What are the parts of instruction?

What are the parts of instruction?

17. Instruction Components

• Instruction in memory has two parts: opcode and operands.
• The opcode identifies the operation that instruction does.
• The operands are subjects of the operation, such as data values, registers, or memory addresses.

What are the three basic categories of instruction set of pic16f series microcontroller?

The instruction set is highly orthogonal and is grouped into three basic categories: Byte-oriented operations • Bit-oriented operations • Literal and control operations Table 29-2 gives the opcode field descriptions.

How many pins does the PIC16F84 microcontroller have?

Calls can be nested only eight deep. There is no push or pop instruction to access the stack directly. There are four other flow instructions , ( beside CALL and GOTO ), which might be called ‘skip it’ instructions: The 16F84 has 13 pins that can be individually configured as either inputs or outputs.

Are there two busses for the PIC microcontroller?

The PIC chips have two separate ‘data’ busses, one for instructions and one for everything else. Instructions are essentially in ROM and dedicate the microcontroller to doing one task.

Is the PIC16F84A data sheet a refer-ence manual?

The Refer- ence Manual should be considered a complementary document to this data sheet, and is highly recom- mended reading for a better understanding of the device architecture and operation of the peripheral modules. The PIC16F84A belongs to the mid-range family of the PICmicro® microcontroller devices.

What kind of memory does a PIC microcontroller have?

PIC16F84A Memory: This PIC microcontroller comes with enhanced EEPROM memory. It contains 64 bytes memory that is mainly used to store data and 1K program memory specifies the capacity of code you can burn inside. 68 bytes of RAM (Data Memory). Watchdog timer: This microcontroller has built-in Watchdog timer.