MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 2125

• Manufacturer Part Number: MCIMX286CVM4B
• Description: IC MPU I.MX286 289MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX28r

Specifications of MCIMX286CVM4B

• Core Processor: ARM9
• Core Size: 32-Bit
• Speed: 454MHz
• Connectivity: CAN, EBI/EMI, Ethernet, I²C, MMC, SmartCard, SPI, SSI, UART/USART, USB OTG
• Peripherals: DMA, I²S, LCD, POR, PWM, WDT
• Program Memory Size: 128KB (32K x 32)
• Program Memory Type: Mask ROM
• Ram Size: 32K x 32
• Voltage - Supply (vcc/vdd): 1.25 V ~ 5.25 V
• Data Converters: A/D 17x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 289-LFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant

34.2.4 Color Space Conversion (CSC)
The CSC module receives scaled YUV/YCbCr444 pixels from the scale engine and converts
the pixels to the RGB888 color space. These pixels are loaded into the pixel FIFO for
processing by the alpha blend module. The CSC module can also be bypassed to allow pixel
output formats in the YUV/YCbCr color space.
The following equations are used to perform YUV/YCbCr -> RGB conversion. The constants
will be stored in the PXP control registers as two's compliment values to allow flexibility
in the implementation and to allow for differences in the video encode and decode operations.
In addition, this provides a software mechanism to manipulate brightness or contrast.
Saturation of each color channel is checked and corrected for excursions outside the nominal
YUV/YCbCr color spaces. Overflow for the three channels are saturated at 0x255 and
underflow is saturated at 0x00.
The following table indicates the expected coefficients for YUV and YCbCr modes of
operation:
Freescale Semiconductor, Inc.
R = C0(Y+Yoffset) + C1(V+UVoffset)
G = C0(Y+Yoffset) + C3(U+UVoffset) + C2(V+UVoffset)
B = C0(Y+Yoffset) + C4(U+UVoffset)
In the equations above, U and V are synonymous with Cb and Cr
in regards to the color space format of the source frame buffer.
Coefficient
UVoffset
Yoffset
C0
C1
C2
C3
C4
Table 34-1. Coefficients for YUV and YCbCr Operation
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
Note
0x76B (-0.581)
0x79B (-0.394)
0x123 (1.140)
0x208 (2.032)
0x100 (1.00)
0x000
0x000
YUV
Chapter 34 Pixel Pipeline (PXP)
0x79C (-0.392)
0x730 (-0.813)
0x12A (1.164)
0x198 (1.596)
0x204 (2.017)
0x180 (-128)
0x1F0 (-16)
YCbCr
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