Dci Usage Examples - Xilinx SelectIO 7 Series User Manual

DCI Usage Examples

•
•
X-Ref Target - Figure 1-13
7 Series FPGAs SelectIO Resources User Guide
UG471 (v1.10) May 8, 2018
Figure 1-13 provides examples illustrating the use of the HSTL_I_DCI and
HSTL_II_DCI I/O standards.
Figure 1-14 provides examples illustrating the use of the SSTL18_I_DCI and
SSTL18_II_DCI I/O standards.
Conventional
DCI Transmit
Conventional
Receive
7 Series FPGA
HP Bank DCI
Conventional
Transmit
DCI Receive
DCI Transmit
DCI Receive
Bidirectional
Reference
VRN = VRP = 2R = 2Z 0
Resistor
Recommended
Z 0
Notes:
1. Z 0 is the recommended PCB trace impedance.
Figure 1-13: HSTL DCI Usage Examples
www.xilinx.com
7 Series FPGA DCI—Only available in the HP I/O banks
HSTL_I
V /2
CCO
R
Z 0
V /2
CCO
R 2R
Z 0
2R
7 Series FPGA
HP Bank DCI
V V
CCO
2R
Z 0
2R
7 Series FPGA
HP Bank DCI
V V
CCO
2R
2R
Z 0
2R
2R
7 Series FPGA 7 Series FPGA
HP Bank DCI HP Bank DCI
V
CCO
N/A
7 Series FPGA
HP Bank DCI
VRN = VRP = 2R = 2Z 0
50Ω
HSTL_II
V /2 V /2
CCO CCO
R R
Z 0
V
V /2
CCO CCO
R
Z 0
/2 V
CCO CCO
2R
R
Z 0
2R
7 Series FPGA
HP Bank DCI
V
CCO CCO
2R
Z 0
2R
7 Series FPGA
HP Bank DCI
V
CCO
2R
2R
Z 0
2R
2R
7 Series FPGA
HP Bank DCI
50Ω
UG471_c1_15_011811
Send Feedback
31