FLEX 6000 Programmable Logic Device Family Data Sheet
Figure 10. LAB Connections to Row & Column Interconnects
Each LE FastTrack Interconnect
output can drive six row channels.
Each local channel
driven by an LE can
drive two column
channels.
Each LE output signal driving
the FastTrack Interconnect can
drive two column channels.
At each intersection,
four row channels can
drive column channels.
Row
Interconnect
Each local channel
driven by an LE can
drive four row channels.
Row interconnect
drives the local
interconnect.
LE
From Adjacent
Local Interconnect
LE
Local Interconnect
Column Interconnect
Any column channel can
drive six row channels.
An LE can be driven by any signal
from two local interconnect areas.
For improved routability, the row interconnect consists of full-length and
half-length channels. The full-length channels connect to all LABs in a
row; the half-length channels connect to the LABs in half of the row. In
addition to providing a predictable, row-wide interconnect, this
architecture provides increased routing resources. Two neighboring LABs
can be connected using a half-length channel, which saves the other half
of the channel for the other half of the row. One-third of the row channels
are half-length channels.
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Altera Corporation
ALTERA [ ALTERA CORPORATION ]
