Serial peripheral interface (spi) circuit and display using the same

A display device, comprising:

• a display panel;
• a driving circuit, coupled to the display panel, for receiving a display data signal and transferring the display data signal to the display panel, wherein the driving circuit comprises:
• a first serial peripheral interface, comprising:
• a first chip enable pin;
• a first serial clock pin;
• and
• a data input/output pin;
• and
• a serial storage device, comprising:
• a second serial peripheral interface, comprising:
• a second chip enable pin, electrically connected to the first chip enable pin;
• a second serial clock pin, electrically connected to the first serial clock pin;
• a serial data input pin, electrically connected to the data input/output pin;
• and
• a serial data output pin, electrically connected to the data input/output pin;
• wherein when a read instruction is transferred from the driving circuit to the serial storage device, the driving circuit is set in a read status and the serial storage device outputs data to the driving circuit via the serial data output pin in response to the read instruction, and when a write instruction is transferred from the driving circuit to the serial storage device, the driving circuit is set in a write status and the driving circuit transfers data to the serial storage device for storing therein via the serial data input pin in response to the write instruction.