This post covers properties of LTI system. Linear-time invariant systems, that were partially discussed before, play an important role in describing signals. Generally speaking,…
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Boolean logic. Truth tables for logic expressions.
Digital circuits implement logic using "if-statements". The simplest logic operations are AND, OR, NOT. AND operation is represented with "*", OR operation - with symbol "+", NOT operation - with…
Embedded processors and architecture models
This post is about embedded processor architecture models and characteristics, operations, operands, programmable storage, and interrupts. Embedded processors can be combined in a groups,…
Embedded CPU and memory
An embedded processor consists of CPU, memory, I/O, and busses. There are two models that describe CPU operation – von Neumann and Harvard architecture…
Processor I/O introduction
This post is about processor input and output. Processor input and output units are responsible for moving in and out information to and from…
What is memory management
This post answers the question "What is memory management?". Memory manager is an integrated circuit that helps to resolve issues related to the way…
Write-through and write-back data cache policy
This post answers shows the difference between write-through vs write-back data cache policy. Data cache operates in two modes: write-through; write-back. In case of…
How memory spaces are constructed
This post is about how memory spaces are constructed. Embedded processors are characterised with hierarchical memory architectures, combining different sizes and performance memory. Memory…
L1 Instruction and data memory and why cache memory is important
This post tells about L1 instruction memory and data cache memory. The instructions in the processor may range in size in order to achieve…
Synchronous DRAM memory and SDRAM controller
Synchronous DRAM memory is the highest performance external memory, that allows to store large amounts of data without losing performance. SDRAM also stands for…