AnsweredAssumed Answered

MPC5554 EBI timing with differernt Ext Bus Frequency

Question asked by WILLIAM WEISHAUPT on Nov 15, 2017
Latest reply on Nov 20, 2017 by David Tosenovjan

OnTable 22 Sheet 33 of the MPC data sheet Rev 4 three external bus frequencies are shown.

1) Do the 3 frequencies correspond to the 3 different speed grades the MPC5554 is available in? For example if I have a 132 MHz part (MPC5554MZP132) and have the external bus frequency running at 33 MHz would I use the delays in the 66 MHz column not the delays in the 40 MHz column?

2) The delay values given in the table are with DSC = 0b10 do you have maximum delay values when DSC = 0b11?

Outcomes