ST7713 datasheet(47/159 Pages) SITRONIX

47 / 159 page

ST7713

Ver 1.6

2008-05

9.8.4 18-Bit Parallel Interface (IM2, IM1, IM0=“111”)

Different display data formats are available for three colors depth supported by listed below.

- 4k colors, RGB 4,4,4-bit input

- 65k colors, RGB 5,6,5-bit input

- 262k colors, RGB 6,6,6-bit input.

9.8.4.1 18-bit data bus for 12-bit/pixel (RGB 4-4-4-bit input), 4K-Colors, 3AH=“03h”

There are 1 pixel (3 sub-pixels) per 1 byte, 12-bit/pixel.

G1, Bit 3

G1, Bit 2

G1, Bit 1

G1, Bit 0

8080-series control pins

6800-series control pins

RESX

IM[2:0]

CSX

D/CX

“1”

“111”

WRX

RDX

“1”

R/WX

D15

D14

D13

D12

D11

D10

Pixel n

Pixel n+1

12 bits

18 bits

Frame memory

R1, Bit 3

R1, Bit 2

R1, Bit 1

R1, Bit 0

B1, Bit 3

B1, Bit 2

B1, Bit 1

B1, Bit 0

G2, Bit 3

G2, Bit 2

G2, Bit 1

G2, Bit 0

R2, Bit 3

R2, Bit 2

R2, Bit 1

R2, Bit 0

B2, Bit 3

B2, Bit 2

B2, Bit 1

B2, Bit 0

G3, Bit 3

G3, Bit 2

G3, Bit 1

G3, Bit 0

R3, Bit 3

R3, Bit 2

R3, Bit 1

R3, Bit 0

B3, Bit 3

B3, Bit 2

B3, Bit 1

B3, Bit 0

G4, Bit 3

G4, Bit 2

G4, Bit 1

G4, Bit 0

R4, Bit 3

R4, Bit 2

R4, Bit 1

R4, Bit 0

B4, Bit 3

B4, Bit 2

B4, Bit 1

B4, Bit 0

Pixel n+2

Pixel n+3

Look-Up Table for 4096 Color data mapping (12 bits to 18 bits)

“0”

D17

D16

Note1. The data order is as follows, MSB=D11, LSB=D0 and picture data is MSB=Bit 3, LSB=Bit 0 for Red, Green and Blue

data.

Note 2.1-times transfer is used to transmit 1 pixel data with the 12-bit color depth information.

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