The 6522 is at some base address in memory, say $C800,
and occupies 16
sequential addresses. That part I'm pretty sure you already know. Here's
a
link to some .tif scans from Rockwell. I couldn't
find anything better in
my few minutes of searching.
http://bbc.nvg.org/doc/datasheets/R6522_r9.zip
There are scanned datasheets for most all the 6522 versions at
http://www.6502.org/datasheets/datasheets.htm