Sundance SMT166 - Manual (Page 28)

4.5 SLB IO voltages
Sundance SLB mezzanine modules show different signalling voltages. Control and
data signals can be either 2.5 Volts or 3.3 Volts. So far, Sundance SLB base modules
allow the IO voltage selection.
Virtex6 FPGAs don’t allow 3.3 Volts on the IO pins, only 2.5 Volts.
2.5-V SLB mezzanine modules can be used/plugged directly on the SMT166 carrier
board. When it comes to the 3.3-V SLB mezzanines, an IO converter board has to be
purchased from Sundance. The table below shows the voltages of all SLB mezzanine
modules produced by Sundance:
SLB mezzanine Module IO Voltage required IO converter board
required
SMT350 3.3 Volts Yes
SMT381 2.5 Volts No
SMT384 3.3 Volts Yes
SMT390 3.3 Volts Yes
SMT391 2.5 Volts No
SMT399-190 3.3 Volts Yes
SMT901 3.3 Volts Yes
SMT911 3.3 Volts Yes
SMT903 3.3 Volts Yes
SMT909 2.5 Volts No
SMT916 2.5 Volts No
SMT939 2.5 Volts No
SMT941 2.5 Volts No
SMT942 2.5 Volts No
SMT943 2.5 Volts No
SMT950 3.3 Volts Yes
SMT959 2.5 Volts No
Figure 11 - SLB Selection
Modules highlighted in green above are directly compatible with the SMT166
without any voltage converter board required.
Product Specification SMT166 Page 28 of 44 Last Edited: 17/06/2014 16:12:00