mfrc500 NXP Semiconductors, mfrc500 Datasheet - Page 3

• Manufacturer Part Number: mfrc500
• Description: Highly Integrated Iso14443a Reader Ic
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Highly Integrated ISO 14443A Reader IC
6.3
6.3.1
6.3.2
6.3.3
6.4
6.4.1
6.4.2
7
7.1
7.2
7.2.1
7.3
7.4
7.5
8
8.1
8.1.1
8.2
8.2.1
8.2.2
8.3
8.4
9
9.1
9.2
9.2.1
9.2.2
9.2.3
9.2.4
9.3
9.3.1
9.3.2
9.3.3
9.3.4
9.4
10
10.1
10.2
10.3
Register Initialisation Files (Read/Write) .............................................................................................66
Start Up Register Initialisation File (Read/Write).................................................................................66
Shipment Content of Start Up Register Initialisation File ....................................................................67
Register Initialisation File (Read/Write)...............................................................................................68
Crypto1 Keys (Write Only)...................................................................................................................68
Key Format..........................................................................................................................................68
Storage of Keys in the E²PROM .........................................................................................................69
FIFO BUFFER.....................................................................................................................................70
Overview..............................................................................................................................................70
Accessing the FIFO Buffer ..................................................................................................................70
Access Rules.......................................................................................................................................70
Controlling the FIFO-Buffer .................................................................................................................71
Status Information about the FIFO-Buffer ...........................................................................................71
Register Overview FIFO Buffer ...........................................................................................................72
INTERRUPT REQUEST SYSTEM .....................................................................................................73
Overview..............................................................................................................................................73
Interrupt Sources Overview.................................................................................................................73
Implementation of Interrupt Request Handling....................................................................................74
Controlling Interrupts and their Status.................................................................................................74
Accessing the Interrupt Registers .......................................................................................................74
Configuration of Pin IRQ .....................................................................................................................74
Register Overview Interrupt Request System .....................................................................................75
TIMER UNIT ........................................................................................................................................76
Overview..............................................................................................................................................76
Implementation of the Timer Unit ........................................................................................................77
Block Diagram .....................................................................................................................................77
Controlling the Timer Unit....................................................................................................................78
Timer Unit Clock and Period ...............................................................................................................78
Status of the Timer Unit.......................................................................................................................79
Usage of the Timer Unit ......................................................................................................................79
Time-Out- and Watch-Dog-Counter ....................................................................................................79
Stop Watch ..........................................................................................................................................79
Programmable One-Shot Timer ..........................................................................................................79
Periodical Trigger ................................................................................................................................79
Register Overview Timer Unit .............................................................................................................80
POWER REDUCTION MODES ..........................................................................................................81
Hard Power Down ...............................................................................................................................81
Soft Power Down.................................................................................................................................81
Stand By Mode....................................................................................................................................82
3
Product Specification Rev. 3.2;December 2005
MF RC500
PUBLIC