UART is a parallel input to a serial output chip, usually integrated on the motherboard. UART contains TTL level serial port and RS232 level serial port. Is 3.3 V TTL level, while the RS232 is negative logic level, it defines + 5 ~ + 12 V as the low level, and 12 ~ - 5 V ...
In the embedded system, I2C and SPI both play an important role. Both communication protocols are the example of synchronous communication but still, both have some important differences. In the below table, I have pointed out some common differences between SPI and I2C ( SPI vs I2C ). The ...
MAC/PHY, and PoE circuitry. Engineers configure locking headers for peripheral buses such as RS232, GPIO, SPI, and I2C, while transceivers on the UART lines
This page compares SPI vs QSPI and mentions difference between SPI and QSPI in tabular format.It provides difference between SPI and QSPI based on various factors such as interface diagram,data rate,distance,advantages,disadvanatages etc.