AS3910-BQFP 查看數據表（PDF） - austriamicrosystems AG
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AS3910-BQFP Datasheet PDF : 47 Pages
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AS3910
Data Sheet - Application Information
8.11.1 Main Registers
Table 10. ISO Mode Definition Register
Address # 00: ISO Mode Definition Register
Bit
Name
Def.
Function
7
nfc
0 1=NFC, 0=ISO-14443
6
b_a
0 1=ISO-14443B, 0=ISO-14443A
5
tx_rate2
0
tx_rate2 tx_rate1 tx_rate0
4
tx_rate1
0
0
0
0
0
0
1
0
1
0
3
tx_rate0
0
0
1
1
1
x
x
type: RW
Comments
NFC means NFCIP-1,
106 kbps active communication mode
Applicable in case nfc=0
bit rate
106kb/s
212kb/s
424kb/s
848kb/s
Selects ISO-14443 data rate for transmit,
Applicable in case nfc=0
RFU
2
rx_rate2
0
rx_rate2 rx_rate1 rx_rate0 bit rate
1
rx_rate1
0
0
0
0
106kb/s
0
0
1
212kb/s Selects ISO-14443 data rate for receive,
0
1
0
424kb/s Applicable in case nfc=0
0
rx_rate0
0
0
1
1
848kb/s
1
x
x
RFU
Note: In case nfc=1, then both transmit and receive data rates are set to 106kbps independent of TX and RX setting. Default setting is set at
power up and after Set Default command.
Table 11. Operation Control Register
Address # 01: Operation Control Register
type: RW
Bit
Name
Def.
Function
Comments
7
en
0
en=1 enables oscillator and regulator (Ready
mode)
Is internally ORed with the EN pin
6
rx_en
0 rx_en=1 enables receiver operation
5
rx_lp
0 rx_lp=1 low power receiver operation
Receive consumption is reduced
4
tx_en
0 tx_en=1 enables RF output
3
nfc_t
0 nfc_t =1 enables Initial NFC Target mode
At the moment RF field is detected, interrupt is
sent.
2
1
Not used
0
Note: Receive low power operation sacrifices the input sensitivity for low consumption. If Rx consumption is reduced from 10mA to 5mA, then
a 10mA reader operation is possible. Default setting is set at power up and after Set Default command.
www.austriamicrosystems.com/HF_RFID_Reader/AS3910
Revision 2.3
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