Terminal

[0062] Among multiple CPUs for processing private data / non-private data, a certain CPU acts as a “relay” with the external device 102 , while other CPUs realize interaction with the external device 102 through the “relay”.

[0063] Specifically, such as image 3 As shown, it is assumed that a connection is established between CPU1 and the external device 102, and other multiple CPUs for processing private data are connected with CPU1 in a "serial" manner; at the same time, it is assumed that a connection is established between CPU2 and the external device 102, Other multiple CPUs for processing non-private data are connected with CPU2 in a "parallel" manner.

[0064] For the "serial" mode: when CPU1 needs to interact with external device 102, CPU1 directly performs data interaction with external device 102; when CPU1A needs to interact with external device 102, CPU1 performs data forwarding; when CPU1B needs to communicate with external When the device 102 interacts, CPU1A and

[0070] Among multiple CPUs for processing private data / non-private data, each CPU is "parallel connected" to the external device 102, and directly interacts with the external device 102 without requiring other CPUs as "relays".

[0071] Specifically, such as Figure 4 As shown, CPU1, CPU1A, and CPU1B for processing private data are respectively connected to the external device 102, while CPU2, CPU2A, and CPU2B for processing non-private data are also respectively connected to the external device 102.

[0072] At the same time, the "serial" and / or "parallel" methods mentioned in the above text can be used among multiple CPUs with the same processing function. As a specific example, Figure 4 It shows that: CPU1, CPU1A, CPU1B for processing private data adopts "serial connection" mode, while CPU2, CPU2A, CPU2B for processing non-private data adopts "parallel connection" mode.

[0073] When each CPU is connected to the external device 102, a CPU for one processing function may