Data Sheet

a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9341
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Page 177 of 233
8.3.15. Backlight Control 8 (BFh)
BFh Backlight Control 2
D/CX RDX WRX D17-8 D7 D6 D5 D4 D3 D2 D1 D0 HEX
Command 0 1 ↑ XX 1 0 1 1 1 1 1 1 BFh
Parameter 1 1 ↑ XX 0 0 0 0 0 LEDONR LEDONPOL LEDPWMPOL 00
Description
LEDPWMPOL: The bit is used to define polarity of LEDPWM signal.
BL LEDPWMPOL LEDPWM pin
0 0 0
0 1 1
1 0 Original polarity of PWM signal
1 1 Inversed polarity of PWM signal
LEDONPOL: This bit is used to control LEDON pin.
BL LEDONPOL LEDON pin
0 0 0
0 1 1
1 0 LEDONR
1 1 Inversed LEDONR
LEDONR: This bit is used to control LEDON pin.
LEDONR Description
0 Low
1 High
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
Default Value
Status
LEDONR LEDONPOL LEDPWMPOL
Power On Sequence 1’b0 1’b0 1’b0
SW Reset No change No change No change
HW Reset 1’b0 1’b0 1’b0