DEMOKITCRX14 STMicroelectronics, DEMOKITCRX14 Datasheet - Page 21

• 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
Figure 9.
I²C CURRENT ADDRESS READ
I²C RANDOM ADDRESS READ
After reading each Byte, the CRX14 waits for the master to send an ACK during the 9
time. If the master does not return an ACK within this time, the CRX14 terminates the data
transfer and switches to stand-by mode.
CRX14 I²C read modes sequences
BUS Master
CRX14 READ
BUS Slave
BUS Master
CRX14 READ
BUS Slave
DEV SEL
DEV SEL
R/W
R/W
ACK
ACK
ADDRESS
DATA 1
Doc ID 8880 Rev 4
ACK
ACK
DEV SEL
DATA 2
ACK
R/W
ACK
DATA 3
DATA 1
ACK
ACK
DATA 4
DATA 2
CRX14 I²C protocol description
ACK
ACK
DATA N
DATA N
NoACK
NoACK
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