FLEX 6000 Programmable Logic Device Family Data Sheet
Figure 1. OptiFLEX Architecture Block Diagram
IOEs
Row FastTrack
Interconnect
Row FastTrack
Interconnect
Column FastTrack
Interconnect
IOEs
Column FastTrack
Interconnect
Local Interconnect
(Each LAB accesses
two local interconnect
areas.)
Logic Elements
FLEX 6000 devices provide four dedicated, global inputs that drive the
control inputs of the flipflops to ensure efficient distribution of high-
speed, low-skew control signals. These inputs use dedicated routing
channels that provide shorter delays and lower skews than the FastTrack
Interconnect. These inputs can also be driven by internal logic, providing
an ideal solution for a clock divider or an internally generated
asynchronous clear signal that clears many registers in the device. The
dedicated global routing structure is built into the device, eliminating the
need to create a clock tree.
Logic Array Block
An LAB consists of ten LEs, their associated carry and cascade chains, the
LAB control signals, and the LAB local interconnect. The LAB provides
the coarse-grained structure of the FLEX 6000 architecture, and facilitates
efficient routing with optimum device utilization and high performance.
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Altera Corporation
ALTERA [ ALTERA CORPORATION ]
