camisp-204
First transmitted bit
Time
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
Every code is transmitted bytewise, LSB first.
Example: code 0xFF00:0002
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Camera ISP Environment
Table 6-8. Camera ISP CSI1/CCP2B Image Data Operating Modes and Alignment Constraints
(continued)
CCP2B Data
OCP Bits per
Width
Storage
2D Mode
Comments
[7:3]
Format
Pixel (bpp)
Constraint:
Increase Versus
Availability
(1)
Format
(when sending
Must Be a
Packed
data to memory,
Multiple of n
N/A when
Pixels
sending to VP)
0x17
RAW10 -> RAW7
8
16
20%
No
DPCM
DPCM + EXP8
compression
CCP2 only
0x18
RAW12
12
32
N/A
No
0x19
RAW12 + EXP16
16
8
33%
No
0x1A
RAW12 + VP
N/A, data are
8
N/A
N/A
sent to VP
0x1B
RAW10 -> RAW8
8
16
20%
No
DPCM
DPCM
decompression
CCP2 only
0x1C
JPEG, 8-bit data
N/A
N/A
N/A
No
0x1D
JPEG, 8-bit data
N/A
N/A
N/A
No
+ FSP
0x1E
RAW10 -> RAW8
8
16
20%
No
Data right shift
NOTE:
•
EXP8 = Data expansion to 8 bits, padding with zeros
•
EXP16 = Data expansion to 16 bits, padding with alpha or zeros
[15:8] ALPHA can be used to set an alpha value.
For EXP16:
–
data_out[31:28] = ALPHA[3:0] and data_out[27:16] = RGB444
–
data_out[15:12] = ALPHA[3:0] and data_out[11:0] = RGB444
•
EXP32 = Data expansion to 32 bits, padding with alpha
[15:8] ALPHA can be used to set an alpha value.
For EXP32: data_out[31:24] = ALPHA[7:0] and data_out[23:0] = RGB888
•
FSP = False synchronization code protection decoding. Applies only to JPEG8 data
format.
•
VP = Output to the video processing hardware is enabled. The programmer must ensure
that only one logical channel is enabled to the Video processing hardware. The behavior
of the video processing hardware is unpredictable if several logical channels to it are
enabled simultaneously.
The preamble 0xFF0000 is fixed by construction and must not be modified. However, the CSI1/CCP2B
receiver programming model allows the synchronization code identifier to be overwritten: bits 0 to 3.
Every code is transmitted bytewise, least-significant bit (LSB) first. For example, the code 0xFF00:0002
transmitted from the image sensor corresponds to the following bitstream: 11111111 - 00000000 -
00000000 - 01000000. Every default code starts with a set of eight 1s and sixteen 0s that are never
received in pixel data. This means that content having eight 1s and sixteen 0s is not allowed.
shows an example of 0xFF00 0002 transmission.
Figure 6-7. Camera ISP Example of 0xFF00 0002 Transmission
1101
SWPU177N – December 2009 – Revised November 2010
Camera Image Signal Processor
Copyright © 2009–2010, Texas Instruments Incorporated
Содержание OMAP36 Series
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Страница 692: ...692 MPU Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1084: ...1084 IVA2 2 Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1990: ...1990 2D 3D Graphics Accelerator SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2334: ...2334 Memory Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2700: ...2700 Memory Management Units SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2868: ...2868 HDQ 1 Wire SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2974: ...2974 UART IrDA CIR SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3054: ...3054 Multichannel SPI SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3462: ...3462 MMC SD SDIO Card Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3508: ...3508 General Purpose Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3584: ...3584 Initialization SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3648: ...3648 Debug and Emulation SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...