Communication method of tpm, tpm, board, and device

A trusted platform module (TPM), comprising:

• a TPM logic circuit;
• a receive buffer;
• a TPM register;
• and
• one or more processors, wherein the TPM register is a storage space obtained by dividing a memory of the TPM,
• wherein the TPM logic circuit is configured to:
• receive a TPM register write command from a host, and store a payload of the TPM register write command into the receive buffer, wherein the payload of the TPM register write command is a part or all of content forming TPM command data;
• when data stored in the receive buffer reaches a first data amount threshold, the one or more processors are configured to dump, into the TPM register, the data stored in the receive buffer;
• and
• when all the content of the TPM command data is stored in the TPM register, the one or more processors are further configured to execute a task indicated by the TPM command data.

A board, comprising:

• a central processing unit (CPU);
• and
• a trusted platform module (TPM), wherein the CPU is configured to send a register write command to the TPM, wherein the TPM comprises a TPM logic circuit, a receive buffer, a TPM register, and one or more processors, and the TPM register is a storage space obtained by dividing a memory of the TPM,
• wherein the TPM logic circuit is configured to:
• receive a TPM register write command from a host, and store a payload of the TPM register write command into the receive buffer, wherein the payload of the TPM register write command is a part or all of content forming TPM command data,
• wherein when data stored in the receive buffer reaches a first data amount threshold, the one or more processors are configured to dump, into the TPM register, the data stored in the receive buffer, and
• wherein when all the content of the TPM command data is stored in the TPM register, the one or more processors are further configured to execute a task indicated by the TPM command data.