spi in t2080

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spi in t2080

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monalihaware
Contributor III

This is regarding RxSKIP bit in ESPI_SPCOM of spi of T2080.
It says-
If (RXSKIP ≠ 0)-Number of characters skipped for reception from frame start.
Non-zero values of RxSKIP force the eSPI to half-duplex mode, and therefore this causes TRANLENRxSKIP characters to be skipped for transmission.
RXSKIP is useful for reads of SPI flash memories where the first valid read data is received several
characters after the transmission begins (after the eSPI has transmitted an instruction opcode and
address).
-----My query is does these bit talk about reception or transmission? I understand the above statement during reception that no. of chars to be skipped after reception starts. BUt how does it speak about transmission ? in the following statement , what does it mean-

Non-zero values of RxSKIP force the eSPI to half-duplex mode, and therefore this causes TRANLEN-RxSKIP characters to be skipped for transmission.

 

Can anyone give an example?

Thanks in advance

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