what is clock domain crossing in vlsi?
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In digital electronic design a clock domain crossing (CDC), or simply clock crossing, is the traversal of a signal in a synchronous digital circuit from one clock domain into another. If a signal does not assert long enough and is not registered, it may appear asynchronous on the incoming clock boundary.
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Inertial delay - the time taken by the signal to travel from the input of NAND gate 'A' to the output of NAND gate 'A' is called the inertial delay. So, in summary, transport delays relate to wires, and inertial delays relate to logic gates.
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This is just two wires, called SCL and SDA. SCL is the clock line. It is used to synchronize all data transfers over the I2C bus. SDA is the data line. The SCL & SDA lines are connected to all devices on the I2C bus.
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In synchronous counter, all flip flops are triggered with same clock simultaneously. In asynchronous counter, different flip flops are triggered with different clock, not simultaneously. 2. Synchronous Counter is faster than asynchronous counter in operation.
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Timer Control Register (TCON): TCON is another register used to control operations of counter and timers in microcontrollers. It is an 8-bit register wherein four upper bits are responsible for timers and counters and lower bits are responsible for interrupts.
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VHDL is a strongly typed language. This means that every object assumes the value of its nominated type. To put it very simply, the data type of the left-hand side (LHS) and right-hand side (RHS) of a VHDL statement must be the same.
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The two wires, or lines are called Serial Clock (or SCL) and Serial Data (or SDA). The SCL line is the clock signal which synchronize the data transfer between the devices on the I2C bus and it's generated by the master device. The other line is the SDA line which carries the data.
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['Look-up table (LUT): This element performs logic operations.', 'Flip-Flop (FF): This register element stores the result of the LUT.', 'Wires: These elements connect elements to one another.']
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The T Flip-Flop The T or "toggle" flip-flop changes its output on each clock edge, giving an output which is half the frequency of the signal to the T input. ... It can be made from a J-K flip-flop by tying both of its inputs high.
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DRV(Design Rule Violations) and DRC(Design rule check) are the terms used judge the quality of chip in different stages in VLSI Physical Design. DRC: It is actually used for making sure layout of a design must be in accordance with a set of predefined technology rules given by the foundry for manufacturability.
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Edge triggering is a type of triggering that allows a circuit to become active at the positive edge or the negative edge of the clock signal. In contrast, level triggering is a type of triggering that allows a circuit to become active when the clock pulse is on a particular level.
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SPI interface allows to transmit and receive data simultaneously on two lines (MOSI and MISO). Clock polarity (CPOL) and clock phase (CPHA) are the main parameters that define a clock format to be used by the SPI bus. ... CPHA parameter is used to shift the sampling phase.
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The T or "toggle" flip-flop changes its output on each clock edge, giving an output which is half the frequency of the signal to the T input. It is useful for constructing binary counters, frequency dividers, and general binary addition devices.
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+ = . (1) Propagation delays tPLH and tPHL are defined as the times required for output voltage to reach the middle between the low and high logic levels, i.e. 50 % of VDD in our case of CMOS logic.
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In a shift register, the input of element N is the output of element N-1, and all elements use the same clock. In a counter, the input of element N is the inverse of its output, and the clock of element N+1 is the output of element N.
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VHDL is not a software programming language, rather it describes hardware. Hardware fundamentally works in parallel (for example, two gates will perform their function on their inputs simultaneously), and hence concurrency is built into VHDL.
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Base Clock will be the standard clock speed of your GPU 3D Engine, Memory Clock and Shader Clock. Boost Clock is the clockspeed in which your GPU will utilize for possible reasons: High GPU load.