
SPRS457E
– MARCH 2009 – REVISED JUNE 2011
Table 6-40. Image Sensor Interface (ISIF) Registers (continued)
Offset
Acronym
Register Description
1B4h
CSCM3
Color Space Converter - Coefficients #3
1B8h
CSCM4
Color Space Converter - Coefficients #4
1BCh
CSCM5
Color Space Converter - Coefficients #5
1C0h
CSCM6
Color Space Converter - Coefficients #6
1C4h
CSCM7
Color Space Converter - Coefficients #7
6.12.1.2 The Image Pipe Interface (IPIPEIF)
The IPIPEIF is data and sync signals interface module for ISIF and IPIPE. Data source of this module is
sensor parallel port, ISIF or SDRAM and the selected data is output to ISIF and IPIPE. This module also
outputs black frame subtraction (two-way) data which is generated by subtracting SDRAM data from
sensor parallel port or ISIF data and vice versa. Depending on the functions performed, it may also
readjust the HD, VD, and PCLK timing to the IPIPE and/or ISIF input.
The IPIPEIF module supports the following features:
Up to 16-bit sensor data input
Dark-frame subtract of raw image stored in SDRAM from image coming from sensor parallel port or
ISIF
8-10, 8-12 DPCM decompression of 10-8, 12-8 compressed data in SDRAM
Inverse ALAW decompression of RAW data from SDRAM
(1,2,1) average filtering before horizontal decimation
Horizontal decimation (downsizing) of input lines to
<= 2160 maximum required by the IPIPE
Gain multiply for output data to IPIPE
Simple defect correction to prevent a subtraction of defect pixel
8-bit, 12-bit unpacking of 8-bit, 12-bit packed SDRAM data
The IPIPE register memory mapping (offsets) is shown in
Table 6-41.
Table 6-41. Image Pipe Input Interface (IPIPEIF) Registers
Address
Acronym
Register Description
0h
ENABLE
IPIPE I/F Enable
4h
CFG1
IPIPE I/F Configuration
8h
PPLN
IPIPE I/F Interval of HD / Start pixel in HD
Ch
LPFR
IPIPE I/F Interval of VD / Start line in VD
10h
HNUM
IPIPE I/F Number of valid pixels per line
14h
VNUM
IPIPE I/F Number of valid lines per frame
18h
ADDRU
IPIPE I/F Memory Address (Upper)
1Ch
ADDRL
IPIPE I/F Memory Address (Lower)
20h
ADOFS
IPIPE I/F Address offset of each line
24h
RSZ
IPIPE I/F Horizontal Resizing Parameter
28h
GAIN
IPIPE I/F Gain Parameter
2Ch
DPCM
IPIPE I/F DPCM Configuration
30h
CFG2
IPIPE I/F Configuration 2
34h
INIRSZ
IPIPE I/F Initial position of resize
38h
OCLIP
IPIPE I/F Output clipping value
3Ch
DTUDF
IPIPE I/F Data underflow error status
40h
CLKDIV
IPIPE I/F Clock rate configuration
44h
DPC1
IPIPE I/F Defect pixel correction
48h
DPC2
IPIPE I/F Defect pixel correction
126
Peripheral Information and Electrical Specifications
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2009–2011, Texas Instruments Incorporated