Here it is the answer I gave to your deleted message (now I think useless):
Not to seem too pedantic, but...
1) Click on the link I gave you
2) Select the model you are interested in (as I previously wrote)
3) Choose the "Support Docs"
4) You will get a list of the relate documents; among them, one is: LPC17xx CMSIS-Compliant Standard Peripheral Firmware Driver Library, V1.0 (Sep 11, 2009)