Datasheet

Table Of Contents
PN532_C1 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2017. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.6 — 28 November 2017
115436 140 of 222
NXP Semiconductors
PN532/C1
Near Field Communication (NFC) controller
8.6.21 CIU tests signals
8.6.21.1 CIU self-test
The CIU has the capability to perform a self-test. To start the self-test the following
procedure has to be performed:
1. Perform a SoftReset.
2. Clear the internal buffer by writing 25 bytes of 00h and perform the Config command.
3. Enable the self-test by writing the value 09h to the register CIU_AutoTest.
4. Write 00h to the FIFO.
5. Start the self-test with the CalcCRC command.
6. The self-test will be performed.
7. When the self-test is finished, the FIFO is contains the following bytes:
Correct answer for VersionReg equal to 80h:
0x00, 0xaa, 0xe3, 0x29, 0x0c, 0x10, 0x29, 0x6b
0x76, 0x8d, 0xaf, 0x4b, 0xa2, 0xda, 0x76, 0x99
0xc7, 0x5e, 0x24, 0x69, 0xd2, 0xba, 0xfa, 0xbc
0x3e, 0xda, 0x96, 0xb5, 0xf5, 0x94, 0xb0, 0x3a
0x4e, 0xc3, 0x9d, 0x94, 0x76, 0x4c, 0xea, 0x5e
0x38, 0x10, 0x8f, 0x2d, 0x21, 0x4b, 0x52, 0xbf
0xfb, 0xf4, 0x19, 0x94, 0x82, 0x5a, 0x72, 0x9d
0xba, 0x0d, 0x1f, 0x17, 0x56, 0x22, 0xb9, 0x08