ECE 09241 Lecture Notes - Clock Signal, Frequency Divider

• School: Rowan University
• Department: Electrical and Computer Engineering
• Course: ECE 09241

Document Summary

Intro to digital systems course notes: lecture 10. An fsm has single-bit inputs and outputs. Sometimes a sequential system has multibit data input and output, such as a system with 8-bit data input d. An extended fsm allows defining data inputs and outputs, and allows actions that assign a data output with an arithmetic expression, like t = d + 5. A multi-bit wire is typically drawn as a single wire with a slash (/), as above. The above extended fsm implements the common functionality of "toggling" between two situations, in this case assigning t with either d or with d + 5 (implementing for example a sound "boost" button on a music amplifier). A high-level state machine is a form of extended fsm that supports multi-bit data input/output and data operations. Hlsm is short for high-level state machine. Some hlsms use notation from the c programming language to avoid confusion between arithmetic and boolean operations.