In an SPI interface i have got 4 slaves and one master What i wanted to know is wether the master can assert two slave selects(SS_N) simultaneously OR is there a restriction that master can assert only one slave select.
snipped-for-privacy@gmail.com wrote in news:1117455841.370215.303660 @f14g2000cwb.googlegroups.com:
The SPI can certainly assert multiple slave selects. The restriction is on the slaves. No more than one slave can drive the MISO line at the same time.
There are many SPI slave devices that are write only (No MISO connection).
Example:
Configuring multiple data converters with the same instructions. You might reset the parts with the same instruction and address the parts independently for gain settings.
--
Al Clark
Danville Signal Processing, Inc.
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