DEMOKITCRX14 STMicroelectronics, DEMOKITCRX14 Datasheet - Page 20

• Manufacturer Part Number: DEMOKITCRX14
• Description: RFID EVALUATION KIT ISO14443-B
• Manufacturer: STMicroelectronics
• Type: Development kitr

Specifications of DEMOKITCRX14

• Contents: CD-ROM, CRX14 Board, USB Transceiver, Samples and Documentation
• Processor To Be Evaluated: CRX14
• Interface Type: I2C
• Operating Supply Voltage: 5 V
• For Use With/related Products: CRX14
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-3704

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
20/40
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.