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# hololink::emulation::DPRegisters

> Per-data-plane register slice. One instance per unique data_plane_id, shared by every DataPlane instance with that id. Holds the hif_data registers (DP_PACKET_SIZE, DP_PACKET_UDP_PORT, DP_VP_MASK) the host writes once per physical data plane.

Per-data-plane register slice. One instance per unique data_plane_id, shared by every [DataPlane](/holoscan/sensor-bridge/2-7/api-reference/emulation-api/classes/dataplane) instance with that id. Holds the hif_data registers (DP_PACKET_SIZE, DP_PACKET_UDP_PORT, DP_VP_MASK) the host writes once per physical data plane.

```cpp showLineNumbers={false}
#include <hololink/emulation/data_plane.hpp>
```

---

## Member variables

| Name          | Type       | Description |
| ------------- | ---------- | ----------- |
| `hif_data`    | `uint32_t` |             |
| `hif_address` | `uint32_t` |             |