S5L8700 datasheet
The datasheet for the S5L8700X was found here. It matches the official Samsung 8700 info page. The datasheet describes every pin (page 1-5) and instruction (page 3-1) of the 8700 series in detail. The pin locations described in the datasheet are not the actual locations for the iPod's 226-pin FBGA version.
Helpful pages
http://www.samsung.com/global/business/semiconductor/support/PackageInformation/download_FBGA.html
http://www.rockbox.org/twiki/bin/view/Main/SamsungSA58#SA58700_codename_Blues
http://www.meizume.com/rockbox/5797-technical-information-s5l8700x07-sip.html
