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Dual-ported RAM (DPRAM), also called dual-port RAM, is a type of random-access memory (RAM) that can be accessed via two different buses.. A simple dual-port RAM may allow only read access through one of the ports and write access through the other, in which case the same memory location cannot be accessed simultaneously through the ports since a write operation modifies the data and therefore ...
Dual-ported video RAM (VRAM) is a dual-ported variant of dynamic RAM (DRAM), which was once commonly used to store the framebuffer in graphics adapters.. Dual-ported RAM allows the CPU to read and write data to memory as if it were a conventional DRAM chip, while adding a second port that reads out data.
List of free analog and digital electronic circuit simulators, available for Windows, macOS, Linux, and comparing against UC Berkeley SPICE. The following table is split into two groups based on whether it has a graphical visual interface or not.
VHDL-1987,-1993,-2002,-2008, V2001, SV2005, SV2009, SV2012, SV2017: The original Modeltech (VHDL) simulator was the first mixed-language simulator capable of simulating VHDL and Verilog design entities together. In 2003, ModelSim 5.8 was the first simulator to begin supporting features of the Accellera SystemVerilog 3.0 standard. [1]
The HDL code then undergoes a code review, or auditing. In preparation for synthesis, the HDL description is subject to an array of automated checkers. The checkers report deviations from standardized code guidelines, identify potential ambiguous code constructs before they can cause misinterpretation, and check for common logical coding errors ...
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Am29700/701 Non-Inverting Schottky 64-Bit Random Access Memory (RAM) Am29702/703 Schottky 64-Bit RAM; Am29705 16-Word by 4-Bit 2-Port RAM; Am29707 Multi-Port SRAM; Am29720/721 Low-Power Schottky 256-Bit RAM; Am29750/Am29752 32-Word by 8-Bit Programmable Read-Only Memory (PROM) Am29754/Am29755 256-Word by 4-Bit PROM; Am29770/Am29771 2048-Bit ...
However, it can open two memory pages at once, which simulates the dual-port nature of other video RAM technologies. The earliest known SGRAM memory are 8 Mbit [ 6 ] chips dating back to 1994: the Hitachi HM5283206, introduced in November 1994, [ 34 ] and the NEC μPD481850, introduced in December 1994. [ 35 ]