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TMS570LS3137: about tC2TDELAY time

Part Number: TMS570LS3137

Hi all,

My customers are using MIBSPI with the following settings.

  • fVCLK = 90MHz
  • tcVCLK = 11.1ns
  • CLOCK PHASE=0
  • CLOCK POLARITY=0
  • C2TDELAY=0
  • T2CDELAY = 0
  • CSHOLD = 0

When MIBSPI is executed with this setting, the following waveform is obtained.

"tC2TDELAY" of this waveform becomes 120 ns and "tSPIENA" becomes 86 ns, which is outside the data sheet range.

Why is it a value outside the scope of the data sheet?

Best regards,

Sasaki