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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-port dRAM controller 40 74F764: 74x765 1 dual-port dRAM controller with address latch 40 74F765: 74x776 1 8-bit latched transceiver for FutureBus: three-state and open-collector 28 SN74F776: 74x777 3 triple latched transceiver three-state and open-collector 20 74F777: 74x779 1 8-bit bidirectional binary counter three-state 16 MC74F779 ...
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. This makes it easy to interface with a video display controller (VDC), which sends a timing signal to the memory and receives data in the correct sequence as it draws the screen.
This ambiguity is intentional. Wishbone is made to let designers combine several designs written in Verilog, VHDL or some other logic-description language for electronic design automation (EDA). Wishbone provides a standard way for designers to combine these hardware logic designs (called "cores"). Wishbone is defined to have 8, 16, 32, and 64 ...
The original Verilog simulator, Gateway Design's Verilog-XL was the first (and only, for a time) Verilog simulator to be qualified for ASIC (validation) sign-off. After its acquisition by Cadence Design Systems, Verilog-XL changed very little over the years, retaining an interpreted language engine, and freezing language-support at Verilog-1995.
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 ...
Classical Verilog permitted only one dimension to be declared to the left of the variable name. SystemVerilog permits any number of such "packed" dimensions. A variable of packed array type maps 1:1 onto an integer arithmetic quantity. In the example above, each element of my_pack may be used in expressions as a six-bit integer. The dimensions ...
This enables interface analysis and exploration of a full range of hardware interface options such as streaming, single- or dual-port RAM plus various handshaking mechanisms. With interface synthesis the designer does not embed interface protocols in the source description. Examples might be: direct connection, one line, 2 line handshake, FIFO ...