mfrc522 NXP Semiconductors, mfrc522 Datasheet - Page 33

• Manufacturer Part Number: mfrc522
• Description: Contactless Reader Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
112132
Product data sheet
9.2.3.1 Reserved
9.2.3.2 CRCResultReg
9.2.3 Page 2: Configuration
Functionality is reserved for further use.
Table 71:
Table 72:
Shows the actual MSB and LSB values of the CRC calculation.
Remark: The CRC is split into two 8-bit register.
Table 73:
Table 74:
Table 75:
Table 76:
Bit
7 to 0
Bit
7 to 0
Bit
7 to 0
Symbol
Access
Symbol
Access
Symbol
Access
Rights
Rights
Rights
Bit
Bit
Bit
Symbol
-
Symbol
CRCResultMSB
Symbol
CRCResultLSB
Reserved register (address 20h); reset value: 00h
Description of Reserved register bits
Description of CRCResultReg higher bits
Description of CRCResultReg lower bits
CRCResultReg register (address 21h); reset value: FFh
CRCResultReg register (address 22h); reset value: FFh
7
7
7
Rev. 3.2 — 22 May 2007
6
6
6
Description
Reserved for future use.
This register shows the actual value of the least significant byte of
Description
This register shows the actual value of the most significant byte of
the CRCResultReg register. It is valid only if bit CRCReady in
register Status1Reg is set to logic 1.
Description
the CRCResult register. It is valid only if bit CRCReady in register
Status1Reg is set to logic 1.
5
5
5
CRCResultMSB
CRCResultLSB
4
4
4
RFU
-
r
r
3
3
3
2
2
2
Contactless Reader IC
MFRC522
© NXP B.V. 2007. All rights reserved.
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