參數(shù)資料
型號： MFRC53101T
廠商： NXP Semiconductors N.V.
元件分類： 通信及網(wǎng)絡(luò)
英文描述： ISO-IEC 14443 reader IC
封裝： MFRC53101T/0FE<SOT287-1 (SO32)|<<http://www.nxp.com/packages/SOT287-1.html<1<week 51, 2004,;MFRC53101T/0FE<SOT287-1 (SO32)|<<http://www.nxp.com/packages/SOT287-1.html<
文件頁數(shù)： 89/116頁
文件大?。?/td> 862K
代理商： MFRC53101T
MFRC531_34
NXP B.V. 2010. All rights reserved.
Product data sheet
PUBLIC
Rev. 3.4 — 26 January 2010
056634
89 of 116
NXP Semiconductors
MFRC531
ISO/IEC 14443 reader IC
The LoadKey command interprets the first twelve bytes it finds in the FIFO buffer as the
key when stored in the correct key format as described in
Section 9.2.3.1 “Key format” on
page 16
. When the twelve argument bytes are available in the FIFO buffer they are
checked and, if valid, are copied into the key buffer.
The LoadKey command can only be started by the microprocessor and it automatically
stops after copying the key from the FIFO buffer to the key buffer.
11.6.2.1
Relevant LoadKey command error flags
All bytes requested are copied from the FIFO buffer to the key buffer. If the key format is
not correct (see
Section 9.2.3.1 “Key format” on page 16
) an undefined value is copied
into the key buffer and the KeyErr flag is set.
11.6.3
Authent1 command 0Ch
Table 147. Authent1 command 0Ch
Command Value
The Authent1 command is a special Transceive command; it sends six argument bytes to
the card. The card’s response is not sent to the microprocessor, it is used instead to
authenticate the card to the MFRC531 and vice versa.
The Authent1 command can be triggered only by the microprocessor. The sequence of
states for this command are the same as those for the Transceive command; see
Section 11.2.3 on page 82
.
11.6.4
Authent2 command 14h
Table 148. Authent2 command 14h
Command
Value
The Authent2 command is a special Transceive command. It does not need any argument
byte, however all the data needed to be sent to the card is assembled by the MFRC531.
The card response is not sent to the microprocessor but is used to authenticate the card
to the MFRC531 and vice versa.
The Authent2 command can only be started by the microprocessor. The sequence of
states for this command are the same as those for the Transceive command; see
Section 11.2.3 on page 82
.
Action
Arguments and data
Returned
data
-
-
-
-
-
-
Authent1
0Ch
performs the first part of the Crypto1
card authentication
card Authent1 command
card block address
card serial number LSB
card serial number byte1
card serial number byte2
card serial number MSB
Action
Arguments
and data
-
Returned
data
-
Authent2
14h
performs the second part of the card
authentication using the Crypto1 algorithm
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