ST7789 datasheet(76/316 Pages) SITRONIX

76 / 316 page

ST7789VI

Version 1.4

Page 76 of 315

2014/04

Sitronix Confidential

The information contained herein is the exclusive property of Sitronix and shall not be distributed, reproduced, or

disclosed in whole or in part without prior written permission of Sitronix.

8.8.9

16-bit data bus for 12-bit/pixel (RGB 4-4-4-bit input), 4K-Colors, 3Ah=”03h”

There is 1pixel (3 sub-pixels) per 1byte

G1, Bit 3

G1, Bit 2

G1, Bit 1

G1, Bit 0

8080-series control pins

RESX

CSX

D/CX

“1”

WRX

RDX

“1”

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)

Note 1: 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 (D11 to D0) is used to transmit 1 pixel data with the 12-bit color depth information.

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