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You will need a 8051 device programmer that connect to a PC with software to drive the programmer
The at89c52 are ones that are more advanced. This means that they are programmable compared to the 8051 which is not. So this makes a really big difference.
a powerful feature of 8051 I/O ports is their capability to access individual bits of the port without altering the rest of the bits in that port. of the four 8051 ports we can access either the entire 8 bits or any single bit without altering the rest
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.
In general, personal preference and experience is what it comes down to. There are some PIC's that have built in RF systems; I don't believe there are any 8051's with this capability.
Atmel's family say that 8051 controller follows the von-nuemann architecture. because register to register operation not possible in all 8051 family. if it is harvard means, it must support register to register transfer.Hence it concludes that 8051 followed by von-nuemann or Princeton architecture...
pc and stack pointer
In the 8051 microcontroller, the function of 02h of int 21h is to output a character to the standard output device, typically the serial port. When this interrupt is called, it takes a character from the accumulator (register A) and sends it to the output. This is commonly used for displaying characters on a terminal or for debugging purposes.
8 bit
To reset the TMOD (Timer Mode) register in the 8051 microcontroller, you need to write a value of 00H to the TMOD register. This can be done by executing the instruction MOV TMOD, #00H in your assembly code. This action clears any previously set timer modes and configurations, effectively resetting the timers to their default state. After resetting, you can reconfigure the timers as needed by writing new values to the TMOD register.
The address range of the Special Function Register (SFR) bank in the 8051 microcontroller architecture typically spans from 0x80 to 0xFF. This range includes various control and status registers used for configuring and managing the microcontroller's operation. Each SFR has a specific function, such as timer control, interrupt management, and I/O port settings. Accessing these registers allows for low-level hardware manipulation and control.
because i said so thats why
Intel
how many interrupts in 8051
avr is high speed cmpar to 8051.in 8051 there are less number of instructions
it store address.
The 8051 runs on +5vdc.