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NCR RealPOS 70 - Data Write Mode (08 H, MODE); Character Write Mode (09 H, MODE)

NCR RealPOS 70
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11-10 Chapter 11: APA Customer Display Interface
Data Write Mode (08h, MODE)
Thiscommanddetermineshowincomingdataandcharacterswillbe
combinedwithexistingdatainDDRAM.
Mode Byte
Description
B7 B6 B5 B4 B3 B2 B1 B0
DATA=>DDRAM(default) x x x x x 0 0 0
DATAANDDDRAM=>DDRAM x x x x x 0 0 1
DATAORDDRAM=>DDRAM x x x x x 0 1 0
DATAXORDDRAM=>DDRAM x x x x x 0 0 1
NOTDATA=>DDRAM x x x x x 0 1 0
DATANANDDDRAM=>DDRAM x x x x x 1 0 1
DATANORDDRAM=>DDRAM x x x x x 1 1 0
DATAXNORDDRAM=>DDRAM x x x x x 1 1 1
Character Write Mode (09h, MODE)
Thiscommanddeterminesthesizeofincomingcharacters,which
DDRAMpage(s)theywillbestoredin,andenables/disablescharacter
kerning.
Mode Byte
Description
B7 B6 B5 B4 B3 B2 B1 B0
5x7charactersize(default) x x x x‐‐‐0
10x14charactersize x x x x‐‐‐1
Characterluminance25% x x x x‐0 0‐
Characterluminance50% x x x x‐0 1‐
Characterluminance75% x x x x‐1 0‐
Characterluminance100%(default) x x x x‐1 1‐
Characterkerningenabled(default) x x x x 0 ‐‐‐
Characterkerningdisabled(fixed
idth)
x x x x 1‐‐‐

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