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CS9210 数据表(PDF) 14 Page - National Semiconductor (TI) |
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CS9210 数据表(HTML) 14 Page - National Semiconductor (TI) |
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14 / 39 page  www.national.com 14 Revision 3.2 Functional Description (Continued) Table 3-2 shows the mapping of the data in the three sup- ported modes. The notation "UG1", for example, repre- sents the bit value for the green component of pixel number 1 for the upper panel data. Note that exactly 2 and 2/3 pixels are presented to the panel per SHFCLK in 16- bit DSTN mode. The 16-bit DSTN mode pixel data sequence shown in Table 3-2 would start on the next SHFCLK with UB2 and LB2 followed by the bit values for the red, green, and blue components of pixel 3. The mode selection is dictated by the panel type. A panel with a 1024x768 pixel resolution cannot be made to run at an 800x600 resolution by changing the mode selection from 24-bit DSTN to 16-bit DSTN. Also note that the 16-bit/24-bit designation applies to the width of the data presented every SHFCLK to the DSTN panel on the UD/LD outputs. The 16-bit/24-bit designation has nothing to do with bits-per-pixel. 3.2 2X REFRESH MODE When 2X refresh mode is enabled, each incoming frame of screen data is duplicated or displayed twice on the LCD panel. The rate at which frames are displayed to the panel is twice the incoming frame rate. Higher refresh rates improve picture quality and help to reduce any flickering effects caused by frame rate modulation. Table 3-2. Panel Output Signal Mapping Note: An "Unused" panel output is driven low at all times. LCD Outputs 16-Bit DSTN 24-Bit DSTN TFT Pass- Through Mode UD11 Unused UR0 Unused UD10 Unused UG0 Unused UD9 Unused UB0 Unused UD8 Unused UR1 Unused UD7 UR0 UG1 RED0 UD6 UG0 UB1 RED1 UD5 UB0 UR2 RED2 UD4 UR1 UG2 GREEN0 UD3 UG1 UB2 BLUE2 UD2 UB1 UR3 RED3 UD1 UR2 UG3 GREEN3 UD0 UG2 UB3 BLUE3 LD11 Unused LR0 Unused LD10 Unused LG0 Unused LD9 Unused LB0 BLUE5 LD8 Unused LR1 GREEN5 LD7 LR0 LG1 GREEN1 LD6 LG0 LB1 GREEN2 LD5 LB0 LR2 BLUE0 LD4 LR1 LG2 BLUE1 LD3 LG1 LB2 RED4 LD2 LB1 LR3 GREEN4 LD1 LR2 LG3 BLUE4 LD0 LG2 LB3 RED5 LP LP LP FP_HSYNC FLM FLM FLM FP_VSYNC SHFCLK SHFCLK SHFCLK DOTCLK DISPOFF# DISPOFF# DISPOFF# ENA_DISP FP_VDDEN FP_VDDEN FP_VDDEN ENA_VDDIN FP_VCONEN FP_VCONEN FP_VCONEN ENA_LCDIN |
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