Table of Contents
Advertisement
Since crystal formulations and driving voltages vary, the visual grayscale effect may or may not be linearly
related to the frame rate. For certain types of graphics, a logarithmic scale like zero, one-fourth, one-half,
and one might be more visually pleasing than a linearly spaced scale like zero, five-sixteenths,
eleven-sixteenths, and one. This flexible mapping scheme allows optimizing the visual effect for the
specific panel or application during a four-level grayscale display mode.
The Controlling Frame Rate Modulation function available in previous
versions of the DragonBall integrated processor is not available in the
MC68VZ328.
Table 8-1. Grey Palette Density
Gray Code (Hex)
Density
0
0
1
1/8
2
1/5
3
1/4
4
1/3
5
2/5
6
4/9
7
1/2
8
5/9
9
3/5
A
2/3
B
3/4
C
4/5
D
7/8
E
14/15
F
1
NOTE:
LCD Controller
LCD Controller Operation
Density (in Decimal)
0
0.125
0.2
0.25
0.333
0.4
0.444
0.5
0.555
0.6
0.666
0.75
0.8
0.875
0.933
1
8-7
Advertisement
Table of Contents
