- Linux MultiMedia Studio Computer Accessories 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.