micro controller hardware need help?

l I have micro controller 89c51 ,LED,switch,compiler(keil),programmer (flesh magic)
SWITCH is input device connected port pin P0.1
LED is output device connected port pin P1.1

I have written assembly code in keil software for example
assembler convert this code into machine code
for example

this hexa code burn into the memory of controller

1) I don't know where this hexa code burn into the RAM memory or ROM memory ?

2)I don't know this hexa code contain the data or address of data or both data and address?

3)software side ROM memory is use to write code but what is the work of rom memory on hardware

4)software side RAM memory is used to store address of data but what is work of RAM memory on hardware ?

5)micro controller take input from switch how the signal goes in internal circuit of micro controller throw the ALU , CONTROL unit, RAM, ROM , switch , LED, data register, address register, instruction register

simple controller take input and processor perform the task and LED will blink

how this process done ?


I have searched lot of about microcontroller and waste most of time to find out internal circuitry how they work but still I did not get correct logic please anyone help me to working of microcontroller with internal circuit.

Program (hex file contents) are stored in ROM memory of chip. RAM is used during program run. There is not RAM and ROM in software. Compiler only compiles the C / ASM code and convert it to hex file. Hex file contains Program data, RAM data, internal eeprom data and config words data. If there are any global variables in the code then space for it is allocated in RAM during run time before main() function is called. RAM will be empty when MCU is off. RAM gets loaded with global variables and their initial values on MCU startup.

milan.rajik said:

Program (hex file contents) are stored in ROM memory of chip. RAM is used during program run. There is not RAM and ROM in software. Compiler only compiles the C / ASM code and convert it to hex file. Hex file contains Program data, RAM data, internal eeprom data and config words data. If there are any global variables in the code then space for it is allocated in RAM during run time before main() function is called. RAM will be empty when MCU is off. RAM gets loaded with global variables and their initial values on MCU startup.

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thanks for interest
signal come from the port , where it goes I mean controller take input from signal , where this signal goes into microcontroller circuitry ?

See datasheet of any PIC MCU (the IO Ports section).

the signal from the input comes to a register which is related to the port. then cpu reads it.