Data transmission circuit

A data transmission circuit, comprising:

• a first drive circuit configured to drive first data that transitions or does not transition in synchronization with a clock signal, wherein
• the first drive circuit includes a plurality of drivers;
• a second drive circuit configured to drive second data that transitions at a timing at which the first data does not transition in synchronization with the clock signal, wherein
• the second drive circuit includes a plurality of drivers;
• and
• an operation state control circuit configured to:
• individually control an operation state of the first drive circuit and an operation state of the second drive circuit-circuits;
• control the operation state of the second drive circuit,
• wherein the operation state of the second drive circuit is controlled based on a number of operating drivers among the plurality of drivers of the second drive circuit;
• generate a first control signal and a second control signal, wherein
• the first control signal indicates presence or absence of a first operation, based on a first bit pattern, for each of the plurality of drivers of the first drive circuit,
• the second control signal indicates presence or absence of a second operation, based on a second bit pattern, for each of the plurality of drivers of the second drive circuit, and
• the second control signal is based on a bit-shifting operation, of at least a part of the first bit pattern of the first control signal, in a specific direction.