XC4VFX140-10FFG1517I Xilinx Inc, XC4VFX140-10FFG1517I Datasheet - Page 385
XC4VFX140-10FFG1517I
Manufacturer Part Number
XC4VFX140-10FFG1517I
Description
IC FPGA VIRTEX-4FX 140K 1517FBGA
Manufacturer
Xilinx Inc
Series
Virtex™-4r
Specifications of XC4VFX140-10FFG1517I
Number Of Logic Elements/cells
142128
Number Of Labs/clbs
15792
Total Ram Bits
10174464
Number Of I /o
768
Voltage - Supply
1.14 V ~ 1.26 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 100°C
Package / Case
1517-BBGA, FCBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Gates
-
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Virtex-4 FPGA User Guide
UG070 (v2.6) December 1, 2008
R
.
Clock Event 1
The entire first word CDAB has been sampled into the input side registers of the ISERDES.
The Bitslip pin is not asserted, so the word propagates through the ISERDES without any
realignment.
Clock Event 2
The second word CDAB has been sampled into the input side registers of the ISERDES.
The Bitslip pin is asserted, which causes the Bitslip controller to shift all bits internally by
1 bit to the right.
Clock Event 3
The third word CDAB has been sampled into the input side registers of the ISERDES. The
Bitslip pin is asserted for a second time, which causes the Bitslip controller to shift all bits
internally by three bits to the left.
On this same edge of CLKDIV, the first word sampled is presented to Q1–Q4 without any
realignment. The actual bits from the input stream that appear at the Q1–Q4 outputs
during this cycle are shown in A of
BITSLIP
CLKDIV
Q4–Q1
A
B
C
CLK
Q1–Q4 During Clock Event 3
(No Bitslip)
Q1–Q4 During Clock Event 4
(1st Bitslip, Rotate 1 Bit to Right)
Q1–Q4 During Clock Event 5
(2nd Bitslip, Rotate 3 Bits to Left)
D
Figure 8-13: Bits from Data Input Stream (D) of
C D A B C D
Figure 8-12: Bitslip Timing Diagram
www.xilinx.com
Event 1
Clock
Input Serial-to-Parallel Logic Resources (ISERDES)
Figure
Bitslip1
A B C D A B
8-13.
Event 2
Clock
C D A B C D
C D A B C D
C D A B C D
Bitslip2
CDAB
Event 3
Clock
C D
A B C D A B
A B C D A B
A B C D A B
BCDA
Event 4
Figure 8-12
Clock
UG070_c8_18_040207
UG070_8_09_032507
ABCD
Event 5
Clock
C D
C D
C D
385
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