Patent ID: 6016559
Filing Date: 2000-01-18
Classification: G06F

Abstract:
A multifunctional integrated electronic product, comprising:a main microcomputer having at least one input/output port for receiving and sending data, said main microcomputer generating a control data signal to control an external device;a data bus having one end coupled to said input/output port of said main microcomputer and a second end; anda sub microcomputer having at least one input/output port connected to said second end of said data bus and receiving said control data signal from said main microcomputer, said sub microcomputer determining the presence of an error in said control data signal and transmitting a data receipt confirmation signal to said main microcomputer when no error is detected, and transmitting a data error generating signal to said main microcomputer when an error is detected, said sub microcomputer transmitting one of said confirmation signal and said data error generating signal without receiving a request for either of said signals from said main microcomputer, wherein said main microcomputer transmits following data when no errors are present in the control data signal.