Design of UART Controller with Receiver Wake-up Operation
UART is a communication peripheral on MCU chips.As MCU chips are widely used in handheld devices and wearable devices,support for low power becomes increasingly critical for MCU chips.To meet the low-power de-mands,traditional UART typically reduces power consumption by optimizing circuit structure and algorithms to minimize power consumption during data transmission.One common technique is to utilize low-power charge pump technology,which adjusts the supply voltage to a low working voltage to reduce power consumption.This paper describes a UART controller circuit with receiver wakeup operation,using sleep mode to reduce circuit power consumption.Experimental veri-fication shows that the UART receiver in sleep mode automatically wakes up under certain conditions and then receives data normally,thus reducing power consumption,and can be widely used in multi-machine communication.
NETL
NSTL
万方数据
