UG-707
ADV8005 Hardware Reference Manual
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_format[
1:0]
Description
01
YCbCr-8b-8b-8b
11
YCbCr-4:2:2-8b
3.3.3.
SVSP Video Output Module
Figure 66: 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:
•
Pixel unpacker: reads field/frame from external memory and unpacks memory word to video pixel information
•
VOM cropper: reads cropped images from external memory
•
Output port: generates output timing and output video
Register update protection is provided in the
. Refer to Section
for more details regarding the update of the various VSP registers.
svsp_lock_vom
, Secondary VSP Map,
Address 0xE610[4]
'This bit is used to lock the Video Output Module (VOM). If the Secondary VSP is running and this bit is set to 1, the VOM will be locked to
the current register setting to display the last frame. The Secondary VSP registers can be configured safely in this state. All new register
settings will be updated after this bit is set back to 0.
Function
svsp_lock_vom
Description
0 (default)
Unlock VOM
1
Lock VOM
Note
: This register should be used only as part of the gentle reboot protocol. Refer to Section
for more details.
svsp_update_vom
, Secondary VSP Map,
Address 0xE610[3]
Registers related to the VOM can be updated only when this bit is set to 0. All new register settings will be updated by VOM in next frame
after this bit is set back to 1.
Function
svsp_update_vom
Description
0 (default)
Do not update VOM
1
Update VOM
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
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