Re: What does the "K85H" mean?

"David A. Perreault" <[email protected]> Wed, 14 Dec 2005 08:00:04 -0500
Newsgroups	gmane.comp.hardware.motorola.microcontrollers
Message-ID	<[email protected]>
A mask is a device which is used to create the semiconductor chip. When 
you do a layout change, you create a new mask. The number of the mask 
that is used to create the part is stamped on the top of the part. Hence 
you can track changes to the chip by the mask number. In addition, 
errata for a part are usually tracked by mask number. Revision numbers 
are different things. They ususally represent a change in the design 
specification. This of course would also force a mask change.

Dave


illtll801021 wrote:

>Hi everyone!
>   I'm a fresh on MPC5xx's family.Now I am studying MPC566 with Axiom's 
>MPC566EVB.
>   When I read the MPC566RM about BDM/JTAG,I could not understand 
>the "on mask set K85H".What does the "K85H" mean?
>   Thanks anybody's help!
>
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