US 2022/0276304 A1 · INTERFACE SYSTEM FOR INTERCONNECTED DIE AND MPU AND COMMUNICATION METHOD THEREOF

Abstract

The invention discloses an interface system for an interconnected die and an MPU and a communication method thereof. The system comprises a data interface, an interrupt interface, and a debugging interface; the data interface comprises an SPI interface, a DDR data interface, and a DMA control interface; the interrupt interface is used for receiving an interrupt data packet from the network and parsing the interrupt data packet to obtain a pulse interrupt input required by the MPU; the debugging interface comprises a JTAG-Core debugging interface, which is used for receiving a debugging data packet from the network and translating the debugging data packet into a JTAG protocol for MPU debugging. The invention realizes the expansion of the master device MPU in the high-performance information processing microsystem and the high-speed communication between the master device and the interconnected dies.

Claims9

Dependent claims

An interface system for an interconnected die and an MPU, comprising a data interface, an interrupt interface, and a debugging interface;

the data interface comprises an SPI interface, a DDR data interface, and a DMA control interface;
the SPI interface is used for autonomous startup of the MPU during the startup phase, and the DMA control interface is used for DMA startup and end control;
the interrupt interface is used for receiving an interrupt data packet from the network and parsing the interrupt data packet to obtain a pulse interrupt input required by the MPU, and meanwhile, the interrupt interface receives an interrupt address operation from the data interface and converts the interrupt address operation into an interrupt event to be sent out;
the debugging interface comprises a JTAG-Core debugging interface, which is used for receiving a debugging data packet from the network and translating the debugging data packet into a JTAG protocol for MPU debugging.

1 more element

A communication method of an interconnected die and an MPU, wherein a data transmission is carried out between the interconnected die and the MPU through the data interface, an interrupt transmission is carried out through the interrupt interface, and an MPU debugging is carried out through the debugging interface;

the MPU controls data access between slave devices through the DMA control interface;
the data interface comprises an SPI interface, a DDR data interface, and a DMA control interface;
the debugging interface comprises a JTAG-Core debugging interface.

Dependencies are inferred from the claim text.

Interface system for interconnected die and mpu and communication method thereof

Life of this patent

Interface system for interconnected die and mpu and communication method thereof

Life of this patent

Abstract

Claims9