MF0ICU1 查看數據表（PDF） - NXP Semiconductors.

零件编号

产品描述 (功能)

生产厂家

MF0ICU1

MIFARE Ultralight contactless single-ticket IC

NXP Semiconductors. 

NXP Semiconductors

MF0ICU1

MIFARE Ultralight contactless single-ticket IC

7.2.1 Idle state

After a Power-On Reset (POR), the MF0ICU1 switches directly to the idle state. It only

exits this state when a REQA or a WUPA command is received from the PCD. Any other

data received while in the idle state is interpreted as an error and the MF0ICU1 remains

Idle.

After a correctly executed HALT command out of the ACTIVE state, the halt state changes

to the wait state which can be exited with a WUPA command.

7.2.2 Ready 1 state

In this state, the MF0ICU1 supports the PCD when resolving the first part of its UID

(3 bytes) with the ANTICOLLISION or SELECT command from cascade level 1. This state

is exited correctly after execution of either of the following commands:

• SELECT command from cascade level 1: the PCD switches the MF0ICU1 into

Ready 2 state where the second part of the UID is resolved.

• READ command (from address 0): all anticollision mechanisms are bypassed and the

MF0ICU1 switches directly to the active state.

Remark: If more than one MF0ICU1 is in the PCD field, a READ command from

address 0 causes a collision due to the different serial numbers and all MF0ICU1 devices

are selected.

Remark: Any other data received in the Ready 1 state is interpreted as an error and

depending on its previous state the MF0ICU1 returns to the wait, idle or halt state.

7.2.3 Ready 2 state

In this state, the MF0ICU1 supports the PCD when resolving the second part of its UID

(4 bytes) with the cascade level 2 ANTICOLLISION command. This state is usually exited

using the cascade level 2 SELECT command.

Alternatively, state Ready 2 may be skipped using a READ command (from address 0) as

described in state Ready 1.

Remark: If more than one MF0ICU1 is in the PCD field, a READ command from

address 0 causes a collision due to the different serial numbers and all MF0ICU1 devices

are selected.

Remark: The response of the MF0ICU1 to the cascade level 2 SELECT command is the

Select Acknowledge (SAK) byte. In accordance with ISO/IEC 14443 this byte indicates if

the anticollision cascade procedure has finished. It also defines the type of device

selected for the MIFARE architecture platform. The MF0ICU1 is now uniquely selected

and only this device will communicate with the PCD even when other contactless devices

are present in the PCD field.

Remark: Any other data received when the device is in this state is interpreted as an error

and depending on its previous state the MF0ICU1 returns to the wait, idle or halt state.

028639

Product data sheet

COMPANY PUBLIC

All information provided in this document is subject to legal disclaimers.

Rev. 3.9 — 23 July 2014

028639

© NXP Semiconductors N.V. 2014. All rights reserved.

8 of 31

Share Link: