WebSERIAL PORT CONTROL REGISTER (SCON) OF 8051/8031 MICROCONTROLLER • The format of SCON register is shown. • Mode 0: o In this mode the serial port function as … WebFeb 14, 2024 · Non-Maskable Interrupt : An interrupt that cannot be disabled or ignored by the instructions of CPU are called as Non-Maskable Interrupt.A Non-maskable interrupt is often used when response time is critical or when an interrupt should never be disable during normal system operation.
SPI communication Protocol Introduction and Basics
WebJun 24, 2024 · Program Status Word Register of 8051 Microcontroller PSW June 24, 2024 : Share Program Status Word (PSW) The PSW is an 8-bit register, its SFR memory location of D0H. PSW register is also called as Flag Register. 4 Arithmetic Flags (Carry, Auxiliary Carry, Overflow, Parity) 2 Register Select bits (RS0 and RS1) 2 User defined flags. WebFeb 22, 2024 · The CPU ceaselessly check every and each device hooked up thereto for sleuthing whether or not any device desires hardware attention. Each device features a command-ready bit that indicates the standing of that device, i.e., whether or not it’s some command to be read by hardware or not. robert kugler coach
What is a Microcontroller and How Does it Work? - IoT Agenda
Web8051 has 5 interrupt signals, i.e. INT0, TFO, INT1, TF1, RI/TI. Each interrupt can be enabled or disabled by setting bits of the IE register and the whole interrupt system can … WebThe 8051 microcontroller is the CISC based Harvard architecture, and it has peripherals like 32 I/O, timers/counters, serial communication and memories. The microcontroller requires a program to perform the … WebThe low signal at this pin shows that operation is performing over memory location. As against, a high signal at this pin represents the operation at I/O device. S 0 and S 1 – The pins S 0 and S 1 represent the status signal … robert kruckemeyer attorney at law