CRX14 데이터 시트보기 (PDF) - STMicroelectronics

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CRX14

Low Cost ISO14443 type-B Contactless Coupler Chip with Anti-Collision, CRC Management and Anti-Clone Function

STMicroelectronics 

CRX14

Addresses above Location 06h

In I²C Write mode, when the CRX14 receives the

8-bit register address, and the address is above lo-

cation 06h, the device does not acknowledge

(NoACK) and deselects itself from the bus. The

Serial Data line, SDA, stays at logic ‘1’ (pull-up re-

sistor), and the I²C Host receives a NoACK during

the 9th bit time. The SDA line stays High until the

STOP condition is issued.

In the I²C Current and Random Address Read

modes, when the CRX14 receives the 8-bit regis-

ter address, and the address is above location

06h, the device does not acknowledge the Device

Select Code after the START condition, and dese-

lects itself from the bus.

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