Base + 0
Individual Palette Entry
Unused
Blue (B)
Green (G)
Red (R)
BPP
(A)
15
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Mono (M)
Unused
A. Bits-per-pixels (BPP) is only contained within the first palette entry (palette entry 0).
Color
Bit
Bit
Mono
15
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16-Entry Palette Buffer
Palette Entry 0
Palette Entry 1
Palette Entry 14
Palette Entry 15
Bit
15
0
Base + 2
Base + 1Ch
Base + 1Eh
Unused
BPP
(A)
.
.
.
.
.
.
Functional Description
The equations shown in
are used to calculate the total frame buffer size (in bytes) based on
varying pixel size encoding and screen sizes.
and
show more detail of the palette entry organization.
Table 13-9. Frame Buffer Size According to BPP
BPP
Frame Buffer Size
1
32 + (Lines × Columns)/8
2
32 + (Lines × Columns)/4
4
32 + (Lines × Columns)/2
8
512 + (Lines × Columns)
12/16
32 + 2 × (Lines × Columns)
Figure 13-6. 16-Entry Palette/Buffer Format (1, 2, 4, 12, 16 BPP)
1111
SPRUH73H – October 2011 – Revised April 2013
LCD Controller
Copyright © 2011–2013, Texas Instruments Incorporated