XCV405E-7BG556I XILINX [Xilinx, Inc], XCV405E-7BG556I Datasheet - Page 8
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XCV405E-7BG556I
Manufacturer Part Number
XCV405E-7BG556I
Description
Virtex-E 1.8 V Extended Memory Field Programmable Gate Arrays
Manufacturer
XILINX [Xilinx, Inc]
Datasheet
1.XCV405E-7BG556I.pdf
(116 pages)
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Virtex™-E 1.8 V Extended Memory Field Programmable Gate Arrays
In addition to the four basic LCs, the Virtex-E CLB contains
logic that combines function generators to provide functions
of five or six inputs. Consequently, when estimating the
number of system gates provided by a given device, each
CLB counts as 4.5 LCs.
Module 2 of 4
4
G2
G1
G4
G3
F2
F1
BX
BY
F4
F3
F5IN
CLK
G4
G3
G2
G1
BY
BX
SR
CE
F4
F3
F2
F1
LUT
LUT
Carry &
Control
Carry &
Control
COUT
CIN
Figure 5: Detailed View of Virtex-E Slice
WE
CK
A4
I3
I2
I1
I0
I3
I2
I1
I0
WSO
WSH
WE
WE
Figure 4: 2-Slice Virtex-E CLB
LUT
LUT
D
CE
D
CE
BX
RC
RC
SP
Slice 1
SP
BY DG
Q
Q
DI
DI
DI
O
O
www.xilinx.com
1-800-255-7778
0
1
0
1
YB
YQ
XB
X
XQ
Y
COUT
CY
CY
F2
F1
G4
G3
G2
G1
F4
F3
BX
BY
CIN
Look-Up Tables
Virtex-E function generators are implemented as 4-input
look-up tables (LUTs). In addition to operating as a function
generator, each LUT can provide a 16 x 1-bit synchronous
RAM. Furthermore, the two LUTs within a slice can be com-
F5
LUT
F6
LUT
Carry &
Control
Carry &
Control
COUT
CIN
D
CE
D
CE
INIT
REV
INIT
REV
ds022_05_092000
Q
Q
D
CE
D
CE
RC
SP
RC
SP
Slice 0
ds022_04_121799
Q
Q
YB
YQ
XB
F5
X
XQ
Y
DS025-2 (v2.1) July 17, 2002
XB
Y
YQ
X
XQ
YB
R
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