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7-22 Intel® PXA255 Processor Developer’s Manual
LCD Controller
† Double-pixel data mode (DPD) = 1.
Color Dual Passive
Top L_DD[7:0]
Bottom L_DD[15:8]
Color Single Active Whole L_DD[15:0]
Table 7-2. LCD Controller Data Pin Utilization (Sheet 2 of 2)
Color/Monochrome
Panel
Single/
Dual Panel
Passive/
Active Panel
Screen Portion Pins
Figure 7-18. LCD Data-Pin Pixel Ordering
LDD[0] LDD[1] LDD[2] LDD[3] LDD[0] LDD[1] LDD[2] LDD[3] LDD[0]
Top Left Corner of Screen
Column 0 Column 1 Column 2 Column 3 Column 4 Column 5 Column 6 Column 7 Column 8
Row 0
Row 1
Row 2
Row 3
LDD[0] LDD[1] LDD[2] LDD[3] LDD[0] LDD[1] LDD[2] LDD[3] LDD[0]
LDD[0] LDD[1] LDD[2] LDD[3] LDD[0] LDD[1] LDD[2] LDD[3] LDD[0]
LDD[0] LDD[1] LDD[2] LDD[3] LDD[0] LDD[1] LDD[2] LDD[3] LDD[0]
Passive Monochrome Single-Panel Display Pixel Ordering
LDD[0] LDD[1] LDD[2] LDD[3] LDD[4] LDD[5] LDD[6] LDD[7] LDD[0]
Top Left Corner of Screen
Column 0 Column 1 Column 2 Column 3 Column 4 Column 5 Column 6 Column 7 Column 8
Row 0
Row 1
Row 2
Row 3
LDD[0] LDD[1] LDD[2] LDD[3] LDD[4] LDD[5] LDD[6] LDD[7] LDD[0]
LDD[0] LDD[1] LDD[2] LDD[3] LDD[4] LDD[5] LDD[6] LDD[7] LDD[0]
LDD[0] LDD[1] LDD[2] LDD[3] LDD[4] LDD[5] LDD[6] LDD[7] LDD[0]
Passive Monochrome Single-Panel Double-Pixel Display Pixel Ordering
LDD[7] LDD[6] LDD[0] LDD[7] LDD[1] LDD[0] LDD[7]
Top Left Corner of Screen
Column 0 Column 0 Column 2 Column 2 Column 4 Column 5 Column 5
Row 0
Row 1
Row n/2
Row n/2+1
LDD[7] LDD[6] LDD[0] LDD[7] LDD[1] LDD[0] LDD[7]
LDD[15] LDD[14] LDD[8] LDD[15] LDD[9] LDD[8] LDD[15]
LDD[15] LDD[14] LDD[8] LDD[15] LDD[9] LDD[8] LDD[15]
LDD<7> LDD<6> LDD<5> LDD<4> LDD<3> LDD<2> LDD<1> LDD<0> LDD<7>
Top Left Corner of Screen
Column 0 Column 0 Column 0 Column 1 Column 1 Column 1 Column 2 Column 2 Column 2
Row 0
Row 1
Row 2
Row 3
LDD<7> LDD<6> LDD<5> LDD<4> LDD<3> LDD<2> LDD<1> LDD<0> LDD<7>
LDD<7> LDD<6> LDD<5> LDD<4> LDD<3> LDD<2> LDD<1> LDD<0> LDD<7>
LDD<7> LDD<6> LDD<5> LDD<4> LDD<3> LDD<2> LDD<1> LDD<0> LDD<7>
Passive Color Single-Panel Display Pixel Ordering
Red Green Blue
Red
Green
Blue Red
Green
Blue
Red Green
Green Blue Blue Red Green
LDD<0> LDD<1> LDD<3>
LDD<0> LDD<2> LDD<3> LDD<0>
Top Left Corner of Screen
Row 0
Row 1
Row n/2
Row n/2+1
LDD<0> LDD<1> LDD<3> LDD<0> LDD<2> LDD<3> LDD<0>
LDD<2>
LDD<1>
LDD<2> LDD<1>
LDD<4> LDD<5> LDD<7>
LDD<4> LDD<6> LDD<7> LDD<4>
LDD<4> LDD<5> LDD<7> LDD<4> LDD<6> LDD<7> LDD<4>
LDD<6>
LDD<5>
LDD<6> LDD<5>
Column 0 Column 1 Column 2 Column 3 Column 4 Column 5 Column 6 Column 7 Column 8
Passive Color Dual-Panel Display Pixel Ordering
Passive Monochrome Dual-Panel Display Pixel Ordering
n = # of rows
n = # of rows