| 摘要 |
In an arrangement for serial data transmission between a first data processing unit (2), arranged for sending parallel data, and a second data processing unit (4), arranged for receiving parallel data, the parallel data is converted to serial form and is then converted back to parallel form, a status signal being transmitted from the second data processing unit (4) to the first data processing unit (2) and indicating whether the said second data processing unit (4) is in data-receive status or not. The data transmission arrangement comprises a first interface unit (6) which is arranged for converting parallel data to serial data and for control signal transmission, and a second interface unit (8) which can be connected to the second data processing unit (4) and which is arranged for converting serial data to parallel data and for control signal transmission. The two said interface units (6) and (8) can be connected to one another by means of a signal transmission member (22) arranged for transmitting data signals and control signals. The status signal can be transmitted in real time to a data processor in the first data processing unit (2), the transmission of data being adapted according to the status of the second data processing unit (4). |
