CR14 STMicroelectronics, CR14 Datasheet - Page 20

• Manufacturer Part Number: CR14
• Description: Low Cost Iso14443 Type-b Contactless Coupler Chip With Anti-collision And Crc Management
• Manufacturer: STMicroelectronics

4 CR14 I²C protocol description
Figure 8.
20/46
First byte of instruction
decoded by the CR14
with R/W = 1 already
I²C Polling Flowchart using ACK
ReSTART
STOP
NO
NO
CODE with R/W=1
START Condition
DEVICE SELECT
Radio Frequency
data exchange
operation is
in progress
addressing
the CR14
returned
ACK
Next
YES
YES
Proceed to READ
Operation
STOP
ai12063
CR14