NXP Semiconductors PN544 C2 - Page 126

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 — 2010-06-16 126 of 172
External NFC-IP1
Initiator
Send the data in
NFC-IP1 protocol
Receive the data in
NFC-IP1 protocol
PN544
HOST
PN544 Initialization
NFC-IP1 Activation performed
NXP_EVT_NFC_RCV_DATA
NFC-IP1 Target
NXP_EVT_NFC_SND_DATA (MI=1)
NFC-IP1
Target
Gate
NFC-IP1
Target
Gate
NFC-IP1
Target
Gate
NFC-IP1
Target
Gate
NFC-IP1
Target
Gate
NFC-IP1
Target
Gate
NXP_EVT_NFC_CONTINUE_MI
NXP_EVT_NFC_SND_DATA (MI=0)
NFC-IP1
Target
Gate
NFC-IP1
Target
Gate
Send the data in
NFC-IP1 protocol
Fig 68. NFC-IP1 TARGET with NXP_EVT_NFC_CONTINUE_MI
Note:
When using the MI chaining information of the NXP_EVT_NFC_SND_DATA event,
the host must insure that the size of data transmitted within this message is lower than
the ‘maximum frame length’ supported (can be retrieved in NXP_NFCT_PARAM).