ep1m120 Altera Corporation, ep1m120 Datasheet - Page 30

• Manufacturer Part Number: ep1m120
• Description: Programmable Logic Device Family
• Manufacturer: Altera Corporation

Mercury Programmable Logic Device Family Data Sheet
30
The RapidLAB interconnect provides a specialized high-speed structure
to allow a central LAB to drive other LABs within a 10-LAB-wide region.
The RapidLAB lines drive alternating local LAB interconnect regions,
allowing communication to all LABs in the 10-LAB-wide region. Even
numbered LEs in a LAB directly drive a RapidLAB line that drives one set
of alternating local interconnect regions, while odd-numbered LEs drive
a RapidLAB line that drives the opposite set of alternating local
interconnect regions.
connections. This 10-LAB wide region of the RapidLAB interconnect is
repeated for every LAB in the row. The region covered by the RapidLAB
interconnect is smaller than 10 for source LABs that are four or five LABs
in from either edge of the LAB row. The RapidLAB row interconnect is
used for LAB-to-LAB routing; it is only used by I/O bands or ESBs
indirectly through other interconnects. The RapidLAB interconnect drives
an LE directly when that LE is in multiplier mode.
Figure 14
shows RapidLAB interconnect
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