NXP Semiconductors
UM10883
PN7462 family Quick Start Guide - Development Kit
UM10883
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User manual
COMPANY PUBLIC
Rev. 1.6 — 14 May 2018
319816
35 of 120
(7) <Load Protocol> (e.g. type A 106)
(8) <Single REQA> (using again the EEPROM settings)
6.5 PN7462 family register access
The NFC Cockpit allows the reading and writing of all the PN7462 family IC registers
(see Fig 36).
Selecting a register reads and shows the hexadecimal value as well as the
corresponding bit values. The input allows to change each bit separately as well as
writing hexadecimal values. Writing back the value changes the PN7462AU register.
On “mouse over”, the application displays a short description of the register parts.
Note:
Some register content cannot be changed manually (“read only”) and some
content might be overwritten by the PN7462 family firmware.
(1) Register area is a RAM area, i.e. might be overwritten or changed automatically
Fig 36. PN7462 NFC cockpit register access
All registers, which are used in the LOAD_RF_CONFIG command, can be read from the
EEPROM. The user must select the register and the protocol.
All registers, which are used in the LOAD_RF_CONFIG command, can be written into
the EEPROM. The user must select the register and the protocol.
This allows an easy EEPROM update of the relevant Tx and Rx registers after
optimization in RAM.
6.6 PN7462 family EEPROM access
The NFC Cockpit allows four options for accessing EEPROM (see Fig 37):
•
Read EEPROM - reads a single byte from EEPROM using byte address
