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MFRC63002R 데이터시트(PDF) 22 Page - NXP Semiconductors

부품명 MFRC63002R
상세설명  Contactless reader IC
PDF  118 Pages
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제조업체  NXP [NXP Semiconductors]
홈페이지  http://www.nxp.com
Logo NXP - NXP Semiconductors

MFRC63002R 데이터시트(HTML) 22 Page - NXP Semiconductors

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MFRC630
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.1 — 6 September 2012
227531
22 of 118
NXP Semiconductors
MFRC630
Contactless reader IC
In order to support a fast FIFO data transfer, the address pointer is not incremented
automatically in case the address is pointing to the FIFO.
The read/write bit shall be set to logic 1.
8.4.4.9
I2CL-bus interface
The MFRC630 provides an interface option according to of a logical handling of an I2C
interface. This logical interface fulfills the I2C specification, but the rise/fall timings will not
be according the I2C standard. Standard I/O pads are used for communication and the
communication speed is limited to 5 MBaud. The protocol itself is equivalent to the fast
mode protocol of I2C. The address is 01010xxb, where the last two bits of the address can
be defined by the application. The definition of this bits can be done by two options. With a
pin, where the higher bit is fixed to 0 or the configuration can be defined via EEPROM.
Refer to the EEPROM configuration in Section 8.7.
Fig 17. Register read and write access
001aam305
Ack
0
(W)
Ack
0
SA
I2C slave address
A7-A0
CLRC663 register
address A6-A0
Ack
DATA
[7..0]
SO
SO
[0..n]
Ack
0
(W)
Ack
Optional, if the previous access was on the same register address
Read Cycle
Write Cycle
0
SA
I2C slave address
A7-A0
CLRC663 register
address A6-A0
1
(R)
Ack
SA
sent by master
sent by slave
I2C slave address
A7-A0
Ack
DATA
[7..0]
SO
[0..n]
0..n
Nack
DATA
[7..0]
Table 16.
Timing parameter I2CL
Parameter
Min
Max
Unit
fSCL
05MHz
tHD;STA
80
-
ns
tLOW
100
-
ns
tHIGH
100
-
ns



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