ARM ARM DUI 0224I manual Svga 800x600 on Svga 36MHz, 0x2CAC, Epson 2.2in panel Qcif 10MHz, 0x2C2A

Models: ARM DUI 0224I

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Programmer’s Reference

Table 4-29 Values for different display resolutions (continued)

 

CLCDCLK frequency

CLCD_TIM0

CLCD_TIM1

CLCD_TIM2

Display resolution

and SYS_OSCCLK4

register at

register

register at

 

register value

0x10120000

0x10120004

0x10120008

 

 

 

 

 

SVGA (800x600) on SVGA

36MHz, 0x2CAC

0x1313A4C4

0x0505F657

0x071F1800

 

 

 

 

 

Epson 2.2in panel QCIF (176x220)

10MHz, 0x2C2A

0x00000128

0x000000DB

0x04AF1800

 

 

 

 

 

Sanyo 3.8in panel QVGA

10MHz, 0x2C2A

0x0505054C

0x050514EF

0x053F1800

(320x240)

 

 

 

 

 

 

 

 

 

The mapping of the 32 bits of pixel data in memory to the RGB display signals depends on the resolution and display mode. Table 4-30 lists software usage of memory bits and Table 4-31 on page 4-51 lists the correspondence between the hardware pins and the bits in memory.

Note

For resolutions based on 16 bits per pixel, two pixels (pixel0 and pixel1) are encoded in one 32-bit word.

Rx, Gx, and Bx in Table 4-30 and Table 4-31 on page 4-51 refer to bits used to set the red, green, and blue brightness.

Table 4-30 Assignment of display memory to R[7:0], G[7:0], and B[7:0]

Memory

8/8/8

1/5/5/5

5/6/5 red (lsb)

5/6/5 blue (lsb)

bit

 

 

 

 

 

 

 

 

 

31

unused

pixel1 I (intensity)

pixel1 B5 (msb)

pixel1 R5 (msb)

 

 

 

 

 

30

unused

pixel1 B5 (msb)

pixel1 B4

pixel1 R4

 

 

 

 

 

29

unused

pixel1 B4

pixel1 B3

pixel1 R3

 

 

 

 

 

28

unused

pixel1 B3

pixel1 B2

pixel1 R2

 

 

 

 

 

27

unused

pixel1 B2

pixel1 B1 (lsb)

pixel1 R1 (lsb)

 

 

 

 

 

26

unused

pixel1 B1 (lsb)

pixel1 G5 (msb)

pixel1 G5 (msb)

 

 

 

 

 

25

unused

pixel1 G5 (msb)

pixel1 G4

pixel1 G4

 

 

 

 

 

24

unused

pixel1 G4

pixel1 G3

pixel1 G3

 

 

 

 

 

ARM DUI 0224I

Copyright © 2003-2010 ARM Limited. All rights reserved.

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ARM ARM DUI 0224I manual Svga 800x600 on Svga 36MHz, 0x2CAC, Epson 2.2in panel Qcif 10MHz, 0x2C2A, 320x240