DCLK-to-DATA Ratio (r) for FPP Configuration
Fast passive parallel (FPP) configuration requires a different DCLK-to-DATA ratio when you turn on encryption or the compression feature.
Depending on the DCLK-to-DATA ratio, the host must send a DCLK frequency that is r times the DATA rate in byte per second (Bps) or word per second (Wps). For example, in FPP ×16 where the r is 2, the DCLK frequency must be 2 times the DATA rate in Wps.
|Configuration Scheme||Encryption||Compression||DCLK-to-DATA Ratio (r)|
|FPP (8-bit wide)||Off||Off||1|
|FPP (16-bit wide)||Off||Off||1|
|FPP (32-bit wide)||Off||Off||1|
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