ssd1908 Solomon Systech Limited:, ssd1908 Datasheet - Page 51

• Manufacturer Part Number: ssd1908
• Description: Lcd Drivers,lcd Controllers
• Manufacturer: Solomon Systech Limited:

REG[79h] bits 1-0,
REG[78h] bits 7-0
7.2.7 Floating Window Registers
Reset
Reset
Reset
Type
state
Type
state
Type
state
SSD1908
Bit
Bit
Bit
Main Window Line Address Offset Register 0
Main Window Line Address Offset Register 1
Floating Window Display Start Address Register 0
Offset Bit 7
Address
Address
Floating
Window
window
Display
Main
Start
Bit 7
Line
RW
RW
NA
7
0
7
0
0
7
0
Rev 1.0
Offset Bit 6
Address
Address
Floating
Window
window
Display
Main Window Line Address Offset Bits [9:0]
This register specifies the offset, in double words, from the beginning of one display
line to the beginning of the next display line in the main window. Note that this is a
32-bit address increment.
Calculate the Line Address Offset as follows :
Main Window Line Address Offset bits 9-0
= Display Width in pixels ÷ (32 ÷ bpp)
Note
A virtual display can be created by programming this register with a value greater than
the formula requires. When a virtual display is created the image width is larger than
the display width and the displayed image becomes a window into the larger virtual
image.
Main
Start
Bit 6
Line
RW
RW
NA
6
0
6
0
0
6
0
P 41/41
Offset Bit 5
Address
Address
Floating
Window
window
Display
Oct 2003
Main
Start
Bit 5
Line
RW
RW
NA
5
0
5
0
0
5
0
Offset Bit 4
Address
Address
Floating
Window
window
Display
Main
Start
Bit 4
Line
RW
RW
NA
4
0
0
0
4
0
4
Offset Bit 3
Address
Address
Floating
Window
window
Display
Main
Start
Bit 3
Line
RW
RW
NA
3
0
0
0
3
0
3
Offset Bit 2
Address
Address
Floating
Window
window
Display
Main
Start
Bit 2
Line
RW
RW
NA
2
0
0
0
2
0
2
Offset Bit 1
Offset Bit 9
Solomon Systech
Address
Address
Address
Floating
Window
window
window
Display
Main
Main
Start
Bit 1
Line
Line
RW
RW
RW
0
0
0
1
1
1
REG[78h]
REG[79h]
REG[7Ch]
Offset Bit 0
Offset Bit 8
Address
Address
Floating
Window
Address
window
window
Display
Main
Main
Start
Line
Line
Bit 0
RW
RW
RW
0
0
0
0
0
0