Visible to Intel only — GUID: eis1395305678326
Ixiasoft
Visible to Intel only — GUID: eis1395305678326
Ixiasoft
2.3.1. Supported Memory Operation Modes
Memory Operation Mode | Related IP Core | Description |
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Single-port RAM | RAM: 1-PORT IP Core | Single-port mode supports non-simultaneous read and write operations from a single address. Use the read enable port to control the RAM output ports behavior during a write operation:
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Simple dual-port RAM | RAM: 2-PORT IP Core | You can simultaneously perform one read and one write operations to different locations where the write operation happens on Port A and the read operation happens on Port B. In this memory mode, the M9K memory blocks support separate wren and rden signals. To save power, keep rden signal low (inactive) when not reading. |
True dual-port RAM | RAM: 2-PORT IP Core | You can perform any combination of two port operations:
In this memory mode, the M9K memory blocks support separate wren and rden signals. To save power, keep rden signal low (inactive) when not reading. |
Single-port ROM | ROM: 1-PORT IP Core | Only one address port is available for read operation. You can use the memory blocks as a ROM.
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Dual-port ROM | ROM: 2-PORT IP Core | The dual-port ROM has almost similar functional ports as single-port ROM. The difference is dual-port ROM has an additional address port for read operation. You can use the memory blocks as a ROM.
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Shift-register | Shift Register (RAM-based) IP Core | You can use the memory blocks as a shift-register block to save logic cells and routing resources. The input data width (w), the length of the taps (m), and the number of taps (n) determine the size of a shift register (w × m × n). The size of the shift register must be less than or equal to the maximum number of memory bits (9,216 bits). The size of (w × n) must be less than or equal to the maximum of width of the blocks (36 bits). You can cascade memory blocks to implement larger shift registers. |
FIFO | FIFO IP Core | You can use the memory blocks as FIFO buffers.
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