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*** NOP for the sub's hold time
*** Pull SCLK low
** {{Code|byte_in|C}}now contains that recently-received
* Pull {{Overline|CS}} high to unselect the sub
Bit-banging a sub's protocol is similar but different from above. An implementation might involve [[busy waiting]] for {{Overline|CS}} to fall or triggering an [[Interrupt handler|interrupt routine]] when {{Overline|CS}} falls, and then shifting in and out bits when the received SCLK changes appropriately for however long the transfer size is.
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