# Properties of ref Field

The **\<ref>** field has all the [common](fields) properties as well as ones listed below. Refer to [\<ref> Field](../fields/bitfield) chapter for detailed description.

| Property Name |    Allowed type / value    | DSL Version | Required |  Default Value | Description                                                                                                                                                                            |
| :-----------: | :------------------------: | :---------: | :------: | :------------: | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
|   **field**   | [reference](../references) |      1      |    yes   |                | Reference to other field.                                                                                                                                                              |
| **bitLength** |   [unsigned](../numeric)   |      2      |    no    | length in bits | Serialization length in bits, applicable only to a member of [\<bitfield>](../fields/bitfield) and when referencing a field that can be a member of [\<bitfield>](../fields/bitfield). |
