XC4VFX40-11FFG1152C Xilinx Inc, XC4VFX40-11FFG1152C Datasheet - Page 345
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XC4VFX40-11FFG1152C
Manufacturer Part Number
XC4VFX40-11FFG1152C
Description
IC FPGA VIRTEX-4 FX 40K 1152FBGA
Manufacturer
Xilinx Inc
Series
Virtex™-4r
Specifications of XC4VFX40-11FFG1152C
Number Of Logic Elements/cells
41904
Number Of Labs/clbs
4656
Total Ram Bits
2654208
Number Of I /o
448
Voltage - Supply
1.14 V ~ 1.26 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 85°C
Package / Case
1152-BBGA, FCBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Gates
-
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Part Number:
XC4VFX40-11FFG1152C
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Virtex-4 FPGA User Guide
UG070 (v2.6) December 1, 2008
R
Instantiating IDELAYCTRL with Location (LOC) Constraints
The most efficient way to use the IDELAYCTRL module is to define and lock down the
placement of every IDELAYCTRL instance used in a design. This is done by instantiating
the IDELAYCTRL instances with location (LOC) constraints. The user must define and
lock placement of all ISERDES and IDELAY components using the delay element.
(IOBDELAY_TYPE attribute set to FIXED or VARIABLE). Once completed, IDELAYCTRL
sites can be chosen and LOC constraints assigned. Xilinx strongly recommends using
IDELAYCTRL with a LOC constraint.
Figure 7-17: Instantiate IDELAYCTRL Without LOC Constraints - RDY Connected
The VHDL and Verilog use models for instantiating an IDELAYCTRL primitive
without LOC constraints with the RDY port connected are provided.
VHDL Use Model
-- Only one instance of IDELAYCTRL primitive is instantiated.
-- The RDY port is connected
dlyctrl:IDELAYCTRL
Verilog Use Model
// Only one instance of IDELAYCTRL primitive is instantiated.
// The RDY port is connected
IDELAYCTRL dlyctrl (
The resulting circuitry after instantiating the IDELAYCTRL components is illustrated
in
REFCLK
Figure
RST
7-17.
port map(
.
.
.
www.xilinx.com
);
.
.
.
RDY => rdy,
REFCLK => refclk,
RST => rst
);
.RDY(rdy),
.REFCLK(refclk),
.RST(rst)
all IDELAYCTRL
Replicated for
Instantiated by user
REFCLK
RST
REFCLK
RST
REFCLK
RST
IDELAYCTRL
IDELAYCTRL
IDELAYCTRL
sites
.
.
.
RDY
RDY
RDY
ILOGIC Resources
Auto-generated by
mapper tool
ug070_7_17_080104
RDY
345
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