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# PollingTimeSlot

Constants that specify the maximum number of time slots.

```
typealias PollingTimeSlot = NFCFeliCaPollingTimeSlot
```

## Topics

### Maximum Slots

[`PollingTimeSlotMax1`](/documentation/CoreNFC/NFCFeliCaPollingTimeSlot/PollingTimeSlotMax1)

A constant that indicates a maximum of one slot.

[`PollingTimeSlotMax2`](/documentation/CoreNFC/NFCFeliCaPollingTimeSlot/PollingTimeSlotMax2)

A constant that indicates a maximum of two slots.

[`PollingTimeSlotMax4`](/documentation/CoreNFC/NFCFeliCaPollingTimeSlot/PollingTimeSlotMax4)

A constant that indicates a maximum of four slots.

[`PollingTimeSlotMax8`](/documentation/CoreNFC/NFCFeliCaPollingTimeSlot/PollingTimeSlotMax8)

A constant that indicates a maximum of eight slots.

[`PollingTimeSlotMax16`](/documentation/CoreNFC/NFCFeliCaPollingTimeSlot/PollingTimeSlotMax16)

A constant that indicates a maximum of sixteen slots.


---

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