MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 2123

• 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

The cropping extents should fall completely within the S0 buffer to avoid displaying incorrect
data. The PXP hardware does not check for these conditions and will render the image as
shown in the following two diagrams. (Note that the cropping width and height can be
viewed as applying to the input buffer only because it is not scaled. In actuality, it is applied
to the output buffer).
Freescale Semiconductor, Inc.
Figure 34-5. Pixel Pipeline (PXP) Scaling and Cropping Example
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
CROP register should
crop xbase
Figure 34-6. Invalid PXP Cropping Examples
When upscaling, the
be used to properly
mask the resulting
scaled image.
Source Image
crop xbase
crop ybase
data aliases to here
320
S0 width
S0 width
crop width
crop ybase
crop height
crop height
crop width
S0 Buffer
S0 Buffer
Resulting image when upscaling if the CROP register is not used
(CTRL_CROP=1, CROP_XBASE=0, CROP_YBASE=0
Resulting image when CROP register is programmed
(default cropping is based on input image size)
320
buffer will be fetched when rendering the
If the clipping extents fall outside the S0
buffer (vertically), data beyond the S0
s0 xbase
read will effectively “wrap” to the next lines
CROP_HEIGHT=RGB Height)
If the clipping area extends outside the S0
buffer in the horizontal direction , the data
CROP_WIDTH=RGB Width
to the RGB Buffer size
s0 xbase
s0 ybase
S0 plane.
640
in the S0 buffer.
RGB width
s0 ybase
crop height
rendered image
RGB Buffer
Boundary of
RGB width
RGB Buffer
crop width
crop width
crop height
Chapter 34 Pixel Pipeline (PXP)
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