62.5%
n=18h: 100%
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