100
DS508UM1
6.17.4
FBADDR — LCD Frame Buffer Start Address Register
ADDRESS: 0x8000.1000
This register contains the start address for the LCD Frame Buffer. It is assumed that the frame buffer
starts at location 0x000.0000 within each chip select memory region. Therefore, the value stored with-
in the FBADDR register is only the value of the chip select where the frame buffer is located. On reset,
this will be set to 0xC. The register is 4 bits wide (bits [0-3]). This register must only be reprogrammed
when the LCD is disabled (i.e., setting the LCDEN bit within SYSCON2 low).
Grayscale Value
Duty Cycle
% Pixels Lit
% Step Change
0
0
0%
11.1%
1
1/9
11.1%
8.9%
2
1/5
20.0%
6.7%
3
4/15
26.7%
6.6%
4
3/9
33.3%
6.7%
5
2/5
40.0%
5.4%
6
4/9
44.4%
5.6%
7
1/2
50.0%
0.0%
8
1/2
50.0%
5.6%
9
5/9
55.6%
5.4%
10
3/5
60.0%
6.7%
11
6/9
66.7%
6.6%
12
11/15
73.3%
6.7%
13
4/5
80.0%
8.9%
14
8/9
88.9%
11.1%
15
1
100%
Table 54. Grayscale Value to Color Mapping
Summary of Contents for EP7312
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