ep1s25 Altera Corporation, ep1s25 Datasheet - Page 40

• Manufacturer Part Number: ep1s25
• Description: Stratix Device Family Data Sheet
• Manufacturer: Altera Corporation

TriMatrix Memory
Figure 2–14. Shift Register Memory Configuration
2–26
Stratix Device Handbook, Volume 1
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m-Bit Shift Register
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Memory Block Size
TriMatrix memory provides three different memory sizes for efficient
application support. The large number of M512 blocks are ideal for
designs with many shallow first-in first-out (FIFO) buffers. M4K blocks
provide additional resources for channelized functions that do not
require large amounts of storage. The M-RAM blocks provide a large
single block of RAM ideal for data packet storage. The different-sized
blocks allow Stratix devices to efficiently support variable-sized memory
in designs.
The Quartus II software automatically partitions the user-defined
memory into the embedded memory blocks using the most efficient size
combinations. You can also manually assign the memory to a specific
block size or a mixture of block sizes.
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Altera Corporation
n Number
of Taps
July 2005