EP1SGX10C Datasheet, PDF (76/262 Pages) Altera Corporation – StratixGX FPGA Family

Stratix GX FPGA Family
Figure 54. C4 Interconnect Connections Note (1)
Row
Interconnect
C4 Interconnect
Drives Local and R4
Interconnects
up to Four Rows
C4 Interconnect
Driving Up
LAB
Adjacent LAB can
drive onto neighboring
LAB's C4 interconnect
Local
Interconnect
C4 Interconnect
Driving Down
Note to Figure 54:
(1) Each C4 interconnect can drive either up or down four rows.
C8 interconnects span eight LABs, M512, or M4K blocks up or down from
a source LAB. Every LAB has its own set of C8 interconnects to drive
either up or down. C8 interconnect connections between the LABs in a
column are similar to the C4 connections shown in Figure 54 with the
exception that they connect to eight LABs above and below. The C8
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