ssd1908 Solomon Systech Limited:, ssd1908 Datasheet - Page 48

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

x = don’t care
Bits 2-0
Bit 7
Bit 6
Reset
Type
state
Solomon Systech
Bit
Bit-per-pixel
Select Bits [2:0]
000
001
010
011
100
101, 110, 111
Special Effects Register
Word Swap
Display
Data
RW
7
0
Byte Swap
Display
0
1
1
Bit-per-pixel Select Bits [2:0]
These bits select the color depth (bit-per-pixel) for the displayed data for both the main
window and the floating window (if active).
Note
1, 2, 4 and 8 bpp modes use the 18-bit LUT, allowing maximum 256K colors. 16 bpp
mode bypasses the LUT, allowing 64K colors.
Display Data Word Swap
The display pipe fetches 32-bit of data from the display buffer. This bit enables the
lower 16-bit word and the upper 16-bit word to be swapped before sending them to the
LCD display. If the Display Data Byte Swap bit is also enabled, then the byte order of
the fetched 32-bit data is reversed.
Display Data Byte Swap
The display pipe fetches 32-bit of data from the display buffer. This bit enables
swapping of byte 0 and byte 1, byte 2 and byte 3, before sending them to the LCD. If
the Display Data Word Swap bit is also set, then the byte order of the fetched 32-bit
data is reversed.
Note
For further information on byte swapping for Big Endian mode, see Section 17 “Big-Endian
Bus Interface”.
Data
RW
Color Depth
(bpp)
1 bpp
2 bpp
4 bpp
8 bpp
16 bpp
Reserved
6
0
Table 7-9 :
NA
5
0
0
Maximum Number of Colors/Shades
Passive Panel
(Dithering On)
REG[45h]
bit 0 = 0
32K/32
32K/32
32K/32
32K/32
32K/32
n/a
LCD Bit-per-pixel Selection
Floating
Window
Enable
RW
0
X
X
4
1
n/a
REG[45h]
bit 0 = 1
256K/64
256K/64
256K/64
256K/64
64K/64
Oct 2003
NA
0
0
3
P 38/38
TFT Panel
256K/64
256K/64
256K/64
256K/64
64K/64
n/a
X
0
1
NA
0
0
2
Rev 1.0
Max. No. Of
Simultaneously
Displayed
Colors/Shades
2/2
4/4
16/16
256/64
64K/64
n/a
Normal
Display
Rotate
Select
Invert
Invert
Mode
Bit 1
RW
0
1
SSD1908
REG[71h]
Display
Rotate
Select
Mode
Bit 0
RW
0
0