Datasheet

ST7735

V1.7 114 2009-12-04

10.1.29 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 m

emory, 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.

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