has anyone ever daisy chained multiple 4014 registers (PISO) using SPI, i.e. not bit banging?
I kinda have an idea how to use Slave Select lines to select each 4014 chip separately and reading it, then selecting the next 4014, reading it and so on, this way only one byte at a time is read, but could you read all of the chained 4014's at once, with SPI? e.g. six 4014's connected together?