user manual

Mint v4 PC Programming Guide
66
MN1278 05.2001
6.10 Data Synchronization
It may be desirable to prevent NextMove PC and PCI from updating the DPR update area for a period to allow a
‘snap-shot’ of DPR to be taken. The status and control registers provide a mechanism for this. It is supported by
the function lockDPR. This function can be used to
•
request that DPR not be updated by Mint
•
inform Mint that it can now update MML.
Note that locking DPR can take up to two milliseconds to complete.
Note:
lockDPR
can also be used to speed up code running on NextMove, as NextMove will not have to
update the MML area of DPR.