Peripheral interface and method for data transmission, in particular for laser scanning microscope

Known peripheral interface for laser scanning microscopes generate on the side of the control computer a high operating cost in the form of a short reaction time of the driver software, with frequent interrupt requests. Responds the driver software is too slow, no consistent control data stream is concluded or incoming data is lost. The invention is intended to enable seamless data transmission with high transmission rate under low expense, especially in a non-real time operating system of the control computer. In the peripheral interface (4) comprising a computer connector for a system (8) of a control computer (1), a peripheral port for a peripheral device (10) and a control unit (11) which for unidirectional transmission of a predetermined number of data from the control computer (1 ) (to the peripheral device 10) and / or vice versa (via the system bus 8) to a their predetermined working memory area of ​​the control computer (1), the accesses as a buffer (16, 17) is used, the control unit (11) the control computer (1) a progress of the transmission ready for retrieval, said control unit (11) by the control computer (1), a progress of the processing of the buffer regardless of the transmission is communicated, taking into account the progress of the processing at the access to the buffer. Connection of a laser scanning microscope to a control computer.