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 — 2010-06-16 160 of 172
Address Name Comment Default
0x9F9C
FeRd System code LSB
0x9F9E
NfcT-RFOFF-TO_MSB
0x9F9F
NfcT-RFOFF-TO_LSB
In NFC target active, Time the target wait after command reception has
been ended and RF OFF before reinitializing.
To avoid active target in front of passive reader (in 5.5µs step)
0x1570
0x9F35
Card_Emulation_TO_MSB
0x9F36
Card_Emulation_TO_LSB
Time for which PN544 stays in CE after leaving RF field.
(in 48µs step)
0x0411
0x9EB1
FlashBuildVersion
EEPROM code identifier for FW build revision.
0x5C
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