Product data

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MFRC631 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2014. All rights reserved. Product data sheet COMPANY PUBLIC
Rev. 3.3 — 4 February 2014
227433 6 of 120
NXP Semiconductors
MFRC631
High performance ISO/IEC 14443 A/B reader solution
8. Functional description
Fig 3. Detailed block diagram of the MFRC631
001aam005
I
2
C,
LOGICAL
FIFO
512 Bytes
REGISTERS
STATEMACHINES
EEPROM
8 kByte
SPI
SAM interface
VOLTAGE
REGULATOR
3/5 V =>
1.8 V
DVDD
POR
ADC PLLLFO
RX OSCTX
VOLTAGE
REGULATOR
3/5 V =>
1.8 V
AVDD
RNG
ANALOGUE FRONT-END
BOUNDARY
SCAN
IF0
IFSEL0
IFSEL1
IF1
IF2
IF3
TCK
TDI
TMS
TDO
RESET
LOGIC
PDOWN
I
2
C
RS232
SPI
host interfaces
INTERRUPT
CONTROLLER
IRQ SIGIN
TIMER0..3
CRC
TIMER4
(WAKE-UP
TIMER)
SIGPRO
TX
CODEC
RX
DECOD
CL-
COPRO
SIGIN/
SIGOUT
CONTROL
SIGOUT VMID RXN
RXP
TX1
TX2
XTAL1
XTAL2
SDA
SCL
VDD
VSS
PVDD
TVDD
TVSS
AUX1
AUX2
AVDD
DVDD
CLKOUT