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RF430CL330HCPWR 데이터시트(PDF) 12 Page - Texas Instruments

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부품명 RF430CL330HCPWR
상세설명  Dynamic NFC Interface Transponder
PDF  47 Pages
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
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RF430CL330HCPWR 데이터시트(HTML) 12 Page - Texas Instruments

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I C or SPI
Interface
2
Processing
Unit
(MSP430-
based)
ISO14443B
RF
Interface
NDEF
Memory
(SRAM)
SCL/SO
SDA/SI
SCK
E0
E1
E2
INTO
ANT1
VCC
VSS
VCORE
ANT2
SCMS/CS
RST
RF430CL330H
SLAS916C – NOVEMBER 2012 – REVISED NOVEMBER 2014
www.ti.com
5
Detailed Description
5.1
Functional Block Diagram
Figure 5-1 shows the functional block diagram.
Figure 5-1. Functional Block Diagram
5.2
Serial Communication Interface
A "dual-mode" serial communication interface supports either SPI or I2C communication. The serial
interface allows writing and reading the internal NDEF memory as well as configuring the device
operation.
5.3
SPI or I
2C Mode Selection
The selection between I2C or SPI mode takes place during the power-up and initialization phase of the
device based on the input level at pin SCMS/CS (see Table 5-1).
Table 5-1. SPI or I2C Mode Selection
Input Level at SCMS/CS During
Selected Serial Interface
Initialization
0
I2C
1
SPI
During initialization, an integrated pullup resistor pulls SCMS/CS high, which makes SPI the default
interface. To enable I2C, this pin must be tied low externally. The pullup resistor is disabled after
initialization to avoid any current through the resistor during normal operation. In SPI mode, the pin reverts
to its CS functionality after initialization.
12
Detailed Description
Copyright © 2012–2014, Texas Instruments Incorporated
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Product Folder Links: RF430CL330H



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