<!--
{
  "availability" : [
    "iOS: 11.0.0 -",
    "iPadOS: 11.0.0 -",
    "macCatalyst: 13.1.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "CoreNFC",
  "identifier" : "/documentation/CoreNFC/RequestFlag",
  "metadataVersion" : "0.1.0",
  "role" : "Type Alias",
  "symbol" : {
    "kind" : "Type Alias",
    "modules" : [
      "Core NFC"
    ],
    "preciseIdentifier" : "c:@T@RequestFlag"
  },
  "title" : "RequestFlag"
}
-->

# RequestFlag

A set of bit mask options that, when combined, define the request flags to use when sending a command.

```
typealias RequestFlag = NFCISO15693RequestFlag
```

## Topics

### Request Flags

[`RequestFlagDualSubCarriers`](/documentation/CoreNFC/NFCISO15693RequestFlag/RequestFlagDualSubCarriers)

A bit mask value that turns on the subcarrier flag.

[`RequestFlagHighDataRate`](/documentation/CoreNFC/NFCISO15693RequestFlag/RequestFlagHighDataRate)

A bit mask value that turns on the high data rate flag.

[`RequestFlagProtocolExtension`](/documentation/CoreNFC/NFCISO15693RequestFlag/RequestFlagProtocolExtension)

A bit mask value that turns on the protocol extension flag.

[`RequestFlagSelect`](/documentation/CoreNFC/NFCISO15693RequestFlag/RequestFlagSelect)

A bit mask value that turns on the select flag.

[`RequestFlagAddress`](/documentation/CoreNFC/NFCISO15693RequestFlag/RequestFlagAddress)

A bit mask value that turns on the address flag.

[`RequestFlagOption`](/documentation/CoreNFC/NFCISO15693RequestFlag/RequestFlagOption)

A bit mask value that turns on the option flag.


---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)