xiaojigao
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I'm using a SPI nor flash recently. I find that there are two read command which can be used to read data from nor flash: READ and FAST READ.
When using READ command, we just need to send: command code -> address -> read data out. But when using FAST READ command, we should send: command code -> address -> 8 dummy cycle -> read data out(at a higher frequency).
My question is that why nor flash can send data out at a higher speed when received FAST READ command ? What's the effect of those 8 dummy cycle?
Thanks very much!
When using READ command, we just need to send: command code -> address -> read data out. But when using FAST READ command, we should send: command code -> address -> 8 dummy cycle -> read data out(at a higher frequency).
My question is that why nor flash can send data out at a higher speed when received FAST READ command ? What's the effect of those 8 dummy cycle?
Thanks very much!