XC2VP70 Xilinx, Inc., XC2VP70 Datasheet - Page 31

• Manufacturer Part Number: XC2VP70
• Description: Virtex-ii Pro Field Programmable Gate Array
• Manufacturer: Xilinx, Inc.

Functional Description: FPGA
I/O standards. For a complete list, see the Virtex-II Pro Platform FPGA User Guide.
22
Recommended
Conventional
DCI Transmit
Conventional
Receive
Conventional
Transmit
DCI Receive
DCI Transmit
DCI Receive
Bidirectional
Reference
Resistor
Notes:
1. The SSTL-compatible 25Ω series resistor is accounted for in the DCI buffer,
2. Z 0 is the recommended PCB trace impedance.
Z 0
(2)
and it is not DCI controlled.
Figure 20: SSTL DCI Usage Examples
Virtex-II Pro
Virtex-II Pro
25Ω
25Ω
DCI
DCI
SSTL2_I or SSTL18_I
VRN = VRP = R = Z 0
(1)
(1)
R/2
R/2
50Ω
N/A
Z 0
Z 0
Z 0
Z 0
www.xilinx.com
1-800-255-7778
V
V
CCO
R
CCO
R
V
Virtex-II Pro
V
Virtex-II Pro
/2
CCO
/2
CCO
2R
2R
2R
DCI
2R
DCI
25Ω
25Ω
Virtex-II Pro
Virtex-II Pro
25Ω
Virtex-II Pro
SSTL2_II or SSTL18_II
(1)
(1)
DCI
VRN = VRP = R = Z 0
DCI
(1)
V
DCI
V
CCO
2R
2R
V
2R
2R
V
R/2
CCO
CCO
CCO
V
R/2
2R
2R
CCO
R
/2
R
50Ω
/2
Z 0
Z 0
Z 0
Z 0
Z 0
DS083-2_65b_011603
V
V
R
R
CCO
CCO
V
2R
2R
Virtex-II Pro
V
Virtex-II Pro
V
Virtex-II Pro
CCO
CCO
CCO
/2
2R
/2
2R
2R
DCI
2R
DCI
25Ω
DCI
DS083-2 (v2.9) October 14, 2003
Advance Product Specification
R