AN1949 STMicroelectronics, AN1949 Datasheet - Page 10

• Manufacturer Part Number: AN1949
• Description: RFID Reader using STMicroelectronics PSD MCU and CRX14 Coupler to Implement a China National ID Card Reader
• Manufacturer: STMicroelectronics

AN1949 - APPLICATION NOTE
Figure 9. Firmware Flow Chart
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Procedure
Write Tag
True
(USB or RS232)
Switch Interface
Initialize uPSD
Close RF
from PC?
Open RF
Connect
Get DLE
Start
Tag
Pass
Pass
Pass
Fail
False
Fail
Fail
Procedure
Read Tag
AI09748