LS1028 SPI 3-wire configuration and GPIO usage for CS

[AntoNico10]

Hello,

I am design a custom board with the LS1028 processor, and I have a couple of questions regarding SPI configuration:

1. Is it possible to configure SPI in 3-wire mode, or do I need to physically connect MISO and MOSI to achieve this setup?
2. Is it feasible to use other GPIO pins as Chip Select (CS) lines? For example, on SPI 3, I am already using CS1 and CS2 for USB power management, so I would like to assign another GPIO as a CS pin ( I need 2 CS pin ).

Thank you for any guidance you can provide.

[LFGP]

dear AntoNico10,
yes it is posible to configure SPI with 3-wire and it's necessary to connect MISO and MOSI.
You can uso a GPIO pins as ChipSelect but keep in mind that you have to program the functionality as CS to them.