P0307 Terasic Technologies Inc, P0307 Datasheet - Page 37

• Manufacturer Part Number: P0307
• Description: KIT DEV 4.3" LCD TOUCH PANEL
• Manufacturer: Terasic Technologies Inc

Specifications of P0307

• Accessory Type: NTSC/PAL TV Player
• For Use With/related Products: DE2, DE1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: TRDB_LTM

R10h:
R10[5:0]: B Offset of Brightness
R11h ~ R1Fh: Gamma Correction
segments are defined with 12 register values for level 0, 8, 16, 32, 64, 96,128, 192, 224,
240, 248, and 256 for positive polarity. Negative polarity data are generated
symmetrically. The gamma correction output is then fed to 8-bit DAC and OP to drive the
source lines on the panel.
R20h : Voltage range for positive polarity (when VDDP=5V and VDDN=-5V)
R20[7:4] defines positive polarity DAC reference voltage for code FFH
R20[7:4] 0x0
Gamma
The gamma correction is done by 11-segment piecewise linear interpolation. The 11
R10[5:0]
3.3
0x00
0x10
0x3F
0x1
3.4
0x2
3.5
0x3
3.6
B Offset of Brightness
0x4
3.7
0x5
3.8
35
-16
47
0
0x6
3.9
0x7
4
0x8
Default (initial setting value)
4.1
0x9
4.2
0xA 0xB
4.3
Note
4.4
0xC
4.5
(Default)
0xD
4.6
Appendix
0xE 0xF
4.7
4.8