Preliminary
CAMERA INTERFACE
S3C2451X RISC MICROPROCESSOR
23-46
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
- MSDMA Start address
Start address of ADDRStart_Y/Cb/Cr points the first word address where the corresponding component of
Y/Cb/Cr is read. Each one should be aligned with word boundary (i.e. ADDRStart_X[1:0] = 00). ADDRStart_Cb
and ADDRStart_Cr are valid only for the YCbCr420 source image format.
- MSDMA End address
1) ADDREnd_Y
= ADDRS Memory size for the component of Y
= ADDRS (SRC_Width × SRC_Height) × ByteSize_Per Offset_Y × (SRC_Height-1)
2) ADDREnd_Cb (Valid for YCbCr420 source format)
= ADDRSt Memory size for the component of Cb
= ADDRSt (SRC_Width/2 × SRC_Height/2) × ByteSize_Per Offset_Cb × (SRC_Height/2-1)
3) ADDREnd_ Cr (Valid for YCbCr420 source format)
= ADDRStart_ Cr + Memory size for the component of Cr
= ADDRSt (SRC_Width/2 × SRC_Height/2) × ByteSize_Per Offset_Cr × (SRC_Height/2-1)
- MSDMA OFFSET
1) Offset_Y/Cb/Cr
= Memory size for offset per a horizontal line
= Number of pixel (or sample) in horizontal offset × ByteSize_Per_Pixel (or Sample)
Cf.) ByteSize_Per_Pixel = 1 for YCbCr420
2 for YCbCr422 (interleave)