Data Sheet

a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9341
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Page 98 of 233
8.2.9. Read Display Signal Mode (0Eh)
0Eh RDDSM (Read Display Signal Mode)
D/CX RDX WRX D17-8 D7 D6 D5 D4 D3 D2 D1 D0 HEX
Command 0 1 ↑ XX 0 0 0 0 1 1 1 0 0Eh
1
st
Parameter 1 ↑ 1 XX X X X X X X X X X
2
nd
Parameter 1 ↑ 1 XX D7 D6 D5 D4 D3 D2 D1 D0 00
Description
This command indicates the current status of the display as described in the table below:
Bit Value Description
0 Tearing effect line OFF
D7
1 Tearing effect line ON
0 Tearing effect line mode 1
D6
1 Tearing effect line mode 2
0 Horizontal sync. (RGB interface) OFF
D5
1 Horizontal sync. (RGB interface) ON
0 Vertical sync. (RGB interface) OFF
D4
1 Vertical sync. (RGB interface) ON
0 Pixel clock (DOTCLK, RGB interface) OFF
D3
1 Pixel clock (DOTCLK, RGB interface) ON
0 Data enable (DE, RGB interface) OFF
D2
1 Data enable (DE, RGB interface) ON
D1 0 Reserved
D0 0 Reserved
X = Don’t care
Restriction
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 Yes
Partial Mode On, Idle Mode On, Sleep Out Yes
Sleep In Yes
Default
Status Default Value
Power On Sequence 8’h00h
SW Reset 8’h00h
HW Reset 8’h00h
Flow Chart
Command
Parameter
Action
Mode
Legend
Sequential transfer
RDDSM(0Eh)
1st Parameter: Dummy Read
2nd Parameter: Send D[7:0] display signal mode status
Host
Driver
Display