OR2T15B7BA352-DB View Datasheet(PDF) - Lattice Semiconductor

Part Name

Description

Manufacturer

OR2T15B7BA352-DB

ORCA® Series 2 Field-Programmable Gate Arrays

Lattice Semiconductor 

ORCA Series 2 FPGAs

Data Sheet

November 2006

Interquad Routing

between top and bottom quadrants. Since hIQ and vIQ

blocks have the same logic, only the hIQ block is

In all the ORCA Series 2 devices, the PLC array is split described below.

into four equal quadrants. In between these quadrants, The interquad routing connects XL and XH lines. It

routing has been added to route signals between the

does not affect local routing (XSW, X1, X4, fast carry),

quadrants, especially to the quadrant in the opposite

corner. The two types of interquad blocks, vertical and

horizontal, are pitch matched to PICs. Vertical inter-

quad blocks (vIQ) run between quadrants on the left

S and right, while horizontal interquad blocks (hIQ) run

so local routing is the same, whether PLC-PLC con-

nections cross quadrants or not. There are no connec-

tions to the local lines in the interquad blocks. Figure 28

presents a (not to scale) view of interquad routing.

E TMID

IC D 5 5 5 5

EV UE SEE

DETAIL IN

FIGURE 29

T D TIN LMID

5

hIQ3[4:0]

5

hIQ2[4:0]

5

hIQ1[4:0]

5

hIQ0[4:0]

RMID

SELDEICSCONBMID

Figure 28. Interquad Routing

5-4538(F)

34

Lattice Semiconductor

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