MFRC53001T/0FE,112 NXP Semiconductors, MFRC53001T/0FE,112 Datasheet - Page 23

• Manufacturer Part Number: MFRC53001T/0FE,112
• Description: IC MIFARE HS READER 32-SOIC
• Manufacturer: NXP Semiconductors
• Series: MIFARE®r

Specifications of MFRC53001T/0FE,112

• Rf Type: Read Only
• Frequency: 13.56MHz
• Features: ISO14443-A, ISO14443-B, ISO15693
• Package / Case: 32-SOIC (0.300", 7.50mm Width)
• Product: RFID Readers
• Operating Temperature Range: - 25 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-2223-5; 935269692112; MFRC530; MFRC53T0FED

NXP Semiconductors
MFRC530_33
Product data sheet
PUBLIC
9.5.1.3 Timer unit clock and period
9.5.1.4 Timer unit status
Remark: Every start event reloads the timer from the TimerReload register which
re-triggers the timer unit.
The timer can be configured to stop on one of the following events:
Loading a new value, e.g. zero, into the TimerReload register or changing the timer unit
while it is counting will not immediately influence the counter. In both cases, this is
because this register only affects the counter content after a start event.
If the counter is stopped when bit TStopNow is set, no TimerIRq is flagged.
The timer unit clock is derived from the 13.56 MHz on-board chip clock using the
programmable divider. Clock selection is made using the TimerClock register
TPreScaler[4:0] bits based on
The values for the TPreScaler[4:0] bits are between 0 and 21 which results in a minimum
periodic time (T
The time period elapsed since the last start event is calculated using
This results in a minimum time period (t
The SecondaryStatus register’s TRunning bit shows the timer’s status. Configured start
events start the timer at the TReloadValue[7:0] and change the status flag TRunning to
logic 1. Conversely, configured stop events stop the timer and set the TRunning status
flag to logic 0. As long as status flag TRunning is set to logic 1, the TimerValue register
changes on the next timer unit clock cycle.
The TimerValue[7:0] bits can be read directly from the TimerValue register.
•
•
•
•
•
•
•
t
f
Timer
TimerClock
transmission of the first bit to the card (TxBegin event) with bit TStartTxBegin = logic 1
transmission of the last bit to the card (TxEnd event) with bit TStartTxEnd = logic 1
bit TStartNow is set to logic 1 by the microprocessor
receipt of the first valid bit from the card (RxBegin event) with bit
TStopRxBegin = logic 1
receipt of the last bit from the card (RxEnd event) with bit TStopRxEnd = logic 1
the counter module has decremented down to zero and bit TAutoRestart = logic 0
bit TStopNow is set to logic 1 by the microprocessor.
=
TReLoadValue TimerValue
---------------------------------------------------------------------------- - s [ ]
=
---------------------------
T
TimerClock
All information provided in this document is subject to legal disclaimers.
TimerClock
f
1
TimerClock
Rev. 3.3 — 6 July 2010
) of between 74 ns and 150 ms.
–
=
2
-------------------------- MHz ]
Equation
057433
TPreScaler
13.56
Timer
3:
[
) of between 74 ns and 40 s.
ISO/IEC 14443 A Reader IC
MFRC530
Equation
© NXP B.V. 2010. All rights reserved.
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