Digital Electronics - The 8051 Microcontroller - Discussion
Discussion Forum : The 8051 Microcontroller - General Questions (Q.No. 3)
3.
The 8051 has ________ 16-bit counter/timers.
Discussion:
19 comments Page 1 of 2.
Debojyoti saha said:
1 decade ago
The 8051 has two 16 bit timer. This two timers are basically a 16 bit register. Which is incremented based on the clock pulse applied on it. The timers are accessible to programmer through the corresponding sfr registers. The main three function of counters are: 1. Producing a delay for a definite time. 2. Counting the transitions on an external pin. 3. Generating baud rates for the serial port.
Ambaye tadesse said:
1 decade ago
These are the PC and DPTR, each is used to hold the address of a byte in a memory.
PC: holds the memory address of the next instruction. It gets incremented after every instruction.
DPTR: is made up of two 8 bit registers named DPH and DPL. It is used in operations regarding external RAM mostly.
PC: holds the memory address of the next instruction. It gets incremented after every instruction.
DPTR: is made up of two 8 bit registers named DPH and DPL. It is used in operations regarding external RAM mostly.
Rajesh tupakula said:
1 decade ago
8051 has 40 pins, it is also called as DIP (dual inline package) because the chip contains one side 20 pins another side 20 pins that's it is called as DIP, with four ports P0, P1, P2, P3 and it has two 16 bit registers PC & DPTR.
Suresh vabanagiri said:
1 decade ago
The micro-controller has two 16 bit registers i.e. program counter and the data pointer.the 8051 has 40 pins,in which 32 i/o pins and 8 are the non mask able pins.
Rajasekhar said:
1 decade ago
8051-MC has 40 pins with 4 digital i/o ports, power supply, GND, 2 timers (T0, T1 in basic microcontroller) &2 external interrupts.
Jitendra kumar rout said:
1 decade ago
MC has two 16-bit register (PC AND DPTR) with 40-pin's and 4 port's p0, p1, p2 and p3 respectively.
Balaji said:
1 decade ago
Once the program dumped into the 8051 and removed from the kit does it retain the program.
Deepthi said:
1 decade ago
It has 40 pins. PC and DPTR are the 16 bit registers. It has 2 timers-T1 and T2.
Pratyu said:
1 decade ago
I want to know the pin configuration of 8051 mc. i.e., how many pins it has.
Narasimman raja said:
1 decade ago
The 8051 have 40 pin IC. It has 4 port. It also has 2 timer is available.
(1)
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers