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about 64bit pci signals



Hello everyone,

I want to use 64 bit PCI bridge chip (21554) in 32 bit environment. That
is the following signals are never used.

ack64#
gnt64#
cbe[4:7]#
ad[32:63]
par64

Who can tell me how to deal with these signals? Let them float, connect
to Vdd or Vss?

thanks, Any advice is welcome.
--
*************
 Sun Zhi-gang
 Section 612, Dept. of Computer Science,
 National Univercity of Defence Technology ,
 Changsha, Hunan Province, 410073, P.R. China,
 Tel: (86-731)4506612(O)
 Fax: (86-731)4556650(O)
 Email: zgsun@nudt.edu.cn
*************