R
Virtex™-II Platform FPGAs: Detailed Description
Active Interconnect Technology
Local and global Virtex-II routing resources are optimized for speed and timing predictability, as well as to facilitate IP cores
implementation. Virtex-II Active Interconnect Technology is a fully buffered programmable routing matrix. All routing
resources are segmented to offer the advantages of a hierarchical solution. Virtex-II logic features like CLBs, IOBs, block
RAM, multipliers, and DCMs are all connected to an identical switch matrix for access to global routing resources, as shown
in Figure 47.
Switch
Matrix
Switch
CLB
Matrix
Switch
Matrix
Switch
Matrix
18Kb
MULT
IOB
BRAM
18 x 18
Switch
Matrix
Switch
Matrix
DCM
Switch
Matrix
DS031_55_101000
Figure 47: Active Interconnect Technology
Each Virtex-II device can be represented as an array of switch matrixes with logic blocks attached, as illustrated in Figure 48.
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
IOB
IOB
IOB
IOB
IOB
IOB
CLB
CLB
CLB
CLB
IOB
CLB
CLB
CLB
CLB
DCM
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
Switch
Matrix
DS031_34_110300
Figure 48: Routing Resources
DS031-2 (v3.0) August 1, 2003
Product Specification
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