What does Movwf mean?
MOVWF Instruction:- The MOVWF instruction tells the CPU to move, in reality copy, the source register of WREG to a destination in the file register (F). After this instruction is executed, the location in the file register will have the same value as register WREG.
What does Movlw mean?
Move Literal Value Into W
The MOVLW means ‘Move Literal Value Into W’, which in English means put the value that follows directly into the W register.
What are the pic16c6x microcontroller core features?
ing speed: DC – 20 MHz clock input DC – 200 ns instruction cycle • Interrupt capability • Eight level deep hardwar e stack • Direct, indirect, and relat ive addressing modes • Power-on Reset (POR) • Power-up Timer (PWRT) and Os cillator Start-up Timer (OST) • Watch dog Timer (WDT) with its own on-chip RC oscillator for …
What is Movf instruction?
The MOVF instruction is widely used to bring data from I/O ports such as Port B into the CPU. We also use the MOVF instruction to bring data into WREG from any special function registers from any location in the Generam Purpose RAM in order to perform arithmetic and operations on them.
What is the binary code for the Movf instruction?
In the MOVF instruction the operation code is 001000, and the file register address is needed as before to identify the data source register. Bit 7 (d) controls the data destination.
What is the purpose of the Trisa and Trisb in the pic16f84a microcontroller?
The most common registers in Bank 1 we are going to use are STATUS, TRISA and TRISB. The first allows us to come back to Bank 0, TRISA allows us to select which pins on Port A are output and which are input, TRISB allows us to select which pins on Port B are output and which are input.
What is the role of TRISx register in I O port management?
The TRISx register control bits determine whether each pin associated with the I/O port is an input or an output. If the TRIS bit for an I/O pin is a ‘1’, then the pin is an input. If the TRIS bit for an I/O pin is a ‘0’, then the pin is configured for an output.
What are the features of Timer 1?
The Timer1 has the following features:
- 16-bit timer/counter register pair;
- Programmable internal or external clock source;
- 3-bit prescaler;
- Optional Low Power (LP) oscillator;
- Synchronous or asynchronous operation;
- Timer1 gate control (count enabled) via comparator or the T1G pin;
- Interrupt on overflow;
What is BSF and BCF?
BCF — Bit Clear f. BSF — Bit Set f. BTFSC — Bit Test f, Skip if Clear.
What is BCF Assembly?
BCF is a resetting command instruction used for performing reset operations for a specified bit or specified register (simply called bit clearing flag or bit clearing command). Normally BCF resets the specified bit in f registers content.
What is MOV in binary?
The “mov” command lets you put a value from one location to another one. It does not really “move” the value, it just copies it to another place.
What do you call an instruction set architecture?
An instruction set architecture (ISA) is an abstract model of a computer. It is also referred to as architecture or computer architecture. A realization of an ISA is called an implementation.
What does it mean when a CPU has an instruction set?
The term can refer to all possible instructions for a CPU or a subset of instructions to enhance its performance in certain situations. All CPUs have instruction sets that enable commands to the processor directing the CPU to switch the relevant transistors.
What kind of instructions are in a RISC instruction set?
RISC instruction sets generally do not include ALU operations with memory operands, or instructions to move large blocks of memory, but most RISC instruction sets include SIMD or vector instructions that perform the same arithmetic operation on multiple pieces of data at the same time.
What are the instructions in a CISC processor?
Some instructions are simple read, write and move commands that direct data to different hardware. In CISC (Complex Instruction Set Computer) processors there is also a microcode layer, which involves programmable instructions stored in fast memory that may be updated.