Patent ID: 6909307

Claim:
A bidirectional bus driver which receives a first control signal and a data signal, and has a function of transferring a signal between a first bus and a second bus and a function of driving said first bus and said second bus; said bidirectional bus driver comprising: a first buffer which supplies said data signal to said second bus when said first control signal is enabled; a second buffer which supplies said data signal to said first bus when said first control signal is enabled; a first control circuit which generates a second control signal; a second control circuit which generates a third control signal; a third buffer which supplies a signal in said second bus to said first bus when said second control signal is enabled; and a fourth buffer which supplies a signal in said first bus to said second bus when said third control signal is enabled; said first control circuit enabling said second control signal for a certain period of time when a signal transition is detected in said second bus while said first control signal is not enabled; and said second control circuit enabling said third control signal for a certain period of time when a signal transition is detected in said first bus while said first control signal is not enabled.