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 46 of 172
mode is left as soon as PN544 receive any data from the host or in case of PN544
Reset.
• Receive information about PN544 behaviour.
• Access PN544 configuration (EEDATA, HW registers) via Read & Write commands.
• Perform self tests.
Table 28. Self test commands
Value Command Description
‘20’
NXP_SELF_TEST_ANTENNA
Perform antenna self test
‘21’
NXP_SELF_TEST_SWP
Perform SWP self test. Purpose of the test is to
check SWIO pin connectivity. Principle is to
communicate (SWP activation procedure) with the
secure element connected over SWP interface.
Note:
SWP interface can be configured by setting the SWP_Bitrate,
SwpMgt_Request_Power & SWP_CurrentThreshold
EEPROM area. (See ‘SWP
configuration’ chapter).
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