Xilinx SelectIO 7 Series User Manual

7 Series FPGAs SelectIO Resources User Guide www.xilinx.com 53
UG471 (v1.10) May 8, 2018
Supported I/O Standards and Terminations
Figure 1-38 shows a bidirectional, parallel-terminated topology.
Table 1-10 details the allowed attributes that can be applied to the LVTTL I/O standard.
This standard is only available in the HR I/O banks.
X-Ref Target - Figure 1-3 8
Figure 1-38: LVTTL Bidirectional Termination
Table 1-10: Allowed Attributes for the LVTTL I/O Standards
Attributes
Primitives
IBUF/IBUFG OBUF/OBUFT/ IOBUF
IOSTANDARD LVTTL LVTTL
DRIVE N/A 4, 8, 12 (default), 16, 24
SLEW N/A {FAST, SLOW}
Z
0
IOB
IOB
LVTTL
Z
0
IOB
IOB
LVTTL LVTTL
V
TT
Note: V
TT
is any voltage from 0V to V
CCO
R
P
= Z
0
V
TT
R
P
= Z
0
ug471_c1_28_011811
LVTTL
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Xilinx SelectIO 7 Series Specifications

General

Brand	Xilinx
Model	SelectIO 7 Series
Category	Computer Hardware
Language	English