WebFeatures of 8051 Microcontroller. 8-bit CPU microcontroller, means MC 8051 can Read, Write and Process 8 bit data. 16-bit Program Counter. 8-bit Program Status Word (PSW). 8-bit Stack Pointer. 128 bytes on-chip data memory (RAM) Special Function Registers (SFRs) of 128 bytes. 32 I/O pins arranged as four 8-bit ports (P0 - P3) WebApr 6, 2024 · The PSW or Program Status Word Register is also called as Flag Register and is one of the important SFRs. The PSW Register consists of Flag Bits, which help the …
Documentation – Arm Developer
WebThe 8051 microcontroller is an 8-bit microcontroller. Let us see the major components of 8051 microcontroller and their functions. An 8051 microcontroller has the following 12 major components: 1. ALU (Arithmetic and Logic Unit) 2. PC (Program Counter) 3. Registers 4. Timers and counters 5. Internal RAM and ROM 6. WebFeb 27, 2024 · 8051 is one of the first and most popular microcontrollers also known as MCS-51. Intel introduced it in the year 1981. Initially, it came out as an N-type metal-oxide-semiconductor (NMOS) based microcontroller, but later versions were based on complementary metal-oxide-semiconductor (CMOS) technology. doton jutsu naruto
Internal Architecture of 8051 - IIT Bombay
WebThe Program Status Word or PSW resides at address D0H. It contains flags etc. Pointer registers DPH and DPL reside at locations 83H and 82H respectively. Taken together, … WebProgram Status Word or PSW is a hardware register which is a memory location which holds a program's information and also monitors the status of the program this is currently … WebThe flag register in the 8051 is called the program status word (PSW) register. In this section we discuss various bits of this register and provide some examples of how it is altered. … doton plaza