---
title: RequestFlagProtocolExtension
framework: corenfc
role: symbol
role_heading: Type Property
path: corenfc/nfciso15693requestflag/requestflagprotocolextension
---

# RequestFlagProtocolExtension

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

## Declaration

```swift
static var RequestFlagProtocolExtension: NFCISO15693RequestFlag { get }
```

## See Also

### Request Flags

- [RequestFlagDualSubCarriers](corenfc/nfciso15693requestflag/requestflagdualsubcarriers.md)
- [RequestFlagHighDataRate](corenfc/nfciso15693requestflag/requestflaghighdatarate.md)
- [RequestFlagSelect](corenfc/nfciso15693requestflag/requestflagselect.md)
- [RequestFlagAddress](corenfc/nfciso15693requestflag/requestflagaddress.md)
- [RequestFlagOption](corenfc/nfciso15693requestflag/requestflagoption.md)