Motorola MVME5100 用户手册

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Product Data and Memory Maps

Because IDREQ_ and MID3-MID0 signals go through the 
P2MX (P2 multiplexing) function used on MVME5100 
series boards configured for the MVME761-type transition 
module, software must wait for the MID3-MID0 to become 
valid after asserting IDREQ_. The waiting time should be 
about 4 microseconds because the sampling rate is about 1.6 
microsecond with a 10MHz MXCLK clock.

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Module 3: EIA530 DTE

01-W3879B01

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Module 4 Not Installed