NXP Semiconductors PN544 C2 - Initiator

NXP Semiconductors
UM191812
PN544 C2 User Manual
191812 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved.
User Manual Rev. 1.2 — 2010-06-16 118 of 172
9.12.1 Initiator
To start discovering a remote NFC target, the host shall send an ETSI HCI generic event
“EVT_READER_REQUESTED”. When a remote NFC target has been activated, host
receives the proprietary event “NXP_EVT_NFC_ACTIVATED”. Then the host can
exchange data with the remote peer using event “NXP_EVT_NFC_SND_DATA” and
receiving event “NXP_EVT_NFC_RCV_DATA”. The host can close the communication
with remote peer by sending ETSI HCI generic event “EVT_END_OPERATION”.
External NFC-IP1
Target
Initialization, anticollision, and
activation
Send the data in
NFC-IP1 protocol
Receive the data in
NFC-IP1 protocol
PN544
HOST
De-Activation
NFC-IP1
Initiator
Gate
PN544 Initialization
NXP_EVT_NFC_SND_DATA
EVT_END_OPERATION
NFC-IP1 Initiator
NFC-IP1
Initiator
Gate
NFC-IP1
Initiator
Gate
EVT_READER_REQUESTED
NFC-IP1
Initiator
Gate
NXP_EVT_NFC_ACTIVATED
NXP_EVT_NFC_RCV_DATA
NFC-IP1
Initiator
Gate
NFC-IP1
Initiator
Gate
NFC-IP1
Initiator
Gate
NFC-IP1
Initiator
Gate
NFC-IP1
Initiator
Gate
NFC-IP1
Initiator
Gate
Fig 63. NFC-IP1 Initiator