Integrated Functions (Continued)
.
Table 4-25. TFT Panel Display Modes (Note 1)
DCLK
Rate
PCLK
Rate
Refresh
Simultaneous
Colors
Rate
(Hz)
(MHz)
(Note 2)
(MHz)
(Note 3)
Panel
Type
Maximum Displayed
Colors (Note 4)
Resolution
640x480
(Note 5)
8-bpp
256 colors out of a
palette of 256
60
60
60
60
50.35
50.35
80.0
25.175
25.175
40.0
9-bit
573 = 185,193
12-bit
18-bit
9-bit
613 = 226,981
43 = 262,144
16-bpp
64 KB colors
5-6-5
29x57x29 = 47,937
31x61x31 = 58,621
32x64x32 = 65,535
573 = 185,193
12-bit
18-bit
9-bit
800x600
(Note 5)
8-bpp
256 colors out of a
palette of 256
12-bit
18-bit
9-bit
613 = 226,981
643 = 262,144
16-bpp
64 KB Colors
5-6-5
80.0
40.0
29x57x29 = 47,937
31x61x31 = 58,621
32x64x32 = 65,535
573 = 185,193
12-bit
18-bit
9-bit/18-I/F
1024x768
8-bpp
256 colors out of a
palette of 256
60
60
65
65
65.0
65.0
16-bpp
9-bit/18-I/F
29x57x29 = 47,937
64 KB colors
5-6-5
Notes: 1. This list is not meant to be an complete list of all the possible supported TFT display modes.
2. DCLK is the input clock from the Geode I/O companion. In some cases, DCLK is doubled to keep the
Geode I/O companion’s PLL in a desired operational range.
3. PCLK is the graphics output clock to the Geode I/O companion.
4. 9-bit and 12-bit panels use FRM and dither to increase displayed colors. (See Section 4.5.5 “Dither and
Frame Rate Modulation” on page 136.)
5. All 640x480 and 800x600 modes can be run in simultaneous display with CRT
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