xilinx fpga bank

hs high speed

hr high range 3.3v

hd high density

hp high performance chip2chip comm 1.8v

[링크 : http://forums.xilinx.com/t5/Implementation/IO-bank-In-FPGA/td-p/1041175]

[링크 : http://www.edaboard.com/threads/what-is-a-bank-in-fpga.78952/]

 

 

Select IO User's Guide

digitally-controlled impedance  (DCI)

HR banks do not have DCI.

With some exceptions, each I/O bank contains 50 SelectIO pins. 

 

iob input output block

[링크 : http://www.xilinx.com/.../sw_manuals/help/iseguide/mergedProjects/fpga_editor/html/fe_d_iob.htm]