US 12,182,057 B2 · Inter integrated circuit-based communication method and apparatus

Abstract

An inter integrated circuit (I2C)-based communication method incudes when an I2C signal is encapsulated into a data packet for transparent transmission, an I2C status is indicated by a first field in a packet header of the data packet. The data packet may have no load part, or the data packet has a load part but the load part is used to carry a slave address, a read/write flag, or I2C data. Because the I2C status is indicated in the packet header of the data packet, the I2C status may be encapsulated in a same data packet together with the slave address, the read/write flag, or the I2C data. In other words, the I2C status may not need to occupy one data packet separately.

Claims30

Dependent claims

A communication method implemented by a first device, wherein the communication method comprises:

generating a data packet comprising a packet header and a load, wherein the packet header comprises a first field indicating an inter integrated circuit (I2C) status and a third field comprising a fourth field and a fifth field, wherein the third field indicates that the data packet is an I2C-based data packet when the fourth field indicates that an encapsulation service type of the data packet is a control service and the fifth field indicates that a data format of the data packet is I2C data, wherein the I2C status is start of data transmission, continuation of the data transmission, stop of the data transmission, an acknowledgment (ACK), or a negative acknowledgment (NACK), and wherein a length of the load is greater than or equal to 0 bits;
and
sending the data packet to a second device.

A communication method implemented by a second device, wherein the communication method comprises:

receiving, from a first device, a data packet comprising a packet header and a load, wherein the packet header comprises a first field indicating an inter integrated circuit (I2C) status and a third field comprising a fourth field and a fifth field, wherein the third field indicates that the data packet is an I2C-based data packet when the fourth field indicates that an encapsulation service type of the data packet is a control service and the fifth field indicates that a data format of the data packet is I2C data, wherein the I2C status is start of data transmission, continuation of the data transmission, stop of the data transmission, an acknowledgment (ACK), or a negative acknowledgment (NACK), and wherein a length of the load is greater than or equal to 0 bits;
and
determining the I2C status based on the first field.

A communication apparatus, comprising:

a memory configured to store instructions;
and
a processor coupled to the memory and configured to:
receive a data packet from a first device, wherein the data packet comprises a packet header and a load, wherein the packet header comprises a first field indicating an I2C status and a third field comprising a fourth field and a fifth field, wherein the third field indicates that the data packet is an I2C-based data packet when the fourth field indicates that an encapsulation service type of the data packet is a control service and the fifth field indicates that a data format of the data packet is I2C data, wherein the I2C status is start of data transmission, continuation of the data transmission, stop of the data transmission, an acknowledgment (ACK), or a negative acknowledgment (NACK), and wherein a length of the load is greater than or equal to 0 bits;
and
determine the I2C status based on the first field.

3 more elements

Dependencies are inferred from the claim text.

Inter integrated circuit-based communication method and apparatus

Life of this patent

Inter integrated circuit-based communication method and apparatus

Life of this patent

Abstract

Claims30