MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 2163
MCIMX281AVM4B
Manufacturer Part Number
MCIMX281AVM4B
Description
IC MPU I.MX28 1.2 289MAPBGA
Manufacturer
Freescale Semiconductor
Series
i.MX28r
Datasheets
1.MCIMX283DVM4B.pdf
(2327 pages)
2.MCIMX283DVM4B.pdf
(20 pages)
3.MCIMX281AVM4B.pdf
(72 pages)
Specifications of MCIMX281AVM4B
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
Supplier Unconfirmed
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Address:
34.4.15 Color Space Conversion Coefficient Register 1
This register contains color space conversion coefficients in two's compliment notation.
The Coeffient 1 register contains coeffients used in the color space conversion algorithm.
C1 is the coeffient that is used to multiply the chroma (Cr/V) component of the data for the
red component. C4 is the coeffient that is used to multiply the chroma (Cb/U) component
of the data for the blue component. Both values should be coded as a two's compliment
fixed point number with 8 bits right of the decimal.
EXAMPLE
Freescale Semiconductor, Inc.
Reset
Reset
YCBCR_MODE
UV_OFFSET
Y_OFFSET
HW_PXP_CSCCOEFF0_WR(0x04030000); // YUV coefficients: C0, Yoffset, UVoffset
HW_PXP_CSCCOEFF1_WR(0x01230208); // YUV coefficients: C1, C4
Bit
Bit
W
W
R
R
RSVD1
30 29
28 18
Field
17 9
8 0
C0
31
31
15
0
0
HW_PXP_CSCCOEFF0
(HW_PXP_CSCCOEFF1)
30
14
0
0
RSVD1
Set to 1 when performing YCbCr conversion to RGB. Set to 0 when converting YUV to RGB data. This bit
changes the behavior of the scaler when performing U/V scaling.
Reserved, always set to zero.
Two's compliment Y multiplier coefficient. YUV=0x100 (1.000) YCbCr=0x12A (1.164)
Two's compliment phase offset implicit for CbCr data. Generally used for YCbCr to RGB conversion.
YCbCr=0x180, YUV=0x000 (typically -128 or 0x180 to indicate normalized -0.5 to 0.5 range)
Two's compliment amplitude offset implicit in the Y data. For YUV, this is typically 0 and for YCbCr, this is
typically -16 (0x1F0)
UV_OFFSET[15:9]
29
13
0
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
28
12
0
0
HW_PXP_CSCCOEFF0 field descriptions
27
11
0
0
8002_A000h base + D0h offset = 8002_A0D0h
26
10
1
0
25
0
0
9
24
0
0
8
Description
C0
23
0
0
7
22
0
0
6
21
0
5
0
Y_OFFSET
20
0
4
0
Chapter 34 Pixel Pipeline (PXP)
19
0
0
3
18
0
0
2
UV_OFFSET
17
0
0
1
[17:16]
2163
16
0
0
0
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