Frame Buffer Number; Frame Buffer Address And Size - Analog Devices ADV8003 Hardware Manual

Function
svsp_vin_h[10:0]
0x000 
0xXXX
svsp_vin_v[10:0], Secondary VSP Map, Address 0xE618[7:0]; Address 0xE619[7:5]
This signal is used to set the vertical resolution of the input video. This register's value will be used while svsp_man_input_res is 1 or
svsp_autocfg_input_vid is 1.
Function
svsp_vin_v[10:0]
0x000 
0xXXX
Similarly, if the output timing is not in the SVSP output format table, the output format needs to be set manually. The detailed
configuration instruction is given in the SVSP VOM output port description.

3.3.1.3. Frame Buffer Number

Depending on the type of conversion that is to take place, a certain number of buffers must be allocated for the input/output video data.
Depending on the conversion required, this should be set in the
automatically set per svsp_autocfg_input_vid[7:0]
change when crop or album mode is enabled.
svsp_fieldbuf_num[2:0], Secondary VSP Map, Address 0xE610[2:0]
This signal is used to set the number of field/frame buffers. This signal needs to be configured while svsp_osd_mode_en is 1.
Function
svsp_fieldbuf_num[2:0]
000 
XXX

3.3.1.4. Frame Buffer Address and Size

In order to store video data in external memory in the correct size frames, the buffer size of the external DDR2 memory must be
programmed by the user. These programmed field buffers or frame buffers are allocated by setting the svsp_fieldbuffer0_addr[31:0],
svsp_fieldbuffer1_addr[31:0],
The value programmed into each of these registers is determined in
frame
For example, for an output video resolution of 720p,
Field_size = ((1280)x(720))x2 = 1843200
where no_bytes_per_pixel indicates the number of bytes required to store each pixel. Refer to
bytes required to store each pixel of data.
Rev. B, August 2013
Description
Default
Horizontal resolution of input video
Description
Default
Vertical resolution of input video
Description
Default
Number of field/frame buffers
svsp_fieldbuffer2_addr[31:0]
=
_ size active _ video _
Equation 19: Calculating External Memory Field Buffers
Equation 19
svsp_fieldbuf_num[2:0]
and svsp_autocfg_output_vid[7:0]. The
and svsp_fieldbuffer3_addr[31:0]
Equation 19.
×
width active _ video
would yield the following field size:
185
register. svsp_fieldbuf_num[2:0]
svsp_fieldbuf_num[2:0]
registers.
×
_ height no _ bytes _
Table 26 for more details of the number of
ADV8003 Hardware Manual
can be
register will not
per _ pixel