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): 52/116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
52 of 116
NXP Semiconductors
MFRC531
ISO/IEC 14443 reader IC
10.5.1.8
InterruptRq register
Interrupt request flags.
Table 53.
Bit
Symbol
Access
Table 54.
Bit Symbol
7
SetIRq
[1]
PrimaryStatus register Bit HiAlertIRq stores this event and it can only be reset using bit SetIRq.
InterruptRq register (address: 07h) reset value: 0000 0000b, 00h bit allocation
7
6
5
4
SetIRq
0
TimerIRq
TxIRq
W
R/W
D
D
3
2
1
0
RxIRq
D
IdleIRq
D
HiAlertIRq
D
LoAlertIRq
D
InterruptRq register bit descriptions
Value
Description
1
sets the marked bits in the InterruptRq register
0
clears the marked bits in the InterruptRq register
-
reserved
TimerIRq
1
timer decrements the TimerValue register to zero
0
timer decrements are still greater than zero
TxIRq
1
TxIRq is set to logic 1 if one of the following events occurs:
Transceive command; all data transmitted
Authent1 and Authent2 commands; all data transmitted
WriteE2 command; all data is programmed
CalcCRC command; all data is processed
0
when not acted on by Transceive, Authent1, Authent2, WriteE2 or
CalcCRC commands
RxIRq
1
the receiver terminates
0
reception still ongoing
IdleIRq
1
command terminates correctly. For example; when the Command
register changes its value from any command to the Idle command.
If an unknown command is started the IdleIRq bit is set.
Microprocessor start-up of the Idle command does not set the
IdleIRq bit.
0
IdleIRq = logic 0 in all other instances
HiAlertIRq
1
PrimaryStatus register HiAlert bit is set
[1]
0
PrimaryStatus register HiAlert bit is not set
LoAlertIRq
1
PrimaryStatus register LoAlert bit is set
[1]
0
PrimaryStatus register LoAlert bit is not set
6
5
0
4
3
2
1
0
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