xc4000h Xilinx Corp., xc4000h Datasheet - Page 15
xc4000h
Manufacturer Part Number
xc4000h
Description
Logic Cell Array Families
Manufacturer
Xilinx Corp.
Datasheet
1.XC4000H.pdf
(40 pages)
- Current page: 15 of 40
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Figure 14. Fast Carry Logic in Each CLB
CIN 1
CIN 2
Figure 13. Simplified Block Diagram of XC4000 Configurable Logic Block
A1
B1
B0
A0
G4
G3
G2
G1
F4
F3
F2
F1
M
G4
G3
G2
G1
F4
F3
F2
F1
K
(CLOCK)
FUNCTION
FUNCTION
LOGIC
G1-G4
LOGIC
F1-F4
OF
OF
G'
F'
Carry
Logic
Carry
Logic
FUNCTION
LOGIC
F', G',
AND
of G1 - G4
of F1 - F4
OF
H1
Function
Function
Logic
Logic
H'
G'
F'
H1
COUT
C1
DIN
F'
G'
H'
G'
H'
H'
F'
SUM 1
SUM 0
X5373
DIN
F'
G'
H'
DIN
C2
2-21
G4
G3
G2
G1
F4
F3
F2
F1
Figure 15. CLB Function Generators Can Be Used as
C3
S/R
WE
WE
Generator
Generator
Function
Function
C4
G'
F'
Read/Write Memory Cells
DATA
DATA
EC
IN
IN
MULTIPLEXER CONTROLLED
BY CONFIGURATION PROGRAM
1
1
CONTROL
CONTROL
S/R
S/R
Write G'
Write F'
M
M
WE(S/R)
M
D
EC
D
EC
C1
Configuration Memory Bit
SD
RD
SD
RD
D1(H1)
Q
Q
C2
YQ
Y
XQ
X
16 x 2
D0(DIN)
C3
M
C4
X1519
EC
X6074
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