ADV8003 Hardware Manual
Rev. B, August 2013
194
svsp_vim_scal_pano_pos[10:0]
, Secondary VSP Map,
Address 0xE651[7:0]; Address 0xE652[7:5]
This signal is used to define the width of the output video frame which is not stretched when panorama mode is enabled but rather
scaled properly. The maximum value of this register is set by: svsp_vim_crop_width *
(svsp_vim_scal_out_height/svsp_vim_crop_height) - svsp_vim_scal_out_width/2.
This register sets half the width of the output frame which is to be scaled normally. By default, this register is set to 0 which means that
all the input frame will be stretched. It is, therefore, recommended that this register is set by the user before enabling the panorama
function.
Function
svsp_vim_scal_pano_p
os[10:0]
Description
0x000
Default
0xXXX
Width of not-stretched image
3.3.2.6.
Pixel Packer
At the back end of the VIM, the pixel packer converts input video to word packets suitable for writing to external memory. The operation
of this hardware block is similar to the pixel packer in the PVSP. The SVSP manages pixels in 8-bit precision. Pixels in external memory
have two different data formats which can be selected using
•
24-bit YCbCr
•
16-bit YCbCr-4:2:2
svsp_ex_mem_data_format[1:0]
, Secondary VSP Map,
Address 0xE611[7:6]
This signal is used to set the data format in external memory.
Function
svsp_ex_mem_data_for
mat[1:0]
Description
01
YCbCr-8b-8b-8b
11
YCbCr-4:2:2-8b
3.3.3.
SVSP Video Output Module
VOM
Cropper
Video Output Module (VOM)
Output
Video
Write to
DDR2
FFS
Output
Port
Pixel
Unpacker
VOM
Cropper
Video Output Module (VOM)
Output
Video
Write to
DDR2
FFS
Output
Port
Pixel
Unpacker
Figure 64: SVSP Video Output Module (VOM)
shows the structure of the VOM in the SVSP. This is a much simpler structure than that of the VOM in the PVSP.
The SVSP VOM offers the following functions:
Summary of Contents for ADV8003
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