XC5VLX50-1FFG676C Xilinx Inc, XC5VLX50-1FFG676C Datasheet - Page 44
XC5VLX50-1FFG676C
Manufacturer Part Number
XC5VLX50-1FFG676C
Description
IC FPGA VIRTEX-5 50K 676FBGA
Manufacturer
Xilinx Inc
Series
Virtex™-5 LXr
Datasheets
1.XC5VLX30-1FFG324C.pdf
(91 pages)
2.XC5VLX30-1FFG324C.pdf
(13 pages)
3.XC5VLX30-1FFG324C.pdf
(385 pages)
Specifications of XC5VLX50-1FFG676C
Total Ram Bits
1769472
Number Of Logic Elements/cells
46080
Number Of Labs/clbs
3600
Number Of I /o
440
Voltage - Supply
0.95 V ~ 1.05 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 85°C
Package / Case
676-BBGA, FCBGA
No. Of Logic Blocks
7200
No. Of Gates
50000
Family Type
Virtex-5 LX
No. Of Speed Grades
1
No. Of I/o's
440
Clock Management
PLL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
HW-V5-ML561-UNI-G - EVALUATION PLATFORM VIRTEX-5HW-V5-ML550-UNI-G - EVALUATION PLATFORM VIRTEX-5HW-V5-ML521-UNI-G - EVALUATION PLATFORM VIRTEX-5HW-V5GBE-DK-UNI-G - KIT DEV V5 LXT GIGABIT ETHERNET122-1508 - EVALUATION PLATFORM VIRTEX-5
Number Of Gates
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
122-1563
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Quantity:
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Part Number:
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Xilinx Inc
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Chapter 1: Clock Resources
44
BUFR Attributes and Modes
Clock division in the BUFR is controlled in software through the BUFR_DIVIDE attribute.
Table 1-8
Table 1-8: BUFR_DIVIDE Attribute
The propagation delay through BUFR is different for BUFR_DIVIDE = 1 and
BUFR_DIVIDE = BYPASS. When set to 1, the delay is slightly more than BYPASS. All other
divisors have the same delay BUFR_DIVIDE = 1. The phase relationship between the input
clock and the output clock is the same for all possible divisions except BYPASS.
The timing relationship between the inputs and output of BUFR when using the
BUFR_DIVIDE attribute is illustrated in
attribute is set to three. Sometime before this diagram CLR was asserted.
X-Ref Target - Figure 1-21
In
•
•
•
•
•
Notes:
1. Location constraint is available for BUFR.
BUFR_DIVIDE
Attribute Name
Figure
Before clock event 1, CE is asserted High.
After CE is asserted and time T
three rate of the input I. T
speed specification.
Note: The duty cycle is not 50/50 for odd division. The Low pulse is one cycle of I
longer.
At time event 2, CLR is asserted. After T
toggling.
At time event 3, CLR is deasserted.
At time T
rate of I.
CLR
CE
O
I
lists the possible values when using the BUFR_DIVIDE attribute.
1-21:
Figure 1-21: BUFR Timing Diagrams with BUFR_DIVIDE Values
BRCKO_O
1
Defines whether the output clock is a divided
version of the input clock.
after clock event 4, O begins toggling again at the divided by three
T
www.xilinx.com
BRCKO_O
BRCKO_O
BRCKO_O
Description
and other timing numbers are best found in the
Figure
, the output O begins toggling at the divide by
BRDO_CLRO
T
BRDO_CLRO
1-21. In this example, the BUFR_DIVIDE
from time event 2, O stops
2
Virtex-5 FPGA User Guide
UG190 (v5.3) May 17, 2010
1, 2, 3, 4, 5, 6, 7, 8
BYPASS (default)
3
Possible Values
4
ug190_1_21_041808
T
BRCKO_O
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