M1AFS600-PQ208 Datasheet, PDF (175/334 Pages) Microsemi Corporation – Fusion Family of Mixed Signal FPGAs

Fusion Family of Mixed Signal FPGAs
I/O Software Support
In the Fusion development software, default settings have been defined for the various I/O standards
supported. Changes can be made to the default settings via the use of attributes; however, not all I/O
attributes are applicable for all I/O standards. Table 2-84 and Table 2-85 list the valid I/O attributes that
can be manipulated by the user for each I/O standard.
Single-ended I/O standards in Fusion support up to five different drive strengths.
Table 2-84 • Fusion Standard and Advanced I/O Attributes vs. I/O Standard Applications
I/O Standards
SLEW
SKEW
(output OUT_DRIVE (all macros
OUT_LOAD
only) (output only) with OE)* RES_PULL (output only) COMBINE_REGISTER
LVTTL/LVCMOS 3.3 V
3
3
3
3
3
3
LVCMOS 2.5 V
3
3
3
3
3
3
LVCMOS 2.5/5.0 V
3
3
3
3
3
3
LVCMOS 1.8 V
3
3
3
3
3
3
LVCMOS 1.5 V
3
3
3
3
3
3
PCI (3.3 V)
3
3
3
PCI-X (3.3 V)
3
3
3
3
LVDS, BLVDS, M-LVDS
3
3
LVPECL
3
Note: *This feature does not apply to the standard I/O banks, which are the north I/O banks of AFS090 and AFS250
devices
Revision 4
2- 159