Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [intel]

Intel is a semiconductor manufacturer headquartered in the United States. They are best known for their x86 range of microprocessors and associated chipsets that are the basis of most personal computers.

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Why does Intel's Haswell chip allow floating point multiplication to be twice as fast as addition?

I was reading this very interesting question on Stack Overflow: Is integer multiplication really done at the same speed as addition on a modern CPU? One of the comments said: "It's worth nothing that on Haswell, the FP multiply throughput is double…
Nike Dattani
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Fan-out of the Intel 8086

I'm studying Intel 8086 processor. I can't understand why the "Fan-out" column is like that in the table below I understand that only one "74 family" chips or five "74LS family" gates can be connected to 8086 output pin. 8086 can sink up to 2.0mA.…
hskim
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How does an Intel processor "talk" to an I2C device?

I don't come from an Electronics background, so please bear with me. Assume an Intel processor wants to talk to a temperature sensor over the I2C bus. How does the underlying communication look like? So far I understand, Intel processors use…
sherlock
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Upload ASM code on Intel 8086 chip

I have been struggling to find a method to actually run any assembly code on my 8086 chip. I have an 8086 chip and I am trying to implement it on hardware to power up a LED or anything simple. On Proteus's simulation, this is easy to do because…
Mora
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"recommended that CLK begin toggling within 150 ms ... to ensure long-term reliability of the device" -- why?

In Intel's Pentium Processor Family Developer Manual, regarding the CPU clock, it says that "it is recommended that CLK begin toggling within 150 ms after VCC reaches its proper operating level. This recommendation is to ensure long-term reliability…
Zane Kaminski
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Intel x86 and patent implications

It's been a long time since x86 was introduced (80386 for example was manufactured 27 years ago... Oh god I am old), so I wonder, what is stopping 3rd party companies from manufacturing x86-compatible processors? Also, I've heard that one cannot…
BarsMonster
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How to blink LED with 1.8V?

I am experimenting with an Intel Edison mini breakout board with pinout like here: http://fab-lab.eu/wp-content/uploads/2014/10/Edison_IO_LED.jpg Now, I soldered header pins to plug the board into a breadboard. Unfortunately, the GPIO levels are…
poseid
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Why are smartphones and tablets ARM based?

Why don't these devices use Intel processors like laptops do? Why are they restricted to ARM? Also for Windows 8, do they want ARM just for tablets and smartphones or is it also for laptops/desktops (is that even possible)?
4thSpace
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x86 Motherboard Bring Up - Intel Tiger Lake UP3 CPU

For those who has experience with Intel x86 motherboard design and bring up. I'm in the middle of motherboard bring-up that has Intel Tiger Lake UP3 CPU. Seems like I had a good run so far at power-up sequence. here is a list of all power rails \…
Firas Abd El Gani
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Why is the 8061 microcontroller described as having 256 bytes of internal memory?

According to doc (http://www.auto-diagnostics.info/pdf/ford_eectch98.pdf), this 8061 microprocessor chip contains 256bytes of internal RAM (also referred to as register file in the doc). However, the only register file named in this diagram is a…
Jt90
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Difference between Micro-Operations in RISC and CISC processors

I've read that the modern Intel processors use the CISC instructions on the top, which are converted into RISC-like simpler instructions in the form of Micro-Operations at the back-end. So if Intel micro-ops are RISC-like simple hardware level…
Kraken
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Difference between 2-way and 4-way caches?

I don't fully understand this picture: If the data and instruction caches are separated, doesn't that mean that this CPU is not von Neumann model but Harvard model? And what does it mean that one cache is 2-way and one cache is 4-way?
Niklas Rosencrantz
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Where is the Intel Common Redundant Power Supply (CRPS) Standard Specified?

Intel server reference designs use the Intel Common Redundant Power Supply Standard (CRPS). These documents include a brief over view of CRPS with information like the pin names and refer the reader to the CRPS specification document for more…
Pete
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Intel 8042: what are "test inputs"?

I've implemented a driver for the Intel 8042 (keyboard controller in the IBM PC AT). The IBM 5170 (PC AT) Technical Reference served as my, well, reference for that. The output port and the test input port both contain "test inputs" (pp. 1-44): I…
cadaniluk
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What does the "side-band" and "in-band" mean in the context of digital circuit?

I read below content from the Intel On-chip System Fabric (IOSF) spec. AS I understand, the IOSF is a technology for chip reuse and interconnect. The sideband message interface covers most communication that is not sent using inband transactions…
smwikipedia
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