Memory Bandwidth - 2.3 English

Video Processing Subsystem Product Guide (PG231)

Document ID
PG231
Release Date
2022-04-27
Version
2.3 English

The Full Fledged configuration has the following memory bandwidth requirements:

The deinterlacer writes 1 field and reads 2 fields. For example, a resolution of 1080i of 8 bit RGB data at 60 Hz:

   write 1 field = 1920 columns * 540 rows * 24 bits * 60 fps = 178MBytes/second

   read 2 fields = 1920 columns * (2*540) rows * 24 bits * 60 fps = 356MBytes/second

The VDMA writes 1 frame and reads 1 frame. For example, a 4K resolution of 8 bit RGB data at 60 Hz:

   write 1 frame = 3840 columns * 2160 rows * 24 bits * 60 fps = 1424MBytes/second

   read 1 frame = 3840 columns * 2160 rows * 24 bits * 60 fps = 1424MBytes/second