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A look-up table is a table of constants stored in program memory
-Look-up tables can be used to speed up arithmetic operations
-The look-up table may be accessed using the DPTR or PC as a pointer to the start of the table. The A register is used as an index to the table.
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What is a look up table?
A look up table, is what it say, a list of data that is used in programing of micro controllers, it is a table that the program use to look up data that it need to do the job, it is a list of data and each data item is associated with a index, in other words where in the table it is, look at the examples at this link. http://patenttrade.net/phpBB2/viewtopic.php?p=21#21
Why there is no driver circuit needed between 8051 microcontroller and an optoisolater?
Are you referring to the original Intel 8051, or one of the many variants? The 8051 has weak internal pullups on the i/o pins, and can source only about 60 ua, but can sink 1.6 ma, still not much when it comes to driving the led in an opto. Some 8051-based dervatives can sink much more current. Atmel's 89C2051 for instance, can sink up to 20 ma per i/o pin. This can directly drive most optos.
Electrical wire gauge versus amps table?
Look up or Google this: National Electrical Code Table 310.16 This is the table you are looking for. You can find a link by following the related question below.
Why you use pull up resistor in microcontroller 8051?
Some devices are internally either in the open drain or in the open collector configuration. So in order to create a closed path for the current the device is pulled up with a resistor to the supply.
Where do you take the electrician exam?
look it up thats what i did?
What is the voltage of 8051 microcontroller?
This question is literally impossible to answer without knowing a specific part number (and manufacturer which is usually easy to determine because it is based off the part number). The 8051 was first used in the IBM type computer as the keyboard controller to send key presses to the CPU. It has since become an architecture that appears in a number of other places. There are several manufacturers that produce low cost and low power microcontrollers based upon the 8051 with other peripherals included in the same package. Because there are numerous 8051 controllers, there is no one standard for connecting them to power for each may design their controller to meet their own design guidelines. Older 8051 microcontrollers usually require a 5 V power supply. Newer 8051 microcontrollers are more likely to require a 3.3 V power supply. The only way to tell is to read the part number off the chip and look up the manufacturer's data sheets for that part number. Fortunately, most data sheets are online these days.
You are a prime number less than 30 what am you?
There are several; look up any table of prime numbers.There are several; look up any table of prime numbers.There are several; look up any table of prime numbers.There are several; look up any table of prime numbers.
How does a look up table work?
a look up table is when u have a drop down meneu x
Why reset circuit needed in 8051?
You need a reset circuit in the 8051, as in every logic circuit, in order to ensure that it starts up in a known state.
Draw the block diagram of 8051 series microcontroller?
You might want to look up an image online. You can use this to draw your own diagram and label the parts.
What is a look up table?
A look up table, is what it say, a list of data that is used in programing of micro controllers, it is a table that the program use to look up data that it need to do the job, it is a list of data and each data item is associated with a index, in other words where in the table it is, look at the examples at this link. http://patenttrade.net/phpBB2/viewtopic.php?p=21#21
How can you describe the periodic table to a 4th Grader?
the periodict table is about cemicals go on the internet on www.google.com and look up periodict table
Basic table set-up?
an arrangement of the cutlery and the flatware on the table in order to make the meal look elegance.
What is the contribution of Dechancourtois to periodic table?
Look up De Chancourtois.
How do you do look-up table in MATLAB?
The "MathWorks" website contains all the code required to execute a look-up table in MATLAB. The site also contains hints and tips on documentation as well as a troubleshooter facility.
Which row is carbon in the periodic table?
Look up "the photographic table of elements" on your favorite search engine but...its in the 2nd row.
How do you determine value of gold ore?
you can easily look up in the periodic table
