Abstract: An anti-fuse memory cell and a data read-write circuit thereof. The anti-fuse memory cell comprises a base, the base is provided with an N-well and a non-N-well region; the non-N-well region is provided with a first NMOS transistor; a gate of the first NMOS transistor is used for inputting a first selection signal; the N-well is provided with a PMOS transistor and a varactor; a gate of the PMOS transistor and a gate of the varactor are both connected to a drain of the first NMOS transistor; and a drain, a source and a substrate of the PMOS transistor and a drain, a source, and a substrate of the varactor are all connected to a controllable power supply.

Abstract: A interrupt control system and method based on RISC-V comprises a processor, a fast interrupt controller, a Caller-save type general-purpose register, and a hardware memory area; the hardware memory area is used for storing a value of the Caller-save type general-purpose register during an interrupt response; and the fast interrupt controller is used for storing the value of the Caller-save type general-purpose register into the hardware memory area, or loading back a content from the hardware memory area into the Caller-save type general-purpose register, and further storing a value of a control and status register set into the hardware memory area when a nested interrupt occurs; which improve an interrupt handling speed of a RISC-V architecture processor, simplify the program development difficulty, expand an application field of the RISC-V as a core single chip microcomputer, and particularly have a wide prospect in the embedded application field.

Abstract: An USB multiplexing single-wire interface unit comprises a D+ pin, a D? pin, a control bit register for USB and single-wire interface modes and a USB controller, the USB controller comprises an EOP detection module and a single-wire interface EOP detection module. The USB mode or the single-wire interface mode is selected according to mode identification of the control bit register for USB and single-wire interface modes, an output of the EOP detection module is selected as a USB EOP trigger signal in the USB mode, and an output of the single-wire interface EOP detection module is selected as a USB EOP trigger signal in the single-wire interface mode.

Abstract: A decoding implementation method of a Bluetooth receiver includes: setting a first length threshold and a second length threshold; decoding and backtracking a first FEC block, and outputting a coded indicator and an access address of the first FEC block; determining whether a second FEC block needs despreading according to the coded indicator; matching the access address with an actual address, storing a survivor-path of the second FEC block in a SMU, decoding and backtracking the data stored in the SMU, outputting bit information, and taking out a length of a packet payload in a packet header from a time; and judging whether a total number of bits of the second FEC block exceeds the second length threshold according to the length of the packet payload to complete decoding.