EP2A15 Datasheet, PDF (20/99 Pages) Altera Corporation – Programmable Logic Device Family

APEX II Programmable Logic Device Family Data Sheet
The FastTrack interconnect consists of row and column interconnect
channels that span the entire device. The row interconnect routes signals
throughout a row of MegaLAB structures; the column interconnect routes
signals throughout a column of MegaLAB structures. When using the row
and column interconnect, an LE, IOE, or ESB can drive any other LE, IOE,
or ESB in a device. See Figure 9.
Figure 9. APEX II Interconnect Structure
Row
I/O
I/O
I/O
I/O
Interconnect
I/O
MegaLAB
MegaLAB
MegaLAB
MegaLAB
I/O
MegaLAB
MegaLAB
MegaLAB
MegaLAB
I/O
I/O
Column
Interconnect
MegaLAB
I/O
MegaLAB
MegaLAB
MegaLAB
I/O
I/O
I/O
I/O
I/O
A row line can be driven directly by LEs, IOEs, or ESBs in that row.
Further, a column line can drive a row line, allowing an LE, IOE, or ESB to
drive elements in a different row via the column and row interconnect.
The row interconnect drives the MegaLAB interconnect to drive LEs,
IOEs, or ESBs in a particular MegaLAB structure.
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Altera Corporation