Block
Mask
Description
This block is used to synchronize serial data to perform a rate transition. The block includes a Dual-Port-RAM-based triple buffer. The data is written into a double buffer pattern and read from the last fully received buffer upon the reception of the transmission trigger signal.
Parameters
| Reception interface type | Determines the reception interface type. |
|---|---|
| Provide data count output | When selected, the number of data received in the preceding frame is added as an output of the block. |
Inputs
| RX Data | The data to be re-sampled. |
|---|---|
| RX Valid | The data is recorded in an internal buffer when the valid input is active (different from zero). This signal should be a 1-bit integer or boolean signal. |
| RX Start | A flag to reset the internal buffer (when this input is different from zero). This signal should be a 1-bit integer or boolean signal and is available only if the reception interface includes such signal. |
| RX Last | A flag to identify the last data of a frame (when this input is different from zero). This signal should be a 1-bit integer or boolean signal and is available only if the reception interface includes such signal. |
| TX Ready | Used to indicate that the transmission serial link is ready. This signal should be a 1-bit integer or boolean signal. |
| TX Start (trig) | The transmission trigger. The parallel input is buffered when this signal is non-zero and then sent serially when the link is ready. This signal should be a 1-bit integer or boolean signal. |
Outputs
| TX Data | The re-sampled data (serial). |
|---|---|
| TX Valid | This signal indicates that the current serial data output is valid data from a frame. |
| TX Last | A flag indicating the currently valid data is the last one of the frame. |
| TX NbData | This output is visible only if the corresponding option is selected, It is the number of data received in the preceding frame. |
Characteristics and Limitations
This block has no special characteristics.
| Direct Feedthrough | N/A |
|---|---|
| Discrete sample time | N/A |
| XHP support | N/A |
| Work offline | YES |