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Screen mapping of color table is provided below.
MSB
7
0
(0, 0)
1
(8, 0)
...
...
...
269
(72, 26)
(73, 26)
3.2.5. Color register settings
Color settings are located in the registers R#7 and R#12.
Bits TC3...TC0 of R#7 specify pattern color code of the pixels identified as "1" in the
bitmap values of pattern generator table, bits BD3...BD0 specify pattern color code of the
pixels identified as "0" in the bitmap values of pattern generator table as well as screen
border color. Alternate blinking color is set in R#12.
Note: screen border color is the same as the pattern backdrop color in TEXT2 mode.
3.2.6. Blink register settings
Color codes set in registers R#7 and R#12 will be alternately displayed; programmer
can control period of blinking (time on and time off) through register R#13.
←
MSB
R#13
© 1985 ASCII CORP. / NIPPON GAKKI CO.
6
5
(1, 0)
(2, 0)
(3, 0)
(9, 0)
(10, 0)
(11, 0)
...
...
...
...
...
...
...
R#12
On time
→
7
6
5
ON3 ON2 ON1 ON0
On time
4
3
2
(4, 0)
(5, 0)
(12, 0)
(13, 0)
...
...
...
...
...
...
...
...
...
...
...
...
R#7
←
Off time
4
3
2
OF3
OF2
Off time
Page 31 of 108
1
0
(6, 0)
(7, 0)
(14, 0)
(15, 0)
...
...
...
...
...
...
(79,26)
R#12
→
1
0
LSB
OF1
OF0
Blinking period
register
© 2010-2015 Eugeny Brychkov
LSB
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