Data Sheet

a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9341
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Page 129 of 233
8.2.30. Vertical Scrolling Start Address (37h)
37h VSCRSADD (Vertical Scrolling Start Address)
D/CX RDX WRX D17-8 D7 D6 D5 D4 D3 D2 D1 D0 HEX
Command 0 1 ↑ XX 0 0 1 1 0 1 1 1 37h
1
st
Parameter 1 ↑ 1 XX VSP [15:8] 00
2
nd
Parameter 1 ↑ 1 XX VSP [7:0] 00
Description
This command is used together with Vertical Scrolling Definition (33h). These two commands describe the scrolling area
and the scrolling mode. The Vertical Scrolling Start Address command has one parameter which describes the address of
the line in the Frame Memory that will be written as the first line after the last line of the Top Fixed Area
on the display as illustrated below:-
When MADCTL B4=0
Example:
When Top Fixed Area = Bottom Fixed Area = 00, Vertical Scrolling Area = 320 and VSP=’3’.
Frame Memory
(0, 0)
Line Pointer
VSP[15:0]
(0, 319)
0
Pointer
B4=0
1
2
3
4
..
..
317
318
319
Display
When MADCTL B4=1
Example:
When Top Fixed Area = Bottom Fixed Area = 00, Vertical Scrolling Area = 320 and VSP=’3’.
Frame Memory
(0, 319)
Line Pointer
VSP[15:0]
(0, 0)
0
Pointer
B4=1
1
2
3
4
..
..
317
318
319
Display
Note: (1) When new Pointer position and Picture Data are sent, the result on the display will happen at the next Panel Scan
to avoid tearing effect. VSP refers to the Frame Memory line Pointer.
(2) This command is ignored when the ILI9341 enters Partial mode.
X = Don’t care