ST7735 datasheet(59/166 Pages) SITRONIX

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ST7735

V1.7

2009-12-04

9.10 Memory Data Write/ Read Direction

The data is written in the order illustrated above. The Counter which dictates where in the physical memory the data is to be

written is controlled by “Memory Data Access Control” Command, bits B5 (MV), B6 (MX), B7 (MY) as described below.

Fig. 9.10.1 Data streaming order

9.10.1 When 128RGBx160 (GM= “011”)

CASET

RASET

Direct to Physical Column Pointer

Direct to Physical Row Pointer

Direct to Physical Column Pointer

Direct to (159-Physical Row Pointer)

Direct to (127-Physical Column Pointer)

Direct to Physical Row Pointer

Direct to (127-Physical Column Pointer)

Direct to (159-Physical Row Pointer)

Direct to Physical Row Pointer

Direct to Physical Column Pointer

Direct to (159-Physical Row Pointer)

Direct to Physical Column Pointer

Direct to Physical Row Pointer

Direct to (127-Physical Column Pointer)

Direct to (159-Physical Row Pointer)

Direct to (127-Physical Column Pointer)

9.10.2 When 132RGBx162 (GM= “000”)

CASET

RASET

Direct to Physical Column Pointer

Direct to Physical Row Pointer

Direct to Physical Column Pointer

Direct to (161-Physical Row Pointer)

Direct to (131-Physical Column Pointer)

Direct to Physical Row Pointer

Direct to (131-Physical Column Pointer)

Direct to (161-Physical Row Pointer)

Direct to Physical Row Pointer

Direct to Physical Column Pointer

Direct to (161-Physical Row Pointer)

Direct to Physical Column Pointer

Direct to Physical Row Pointer

Direct to (131-Physical Column Pointer)

Direct to (161-Physical Row Pointer)

Direct to (131-Physical Column Pointer)

Note: Data is always written to the Frame Memory in the same order, regardless of the Memory Write Direction set by MADCTL bits B7

(MY), B6 (MX), B5 (MV). The write order for each pixel unit is

One pixel unit represents 1 column and 1page counter value on the Frame Memory.

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