The 8080 was an early 8 bit processor developed by intel, and was a precursor to modern x86 processors.
Questions tagged [8080]
7 questions
33
votes
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Why would a Intel 8080 chip be destroyed if +12 V is connected before −5 V?
The Intel 8080 is a classic microprocessor released in 1974, fabricated using an enhancement-mode NMOS process, and shows various unique characteristics related to this process, such as the requirement of a two-phase clock, and three power rails:…
比尔盖子
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How to produce a middle C on intel 8080?
This is a example problem in my book. Assuming pin 5 of port 4 is connected to an amplifier that drives a loudspeaker, the solution is given as,
The frequency of middle C is $$f=261.63\ \text{Hz}$$
So, the time period is,
$$T=\frac1{f}=3822\ \mu…
sigsegv
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Why did the datasheet mention this interface?
I have a ST32F103RET6 MCU. I got the datasheet (and refrence manual). When I read the datasheet (and refrence manual), I found this section:
Now I have several questions about it:
Why does the datasheet (and refrence manual) mention this…
Roh
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Fastest LCD data throughput 8080 or SPI
I recently ordered a 128x128 graphic black/white display with a ST7541 chip-on-glass. It took me 2,5 days debugging and frustration to discover that they didn't wire SPI through the flatcable.
A big trap for beginners, when you use the datasheet of…
user3411864
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Simplest display for homemade 8080 based computer-what to use?
I'm designing a 8080 processor based computer and I want it to be able to at least output something visually.
I have thought about using SMD LED matrix made by myself, but even with the 160 x 120 px it would cost about $65 for the LEDs themselves,…
Grzegorz
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vote
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ILI9341 pinout problem
I recently ordered a LCD TFT 3.2 inch touch display from aliexpress:
ILI9341_3.2_TFT_LCD
I'm currently going through documentation for the chip (ILI9341_documentation) and I can't "connect" all the pins on the pcb of the display to the pins on the…
Lazyboy
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8080 assembly comparing which of the numbers is greater etc
In my 8080 assembly project I need to check if user entered digits and if so do some stuff on it, otherwise display some error and close app.
Normally i would do it like that
CPI '0';if below '0'
JS ERR
CPI 58D;if over '9'
JNS ERR
but there's no JN…
Rotek
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