Use of Ss_ctl in imx6 Ecspi Config Register

1. Adopt slave mode

2, SS_CTL configuration is 0

The configuration instructions for this bit in imx6 are as follows:

which

In slave Mode-an SPI burst was completed when the number of bits received in the shift register is
Equal to (BURST LENGTH + 1). Only the n least-significant bits (n = BURST length[4:0] + 1) of the
First received word is valid. All bits subsequent through received word in Rxfifo is valid.

Follow the following two sentences:

If BPW is set to 8 then the first word received is 0x00000008, and all subsequent data must be filled with one word.

If the data sent is 0x01 0x02 0x03 0x04 0x05

Just received rxfifo in the two words of 0x00000001 0x02030405

Use of Ss_ctl in imx6 Ecspi Config Register