Driving circuit, integrated circuit, and liquid discharge apparatus

An integrated circuit including a driving circuit that drives a discharge head which includes a piezoelectric element driven by receiving a first voltage signal and which discharges a liquid by driving the piezoelectric element, the integrated circuit comprising:

• an amplification control signal generation circuit;
• an output control circuit;
• and
• a first register, wherein
• the amplification control signal generation circuit generates an amplification control signal which is a basis of the first voltage signal based on a drive data that defines a signal waveform of the first voltage signal input from an input terminal,
• the first register holds an operating state data input from the input terminal,
• the output control circuit controls an output of the driving circuit based on the operating state data,
• the integrated circuit includes a second register that holds an abnormality detection data for determining the presence or absence of an abnormality in the operating state data held by the first register, and
• the second register is provided at the same address as the first register.

A liquid discharge apparatus comprising:

• a discharge head that includes a piezoelectric element driven by receiving a first voltage signal and that discharges a liquid by driving the piezoelectric element;
• and
• a driving circuit for driving the discharge head, wherein
• the driving circuit includes
• a first voltage signal output circuit that outputs the first voltage signal by operating based on an amplification control signal, and
• an integrated circuit that outputs the amplification control signal,
• the integrated circuit includes
• an amplification control signal generation circuit,
• an output control circuit, and
• a first register,
• the amplification control signal generation circuit generates the amplification control signal based on a drive data that defines a signal waveform of the first voltage signal input from an input terminal,
• the first register holds an operating state data that defines the operating state of the driving circuit input from the input terminal,
• the output control circuit controls an output of the driving circuit based on the operating state data,
• the integrated circuit includes a second register that holds an abnormality detection data for determining the presence or absence of an abnormality in the operating state data held by the first register, and
• the second register is provided at the same address as the first register.