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AS3909 Datasheet(PDF) 39 Page - ams AG

Part # AS3909
Description  13.56 MHz RFID Reader IC, ISO-14443 A/B
PDF  77 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3909 Datasheet(HTML) 39 Page - ams AG

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ams Datasheet, Confidential: 2013-Oct [3-02]
AS3909/AS3910 – 39
Appl icatio n I n f o rm a t i o n
Figure 27:
Configuration Register 5
Note: Default setting is set at power up and after Set Default command.
Address # 05: Configuration Register 5
Type: RW
Bit
Name
Def.
Function
Comments
7pmd
0
1
→ PM demodulation
0
→ AM demodulation
AM/PM demodulation selection
6am
0
0
→ OOK, 1 → AM
Valid for Transparent mode. For
ISO-14443 and NFC modes,
modulation type is set
automatically (ISO-14443A and NFC
is OOK, ISO-14443B is AM
see Figure 38)
5
Not used
4
3
2fifo_lr
0
0
→ 28, 1 → 24
FIFO water level for receive
1fifo_lt
0
0
→ 4, 1 → 8
FIFO water level for transmit
0Not used



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