P2041 Local bus timing question

取消
显示结果 
显示  仅  | 搜索替代 
您的意思是: 

P2041 Local bus timing question

1,057 次查看
gradymuldrow
Contributor I

I'm designing local bus interface from P2041 processor to some Flash and nVSRAM parts.  In the QorIQ P2040 Reference Manual, Rev 4 section 13.4.2.3.4, it states that the LOE_B asserts and negates on the rising edge of the bus clock, but this conflicts with the waveforms in Figures 13-14, 13-15 where it is shown changing on falling edge of clock.  Which is correct?  Thanks, Grady

标签 (1)
0 项奖励
回复
1 回复

935 次查看
alexander_yakov
NXP Employee
NXP Employee

Reference Manual figures are for illustration purposes only. Please look P2041 Hardware Specifications, Figure 22 for exact reference point from which LOE assertion/negation is measured, and Table 51 for delay values.


Have a great day,
Alexander

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

0 项奖励
回复