pub const FRAME_STRIDE_LOG2: usize = 11;Expand description
log2 of the frame stride in bytes (2 KiB).
Frame f starts at base + (f << 11). A power-of-two stride turns the
address multiply into a free wire shift, and 2 KiB divides 4 KiB, so a
1,664-byte frame never crosses a 4 KiB AXI page.