參數(shù)資料
型號: SSD1905QT2
廠商: Electronic Theatre Controls, Inc.
英文描述: LCD Graphics Controller CMOS
中文描述: LCD圖形控制器的CMOS
文件頁數(shù): 41/153頁
文件大?。?/td> 863K
代理商: SSD1905QT2
SOLOMON
Rev 1.3
10/2002
SSD1905
32
Bit 5
Hardware Color Invert Enable
This bit allows the Color Invert feature to be controlled using the General Purpose IO
pin GPIO0. This bit has no effect if REG[70h] bit 7 = 1.
This option is not available if
configured for a HR-TFT as GPIO0 is used as an LCD control signal.
When this bit = 0, GPIO0 has no effect on the display color.
When this bit = 1, display color may be inverted via GPIO0.
Note
Display color is inverted after the Look-Up Table.
The SSD1905 requires some configurations before the hardware color invert feature
enabled.
CF3 must be set to 1 during RESET# is active
GPIO Pin Input Enable (REG[A9h] bit 7) must be set to 1
GPIO0 Pin IO Configuration (REG[A8h] bit 0) must be set to 0
If Hardware Color Invert is not available (i.e. HR-TFT panel is used), the color invert
function can be controlled by software using REG[70h] bit 4. Table 7-7 :
Color Invert
Mode Options
summarizes the color invert options available.
Software Color Invert
When this bit = 0, display color is normal.
When this bit = 1, display color is inverted.
See Table 7-7 : Color Invert Mode Options. This bit has no effect if REG[70h] bit 7 = 1
or REG[70h] bit 5 = 1.
Note
Display color is inverted after the Look-Up Table.
Bit 4
Table 7-7 :
Color Invert Mode Options
Hardware Color Invert Enable
0
0
1
1
x = don’t care
Bits 2-0
Software Color Invert
0
1
X
X
GPIO0
X
X
0
1
Display Color
Normal
Invert
Normal
Invert
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.
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