參數(shù)資料
型號： PCF88331
廠商： NXP Semiconductors N.V.
英文描述： STN RGB - 132 X 132 X 3 driver
中文描述： 超扭曲的RGB - 132 × 132 × 3驅(qū)動(dòng)程序
文件頁數(shù)： 62/112頁
文件大?。?/td> 469K
代理商： PCF88331
2003 Feb 14
62
Philips Semiconductors
Objective specification
STN RGB - 132
×
132
×
3 driver
PCF8833
7.1.3
D
ISPLAY DATA FORMATTING
Different display data formats are available because
different colour depths are supported by the PCF8833.
The colour depths supported are as follows:
4 kbyte colours (12-bit/pixel), RGB 4 : 4 : 4 bits input;
see Table 82. The data coming from the interface is
directly stored in RAM.
65 kbyte colours (16-bit/pixel), RGB 5 : 6 : 5 bits input;
see Table 83. The 16-bit data coming from the interface
is mapped by means of dithering to 12-bit data. The
dithered 12-bit data is then stored in the RAM.
256 colours (8-bit/pixel), RGB 3 : 3 : 2 bits input; see
Table 84. The 8-bit data coming from the interface is
mapped by means of the Look-Up Table (LUT) (see
Section 6.2.22) to 12-bit data. The mapped 12-bit data
is then stored in the RAM.
There are 3 bytes used to define 2 pixels with the 12-bit
colour depth information; see Table 82. The most
significant bits are R3, G3 and B3. Data is transferred to
theRAMonlywhenalltheinformationi.e.RGBdataofthat
particular pixel is sent.
There are 2 bytes used to transfer 1 pixel with the 16-bit
colour depth information; see Table 83. The most
significant bits are R4, G5 and B4. When the data transfer
is stopped after the first write, the data is not transferred to
the display data RAM. The 16-bit data coming from the
interface is mapped by means of dithering to 12-bit data.
The dithered 12-bit data is then stored in the RAM.
In one byte, 1 pixel is transferred with the 8-bit colour
depth information; see Table 84. The most significant bits
are R2, G2 and B1. The 8-bit data coming from the
interface is mapped by means of a look-up table (see
Section 6.2.22) to 12-bit data. The mapped 12-bit data is
then stored in the RAM.
Table 82
Write data for RGB 4 : 4 : 4 bits input
Table 83
Write data for RGB 5 : 6 : 5 bits input
Table 84
Write data for RGB 3 : 3 : 2 bits input
7.2
Display data RAM and access arbiter
7.2.1
D
ISPLAY DATA
RAM
The PCF8833 has an integrated 132
×
132
×
12-bit single port static RAM. This 209 kbit memory allows a 132
×
132
(RGB) image with a 12-bpp resolution (4 kbyte colour) to be stored on-chip.
BYTE
D/C
7
6
5
4
3
2
1
0
1st write
2nd write
3rd write
1
1
1
R
3
B
3
G
3
R
2
B
2
G
2
R
1
B
1
G
1
R
0
B
0
G
0
G
3
R
3
B
3
G
2
R
2
B
2
G
1
R
1
B
1
G
0
R
0
B
0
BYTE
D/C
7
6
5
4
3
2
1
0
1st write
2nd write
1
1
R
4
G
2
R
3
G
1
R
2
G
0
R
1
B
4
R
0
B
3
G
5
B
2
G
4
B
1
G
3
B
0
BYTE
D/C
7
6
5
4
3
2
1
0
1st write
1
R
2
R
1
R
0
G
2
G
1
G
0
B
1
B
0
相關(guān)PDF資料
PDF描述
PCF88332DA STN RGB - 132 X 132 X 3 driver
PCF8833U STN RGB - 132 X 132 X 3 driver
PCF8881 132 x 132 RGB single chip TFT driver with DC-to-DC converter
PCI-ADC MULTIFUNKTIONSKARTE 44 KANAL PCI BUS
PCI-DIO KARTE E/A 32 KANAL PCI BUS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCF88332DA 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:STN RGB - 132 X 132 X 3 driver
PCF8833U 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:STN RGB - 132 X 132 X 3 driver
PCF8833U/2DA 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:STN RGB - 132 X 132 X 3 driver
PCF8881 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:132 x 132 RGB single chip TFT driver with DC-to-DC converter
PCF8881U/2DA 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:132 x 132 RGB single chip TFT driver with DC-to-DC converter
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