EP2SGX90EF1152C3 Altera, EP2SGX90EF1152C3 Datasheet - Page 74
EP2SGX90EF1152C3
Manufacturer Part Number
EP2SGX90EF1152C3
Description
Stratix II GX
Manufacturer
Altera
Datasheet
1.EP2SGX90EF1152C3.pdf
(316 pages)
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MultiTrack Interconnect
Figure 2–47. Shared Arithmetic Chain, Carry Chain and Register Chain Interconnects
2–66
Stratix II GX Device Handbook, Volume 1
Routing to Adjacent ALM
Carry Chain & Shared
The C4 interconnects span four LABs, M512, or M4K blocks up or down
from a source LAB. Every LAB has its own set of C4 interconnects to drive
either up or down.
from a LAB in a column. The C4 interconnects can drive and be driven by
all types of architecture blocks, including DSP blocks, TriMatrix memory
blocks, and column and row IOEs. For LAB interconnection, a primary
LAB or its LAB neighbor can drive a given C4 interconnect. C4
interconnects can drive each other to extend their range as well as drive
row interconnects for column-to-column connections.
Arithmetic Chain
Interconnect
Local
Figure 2–48
Local Interconnect
Routing Among ALMs
in the LAB
ALM 1
ALM 2
ALM 3
ALM 4
ALM 5
ALM 6
ALM 7
ALM 8
shows the C4 interconnect connections
Register Chain
Routing to Adjacent
ALM's Register Input
Altera Corporation
October 2007
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