Credit Card Numbers - Visa. These Credit card numbers validate for Visa credit cards. The number and information is as real as it can be, and contains valid bin information. The structure of the credit card number starts with a valid bin number and also validates against the LUHN's formula.
UART is a protocol (Universal asynchronous receiver/transmitter ) for serial transfer of information. You ask about an embedded system with mentioning which so I'll assume that you have a block diagram with one indicating UART.
Some of the common uses of flowcharts include: Once the use of the flowchart is known, the next step is to select the best type of diagram to represent it. This could be a basic flowchart, a swimlane flowchart, a value stream map, or any of several other types.