MFRC52301HN1,157 NXP Semiconductors, MFRC52301HN1,157 Datasheet - Page 45

• Manufacturer Part Number: MFRC52301HN1,157
• Description: IC READER 13.56MHZ 32-HVQFN
• Manufacturer: NXP Semiconductors

Specifications of MFRC52301HN1,157

• Frequency: 13.56MHz
• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Rf Type: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935282956157

NXP Semiconductors
MFRC523_34
Product data sheet
PUBLIC
9.2.2.2 ModeReg register
Defines general mode settings for transmitting and receiving.
Table 54.
Table 55.
Bit
Symbol
Access
Bit
7
6
5
4
3
2
1 to 0
Symbol
MSBFirst
reserved
TxWaitRF
reserved
PolMFin
reserved
CRCPreset
[1:0]
MSBFirst reserved TxWaitRF reserved
ModeReg register (address 11h); reset value: 3Fh bit allocation
ModeReg register bit descriptions
R/W
7
All information provided in this document is subject to legal disclaimers.
Rev. 3.5 — 24 September 2010
Value
1
-
1
-
1
0
-
00
01
10
11
6
-
Description
CRC coprocessor calculates the CRC with MSB first. In the
CRCResultReg register the values for the CRCResultMSB[7:0]
bits and the CRCResultLSB[7:0] bits are bit reversed
Remark: during RF communication this bit is ignored
reserved for future use
transmitter can only be started if an RF field is generated
reserved for future use
defines the polarity of pin MFIN
Remark: the internal envelope signal is encoded active LOW,
changing this bit generates a MFinActIRq event
reserved for future use
defines the preset value for the CRC coprocessor for the CalcCRC
command
Remark: during any communication, the preset values are
selected automatically according to the definition of bits in the
RxModeReg and TxModeReg registers
115235
polarity of pin MFIN is active HIGH
polarity of pin MFIN is active LOW
0000h
6363h
A671h
FFFFh
R/W
5
4
-
PolMFin
R/W
3
reserved
2
-
Contactless reader IC
MFRC523
© NXP B.V. 2010. All rights reserved.
CRCPreset[1:0]
1
R/W
45 of 97
0