mfrc531 NXP Semiconductors, mfrc531 Datasheet - Page 14

• Manufacturer Part Number: mfrc531
• Description: Iso/iec 14443 Reader Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
MFRC531_34
Product data sheet
PUBLIC
9.2.2.1 StartUp register initialization file (read/write)
9.2.2.2 Factory default StartUp register initialization file
Remark: The following points apply to initialization:
The EEPROM memory block address 1 and 2 contents are used to automatically set the
register subaddresses 10h to 2Fh during the initialization phase. The default values stored
in the EEPROM during production are shown in
register initialization
The byte assignment is shown in
Table 14.
During the production tests, the StartUp register initialization file is initialized using the
default values shown in
values are written to the MFRC531’s registers.
EEPROM byte address
10h (block 1, byte 0)
11h
…
2Fh (block 2, byte 15)
•
•
•
the Page register (addressed using 10h, 18h, 20h, 28h) is skipped and not initialized.
make sure that all PreSetxx registers are not changed.
make sure that all register bits that are reserved are set to logic 0.
Byte assignment for register initialization at start-up
file”.
Rev. 3.4 — 26 January 2010
Table
15. During each power-up and initialization phase, these
056634
Table
14.
Register address
10h
11h
…
2Fh
Section 9.2.2.2 “Factory default StartUp
ISO/IEC 14443 reader IC
MFRC531
© NXP B.V. 2010. All rights reserved.
Remark
skipped
copied
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