Panasonic JB-3300 Technical Manual page 133

(a) 40x25 or 80x25 text mode
In the text display mode, character codes to be displayed are stored
in the even addresses of the video RAM, attribute codes are stored in
the odd addresses.
Figure 4-4 shows a video RAM configuration in the text mode.
Offset (attribute D
Addr. Character D
> L Attribute D
6 Character D
{° | Attribute C
4 Character C
3 Attribute B
2 Character B
{ Attribute A
16 Character A
yr
T T | i
ABC (Dd, i
40 or 80 columns ~
25 lines
y
PDP Screen
Figure 4-4 Video RAM Configuration in Text Mode
Figure 4-5 shows an attribute code in the text mode.
D7 6 5 4 3 1 DO Attribute Code
aT7 aT6 aTS aT4 aT3 aT2 ari aro AT7: Blinking
AT6: (B) Red
— oy 7 Y AT5: (B) Green
AT4: (B) Blue
AT3: (F) Intensity
Blink Backaround
Foreground
AT2:
(F) Red
AT1: (F) Green
ATO: (F) Blue
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