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EP3C40 bảng dữ liệu(PDF) 36 Page - Altera Corporation |
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EP3C40 bảng dữ liệu(HTML) 36 Page - Altera Corporation |
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36 / 274 page ![]() 3–2 Chapter 3: Memory Blocks in the Cyclone III Device Family Overview Cyclone III Device Handbook December 2011 Altera Corporation Volume 1 Table 3–1 lists the features supported by the M9K memory f For information about the number of M9K memory blocks for the Cyclone III device family, refer to the Cyclone III Device Family Overview chapter. Table 3–1. Summary of M9K Memory Features Feature M9K Blocks Configurations (depth × width) 8192 × 1 4096 × 2 2048 × 4 1024 × 8 1024 × 9 512 × 16 512 × 18 256 × 32 256 × 36 Parity bits v Byte enable v Packed mode v Address clock enable v Single-port mode v Simple dual-port mode v True dual-port mode v Embedded shift register mode (1) v ROM mode v FIFO buffer (1) v Simple dual-port mixed width support v True dual-port mixed width support (2) v Memory initialization file (.mif) v Mixed-clock mode v Power-up condition Outputs cleared Register asynchronous clears Read address registers and output registers only Latch asynchronous clears Output latches only Write or read operation triggering Write and read: Rising clock edges Same-port read-during-write Outputs set to Old Data or New Data Mixed-port read-during-write Outputs set to Old Data or Don’t Care Notes to Table 3–1: (1) FIFO buffers and embedded shift registers that require external logic elements (LEs) for implementing control logic. (2) Width modes of ×32 and ×36 are not available. |
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