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ULTRARAM is a charge-based memory where the logic state is determined by the presence or absence of electrons in an FG (Front Gate). The FG is electrically isolated from the control gate (CG) by Al2O3 dielectric, and from the underlying channel by the InAs / AlSb TBRT heterostructure .
Each of the various components can be viewed as part of a hierarchy of memories (m 1, m 2, ..., m n) in which each member m i is typically smaller and faster than the next highest member m i+1 of the hierarchy. To limit waiting by higher levels, a lower level will respond by filling a buffer and then signaling for activating the transfer.
Virtex is the flagship family of FPGA products currently developed by AMD, originally Xilinx before being acquired by the former. [1] Other current product lines include Kintex (mid-range) and Artix (low-cost), each including configurations and models optimized for different applications. [2]
All semiconductor memory, not just RAM, has the property of random access. DRAM (Dynamic random-access memory) – This uses memory cells consisting of one MOSFET (MOS field-effect transistor) and one MOS capacitor to store each bit. This type of RAM is the cheapest and highest in density, so it is used for the main memory in computers.
Unlike many FPGAs, an external configuration ROM is not required, and the CPLD can function immediately on system start-up. For many legacy CPLD devices, routing constrains most logic blocks to have input and output signals connected to external pins, reducing opportunities for internal state storage and deeply layered logic.
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 ...
A soft microprocessor (also called softcore microprocessor or a soft processor) is a microprocessor core that can be wholly implemented using logic synthesis.It can be implemented via different semiconductor devices containing programmable logic (e.g., FPGA, CPLD), including both high-end and commodity variations.
Modern ASICs often include entire microprocessors, memory blocks including ROM, RAM, EEPROM, flash memory and other large building blocks. Such an ASIC is often termed a SoC (system-on-chip). Designers of digital ASICs often use a hardware description language (HDL), such as Verilog or VHDL, to describe the functionality of ASICs. [2]