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  145 of 172
 
Fig 74.  Switch to Download mode 
Note: WRITE, READ, CHECK & RESET command are part of the Download protocol 
documented in the dedicated Application Note [8].  
WRITE com
mand is mandatory to use,  
READ & CHECK commands are optional to cross check the consistency of the 
EEPROM.  
RESET command is used to go out of the Download mode; this command can be 
replaced by a Hardware reset