參數(shù)資料
型號: XCV812E-8FG900C
廠商: XILINX INC
元件分類: FPGA
英文描述: Virtex-E 1.8 V Extended Memory Field Programmable Gate Arrays
中文描述: FPGA, 4704 CLBS, 254016 GATES, 416 MHz, PBGA900
封裝: PLASTIC, FBGA-900
文件頁數(shù): 8/116頁
文件大?。?/td> 1087K
代理商: XCV812E-8FG900C
Virtex-E 1.8 V Extended Memory Field Programmable Gate Arrays
Module 2 of 4
4
www.xilinx.com
1-800-255-7778
DS025-2 (v2.1) July 17, 2002
R
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.
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-
Figure 4:
2-Slice Virtex-E CLB
F1
F2
F3
F4
G1
G2
G3
G4
Carry &
Control
Carry &
Control
Carry &
Control
Carry &
Control
LUT
CIN
CIN
COUT
COUT
YQ
XQ
XQ
YQ
X
XB
Y
YB
YB
Y
BX
BY
BX
BY
G1
G2
G3
G4
F1
F2
F3
F4
Slice 1
Slice 0
XB
X
LUT
LUT
LUT
D
CE
Q
RC
SP
D
CE
Q
RC
SP
D
CE
Q
RC
SP
D
CE
Q
RC
SP
ds022_04_121799
Figure 5:
Detailed View of Virtex-E Slice
BY
F5IN
SR
CLK
CE
BX
YB
Y
YQ
XB
X
XQ
G4
G3
G2
G1
F4
F3
F2
F1
CIN
0
1
1
0
F5
F5
ds022_05_092000
COUT
CY
D
Q
D
Q
F6
CK
WE
A4
WSO
WSH
BY DG
BX
DI
DI
O
WE
I3
I2
I1
I0
LUT
CY
I3
I2
I1
I0
O
DI
WE
LUT
INIT
INIT
REV
REV
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