AT40KEL040 Datasheet, PDF(8/42 Page) ATMEL Corporation – Rad Hard Reprogrammable FPGAs with FreeRAM

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AT40KEL040 Datasheet, PDF (8/42 Pages) ATMEL Corporation – Rad Hard Reprogrammable FPGAs with FreeRAM

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Cell Connections

Figure 4. Cell Connections

Figure 4(a) depicts direct connections between a cell and its eight nearest neighbors.

Figure 4(b) shows the connections between a cell and five horizontal local buses (1 per

busing plane) and five vertical local buses (1 per busing plane).

CEL

plane

ï£±

ï£²

ï£³

plane 4 ï£±ï£²ï£³

plane 3 ï£±ï£²ï£³

plane

ï£±

ï£²

ï£³

plane

ï£±

ï£²

ï£³

ï£¼

ï£´

ï£½

ï£´

Horizontal

busing plane

ï£¾

WXYZL

CEL

Diagonal

direct connect

Vertical

busing plane

CEL

Orthogonal

direct connect

(a) Cell-to-cell Connections

(b) Cell-to-bus Connections

8 AT40KEL040

4155IâAEROâ06/06

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