XC4VFX12-11FFG668C Xilinx Inc, XC4VFX12-11FFG668C Datasheet - Page 60
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XC4VFX12-11FFG668C
Manufacturer Part Number
XC4VFX12-11FFG668C
Description
IC FPGA VIRTEX-4 FX 12K 668FCBGA
Manufacturer
Xilinx Inc
Series
Virtex™-4r
Specifications of XC4VFX12-11FFG668C
Number Of Logic Elements/cells
12312
Number Of Labs/clbs
1368
Total Ram Bits
663552
Number Of I /o
320
Voltage - Supply
1.14 V ~ 1.26 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 85°C
Package / Case
668-BBGA, FCBGA
For Use With
HW-V4-ML403-UNI-G - EVALUATION PLATFORM VIRTEX-4HW-AFX-FF668-400 - BOARD DEV VIRTEX 4 FF668
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Gates
-
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Part Number:
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Chapter 2: Digital Clock Managers (DCMs)
60
Phase-Shift Clock Input — PSCLK
Dynamic Reconfiguration Clock Input — DCLK
1.
2.
3.
The phase-shift clock (PSCLK) input pin provides the source clock for the DCM phase
shift. The PSCLK can be asynchronous (in phase and frequency) to CLKIN. The phase-shift
clock signal can be driven by any clock source (external or internal), including:
1.
2.
3.
4.
The frequency range of PSCLK is defined by PSCLK_FREQ_LF/HF (see the
Sheet). This input must be tied to ground when the CLKOUT_PHASE_SHIFT attribute is
set to NONE or FIXED.
The dynamic reconfiguration clock (DCLK) input pin provides the source clock for the
DCM's dynamic reconfiguration circuit. The frequency of DCLK can be asynchronous (in
phase and frequency) to CLKIN. The dynamic reconfiguration clock signal is driven by
any clock source (external or internal), including:
1.
2.
3.
4.
The frequency range of DCLK is described in the
reconfiguration is not used, this input must be tied to ground. See the dynamic
reconfiguration chapter in the
IBUFG – Global Clock Input Buffer
This is the preferred source for an external feedback configuration. When an IBUFG
drives a CLKFB pin of a DCM in the same top or bottom half of the device, the pad to
DCM skew is compensated for deskew.
BUFGCTRL – Internal Global Clock Buffer
This is an internal feedback configuration.
IBUF – Input Buffer
This is an external feedback configuration. When IBUF is used, the PAD to DCM input
skew is not compensated.
IBUF – Input Buffer
IBUFG – Global Clock Input Buffer
To access the dedicated routing, only the IBUFGs on the same edge of the device (top
or bottom) as the DCM can be used to drive a PSCLK input of the DCM.
BUFGCTRL – An Internal Global Buffer
Internal Clock – Any internal clock using general purpose routing.
IBUF – Input Buffer
IBUFG – Global Clock Input Buffer
Only the IBUFGs on the same edge of the device (top or bottom) as the DCM can be
used to drive a CLKIN input of the DCM.
BUFGCTRL – An Internal Global Buffer
Internal Clock – Any internal clock using general purpose routing.
www.xilinx.com
Virtex-4 Configuration Guide
Virtex-4 Data
for more information.
UG070 (v2.6) December 1, 2008
Sheet. When dynamic
Virtex-4 FPGA User Guide
Virtex-4 Data
R
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