Rainbow Electronics MAX66040 - Manual (Page 10)

Error Indication
Depending on the complexity of a function, various
error conditions can occur. In case of an error, the
response to a request begins with a 01h byte followed
by one error code.
Table 5 shows a matrix of commands and potential
errors. If there was no error, the information field of the
response begins with 00h followed by command-spe-
cific data, as specified in the detailed command
description.
If the MAX66040 does not recognize a command, it
does not generate a response.
MAX66040
ISO/IEC 14443 Type B-Compliant
Secure Memory
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ABRIDGED DATA SHEET
Table 5. Error Code Matrix
Refer to the full data sheet for this information.