Wireless device control circuit with identical modularized internal circuit architecture for different processing, and associated wireless communications device

A wireless device control circuit with modularized internal circuit architecture, for performing communications control within a wireless communications device, the wireless device control circuit comprising:

• a first digital processing circuit, arranged to perform first digital processing corresponding to a first predetermined radio frequency band for the wireless communications device, wherein the first digital processing comprises common processing and a first additional processing;
• and a second digital processing circuit, arranged to perform second digital processing corresponding to a second predetermined radio frequency band for the wireless communications device, wherein the second digital processing comprises the common processing and a second additional processing;
• wherein the first digital processing circuit comprising:
• multiple first partial circuits, wherein two first partial circuits among the multiple first partial circuits are capable of performing the first additional processing and the second additional processing, respectively;
• and at least one first selection circuit, coupled to the multiple first partial circuits, arranged to select one of the two first partial circuits according to a first predetermined configuration, for performing the first additional processing;
• and wherein the first digital processing circuit and the second digital processing circuit are identical to each other, and are arranged to perform the first digital processing and the second digital processing according to the first predetermined configuration and a second predetermined configuration, respectively.