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What is serial communication in microcontroller?
Serial communication (also called RS232 communication) enables a microcontroller to be connected to another microcontroller or to a PC using a serial cable. Some microcontrollers have built-in hardware called universal synchronous–asynchronous receiver–Transmitter (UART) to implement a serial communication interface.
What is the AT89S52 microcontroller?
The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash memory. The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the indus- try-standard 80C51 instruction set and pinout.
Is 8051 same as AT89S52?
The Atmel AT89S52 is an 8051 based Full Static CMOS controller with Three-Level Program Memory Lock, 32 I/O lines, 3 Timers/Counters, 8 Interrupts Sources, Watchdog Timer, 2 DPTRs, 8K Flash Memory, 256 Bytes On-chip RAM. Micromint, Inc.
What is the difference between a microprocessor and microcontroller?
Microprocessor consists of only a Central Processing Unit, whereas Micro Controller contains a CPU, Memory, I/O all integrated into one chip. The microprocessor uses an external bus to interface to RAM, ROM, and other peripherals, on the other hand, Microcontroller uses an internal controlling bus.
How many interrupts are there in AT89S52?
The AT89S52 provides the following standard features: 8K bytes of Flash, 256 bytes of RAM, 32 I/O lines, Watchdog timer, two data pointers, three 16-bit timer/counters, a six-vector two-level interrupt architecture, a full duplex serial port, on-chip oscillator, and clock circuitry.
What is difference between Intel 8051 and Atmel?
Micro-controllers are from Intel company. Micro-controllers are from Atmel comapny. 8051 micro-controller uses CISC Instruction Set Architecture. AVR micro-controller uses RISC Instruction Set Architecture.