Different between upgrade guide and PAM

Hi,

I have read upgrade guide for 11g oracle-unix:

at section 2.4 Checking Additional Requirements for the Upgrade

there is a statement like below:

Oracle 11.2 is released and certified for SAP products running with SAP BASIS 640 and above, and

SAP kernel release 640_EX2 and above. To check for your application or product, see the Product

Availability Matrix (PAM) at http://service.sap.com/pam.

but at the PAM I got:

R/3 4.7

basis 6.20

kernel 640_EX2

database oracle 11.2 for AIX 5,3 64bit already supported since 31.03.2010 .

In upgrade - they point out something like below BASIS 640 is not supported for running but in PAM opposite.

have i misunderstood? which one is the correct statement, in the upgrade guide or PAM? please kindly provide assistance and thank you in advance

sincerely,

Henry