afs600 Actel Corporation, afs600 Datasheet - Page 154

• Manufacturer Part Number: afs600
• Description: Actel Fusion Programmable System Chips Mixed-signal Family With Optional Arm Support
• Manufacturer: Actel Corporation

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.
standard.
Single-ended I/O standards in Fusion support up to five different drive strengths.
Table 2-80 • Fusion Standard and Advanced I/O Attributes vs. I/O Standard Applications
Table 2-81 • Fusion Pro I/O Attributes vs. I/O Standard Applications
2 -1 4 0
I/O Standards
LVTTL/LVCMOS 3.3 V
LVCMOS 2.5 V
LVCMOS 2.5/5.0 V
LVCMOS 1.8 V
LVCMOS 1.5 V
PCI (3.3 V)
PCI-X (3.3 V)
LVDS, BLVDS, M-LVDS
LVPECL
Note: *This does not apply to the north I/O bank on AFS090 and AFS250 devices.
I/O Standards
LVTTL/LVCMOS 3.3 V
LVCMOS 2.5 V
LVCMOS 2.5/5.0 V
LVCMOS 1.8 V
LVCMOS 1.5 V
PCI (3.3 V)
PCI-X (3.3 V)
GTL+ (3.3 V)
GTL+ (2.5 V)
GTL (3.3 V)
Actel Fusion Programmable System Chips
Table 2-80
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SLEW
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Table 2-81
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OUT_DRIVE
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list the valid I/O attributes that can be manipulated by the user for each I/O
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(all macros
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A d v a n c e d v 1 . 4
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RES_PULL
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OUT_LOAD
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COMBINE_REGISTER
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