ST7735R
V0.2 62 2009-08-05
9.11 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.
Figure 9.11.1Data streaming order
9.11.1 When 128RGBx160 (GM= “11”)
MV
MX
MY
CASET RASET
0 0 0 Direct to Physical Column Pointer Direct to Physical Row Pointer
0 0 1 Direct to Physical Column Pointer Direct to (159-Physical Row Pointer)
0 1 0 Direct to (127-Physical Column Pointer) Direct to Physical Row Pointer
0 1 1 Direct to (127-Physical Column Pointer) Direct to (159-Physical Row Pointer)
1 0 0 Direct to Physical Row Pointer Direct to Physical Column Pointer
1 0 1 Direct to (159-Physical Row Pointer) Direct to Physical Column Pointer
1 1 0 Direct to Physical Row Pointer Direct to (127-Physical Column Pointer)
1 1 1 Direct to (159-Physical Row Pointer) Direct to (127-Physical Column Pointer)
9.11.2 When 132RGBx162 (GM= “00”)
MV
MX
MY
CASET RASET
0 0 0 Direct to Physical Column Pointer Direct to Physical Row Pointer
0 0 1 Direct to Physical Column Pointer Direct to (161-Physical Row Pointer)
0 1 0 Direct to (131-Physical Column Pointer) Direct to Physical Row Pointer
0 1 1 Direct to (131-Physical Column Pointer) Direct to (161-Physical Row Pointer)
1 0 0 Direct to Physical Row Pointer Direct to Physical Column Pointer
1 0 1 Direct to (161-Physical Row Pointer) Direct to Physical Column Pointer
1 1 0 Direct to Physical Row Pointer Direct to (131-Physical Column Pointer)
1 1 1 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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