Primavera Contract Management provides supports both Document Control and Cost Control aspects of a project. There is no automated or built in integration to EBS, but PCM does have web services which can be used to integrate if desired.
I would suggest you look in the knowledgebase and for documentation, you'd find the manuals for PCM included with the software download.
There are integration solution available from Oracle Partners or you can custom code one. What business need you want to address which can not be fulfilled by either system? Have you consider looking at Primavera Unifier instead of PCM?