Scrolling text on LED matrices using SPI and arduino Mega2560

SCK, MOSI in parallel to all chips.
Seperate SS/Load to each chip.
It's just a chip and it can be wired any way the design calls for.
I went with 4 seperate load lines because I felt it made the coding easier for me.
In a situation with a more static display, having the data line daisychained might make more sense.