EP2SGX90EF1152C5ES Altera, EP2SGX90EF1152C5ES Datasheet - Page 68
EP2SGX90EF1152C5ES
Manufacturer Part Number
EP2SGX90EF1152C5ES
Description
IC STRATIX II GX 90K 1152-FBGA
Manufacturer
Altera
Series
Stratix® II GXr
Datasheet
1.EP2SGX30DF780C5.pdf
(316 pages)
Specifications of EP2SGX90EF1152C5ES
Number Of Logic Elements/cells
90960
Number Of Labs/clbs
4548
Total Ram Bits
4520448
Number Of I /o
558
Voltage - Supply
1.15 V ~ 1.25 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 70°C
Package / Case
1152-FBGA
For Use With
544-1725 - PCIE KIT W/S II GX EP2SGX90N544-1724 - SI KIT W/SII GX EP2SGX90N544-1702 - VIDEO KIT W/SII GX EP2SGX90N
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Number Of Gates
-
Other names
544-1765
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Adaptive Logic Modules
Figure 2–44. Example of a 3-Bit Add Utilizing Shared Arithmetic Mode
2–60
Stratix II GX Device Handbook, Volume 1
3-Bit Add Example
implemented in adders.
implemented in LUTs.
+
2nd stage add is
1st stage add is
1 1 0 1
1 1 0
+
Binary Add
1 1 0
1 0 1
0 1 0
0 0 1
+
C2 C1 C0
R3 R2 R1 R0
Shared Arithmetic Chain
In addition to the dedicated carry chain routing, the shared arithmetic
chain available in shared arithmetic mode allows the ALM to implement
a three-input add, which significantly reduces the resources necessary to
implement large adder trees or correlator functions. The shared
arithmetic chains can begin in either the first or fifth ALM in a LAB. The
Quartus II Compiler automatically links LABs to create shared arithmetic
chains longer than 16 (8 ALMs in arithmetic or shared arithmetic mode).
For enhanced fitting, a long shared arithmetic chain runs vertically
+
+
Equivalents
Decimal
X2 X1 X0
S2 S1 S0
2 x 6
Y2 Y1 Y0
Z2 Z1 Z0
+
13
6
5
2
1
X0
Y0
Z0
X1
Y1
Z1
X2
Y2
Z2
ALM Implementation
ALM 1
ALM 2
3-Input
3-Input
3-Input
3-Input
3-Input
3-Input
3-Input
3-Input
LUT
LUT
LUT
LUT
LUT
LUT
LUT
LUT
S0
C0
S1
C1
S2
C2
shared_arith_in = '0'
'0'
carry_in = '0'
Altera Corporation
October 2007
R0
R1
R2
R3
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