
ST7735R
V0.2
118
2009-08-05
10.1.30 COLMOD (3Ah): Interface Pixel Format
3AH
COLMOD (3Ah): Interface Pixel Format
Inst / Para
D/CX
WRX
RDX
D17-8
D7
D6
D5
D4
D3
D2
D1
D0
HEX
COLMOD
0
↑
1
-
0
0
1
1
1
0
1
0
(3Ah)
Parameter
1
↑
1
-
-
-
-
-
-
IFPF2
IFPF1
IFPF0
Description
This command is used to define the format of RGB picture data, which is to be transferred via the
MCU interface. The formats are shown in the table:
IFPF[2:0]
MCU Interface Color Format
011
3
12-bit/pixel
101
5
16-bit/pixel
110
6
18-bit/pixel
111
7
No used
Note1: In 12-bit/Pixel, 16-bit/Pixel or 18-bit/Pixel mode, the LUT is applied to transfer data into the Frame Memory.
Note2: The Command 3Ah should be set at 55h when writing 16-bit/pixel data into frame memory, but 3Ah should be
re-set to 66h when reading pixel data from frame memory. Please check the LUT in chapter 9.17 when using
memory read function.
Register
Availability
Status
Availability
Normal Mode On, Idle Mode Off, Sleep Out
Yes
Normal Mode On, Idle Mode On, Sleep Out
Yes
Partial Mode On, Idle Mode Off, Sleep Out
No
Partial Mode On, Idle Mode On, Sleep Out
No
Sleep In
Yes
Default
Status
Default Value
IFPF[2:0]
VIPF[3:0]
Power On Sequence
0110(18-bit/Pixel)
0110(18-bit/Pixel)
S/W Reset
No Change
No Change
H/W Reset
0110(18-bit/Pixel)
0110(18-bit/Pixel)
Flow Chart
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