Spartan-II
True Dual-Port
Block RAM
Port A
Port B
W
R
W
R
W
R
R
W
Data Flow Spartan-II
A to B Yes
B to A Yes
A to A Yes
B to B Yes
Spartan-II Block RAM
• True Dual-port Static RAM - 4K bits
– Independently configurable port data width
– 4K x 1; 2K x 2; 1K x 4; 512 x 8; 256 x 16
– Fast synchronous read and write
• 2.5-ns clock-to-output with 1-ns input address/data setup
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