The basics of the micro architecture include:

1. Fetch the next instruction to be executed from memory

3. Read operands from main memory or registers

4. Execute the instruction and store results

The data path for the ARC contains 32 user-visible data registers, the program counter, the instruction register, the ALU, four temporary registers not visible at the ISA level, and the connections among these components. The number adjacent to a diagonal slash on some of the lines is a simplification that indicated the number of separate wires that are represented by the corresponding single line.

ALU - Abbreviation of arithmetic logic unit, the part of a computer that performs all arithmetic computations

Switches - 1) In networks, a device that filters and forwards packets between LAN segments. Switches operate at the data link layer (layer 2) of the OSI Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs.

A signal informing a program that an event has occurred. When a program receives an interrupt signal, it takes a specified action (which can be to ignore the signal). Interrupt signals can cause a program to suspend itself temporarily to service the interrupt.

Interrupt signals can come from a variety of sources. For example, every keystroke generates an interrupt signal. Interrupts can also be generated by other devices, such as a printer, to indicate that some event has occurred. These are called hardware interrupts. Interrupt signals initiated by programs are called software interrupts. A software interrupt is also called a trap or an exception.

Some topics in this essay:
Ethernet LANs, Traps Interrupts, Computer Architecture, Nano Programming, ALU Abbreviation, Reference Model, LANs Ethernet, micro architecture, data registers, interrupt signals, control unit, event occurred, interrupt signal, edge clock, 32 bits,