Data Sheet

a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9341
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Page 107 of 233
8.2.17. Gamma Set (26h)
26h GAMSET (Gamma Set)
D/CX RDX WRX D17-8 D7 D6 D5 D4 D3 D2 D1 D0 HEX
Command 0 1 ↑ XX 0 0 1 0 0 1 1 0 26h
Parameter 1 1 ↑ XX GC [7:0] 01
Description
This command is used to select the desired Gamma curve for the current display. A maximum of 4 fixed gamma curves can
be selected. The curve is selected by setting the appropriate bit in the parameter as described in the Table:
GC [7:0] Curve Selected
01h Gamma curve 1 (G2.2)
02h ---
04h ---
08h ---
Note: All other values are undefined.
X = Don’t care
Restriction
Values of GC [7:0] not shown in table above are invalid and will not change the current selected Gamma curve until valid
value is received.
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’h01h
SW Reset 8’h01h
HW Reset 8’h01h
Flow Chart
GAMSET (26h)
1st Parameter: GC[7:0]
New Gamma Curve
Loaded
Command
Parameter
Action
Mode
Legend
Sequential transfer
Display