AS3910-BQFP AMSCO [austriamicrosystems AG], AS3910-BQFP Datasheet - Page 28

• Manufacturer Part Number: AS3910-BQFP
• Description: 13.56 MHz RFID Reader IC, ISO-14443 A/B
• Manufacturer: AMSCO [austriamicrosystems AG]

AS3910
Data Sheet - A p p l i c a t i o n I n f o r m a t i o n
8.11.3 Interrupt Register and Associated Registers
Table 17. Mask Interrupt Register
Note: Default setting is set at power up and after Set Default command.
Table 18. Interrupt Register
Note: At power up and after Set Default command, content of this register is set to 0.
Table 19. FIFO Status Register
www.austriamicrosystems.com/HF_RFID_Reader/AS3910
Bit
Bit
Bit
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
After Interrupt register read, its content is set to 0
M_osc
fifo_b5
fifo_b4
fifo_b3
fifo_b2
fifo_b1
fifo_b0
Name
M_nfc
M_rxs
M_txe
M_err
M_crc
M_col
Name
Name
M_wl
I_osc
I_nfc
I_rxs
I_txe
I_crc
I_err
I_col
I_wl
Address # 09: FIFO Status Register
Address # 08: Interrupt Register
INTR when oscillator frequency is stable
INTR due to nfc event
INTR due to FIFO water level
INTR due to end of receive
INTR due to end of transmission
INTR due to error in receive data coding
INTR due to CRC error
INTR due to bit collision
Number of bytes (binary coded) in the FIFO which
were not read out
Address # 07: Mask Interrupt Register
Def.
0
0
0
0
0
0
0
0
mask INTR when oscillator frequency is stable
mask INTR due to nfc event
mask INTR due to FIFO water level
mask INTR due to end of receive
mask INTR due to end of transmission
mask INTR due to error in receive data coding
mask INTR due to CRC error
mask INTR due to bit collision
Function
Function
Function
Revision 2.3
Set after enable
Set when nfc_t is 1 and en=0 informing that an RF field has
been detected,
Set when transmission could not be done due to detection of
RF field during RF Collision Avoidance
Set during receive, informing that FIFO is almost full and has
to be read out.
Set during transmit, informing that FIFO is almost empty and
that additional data has to be sent.
This includes parity error and framing error
Valid only for ISO-14443A
Valid range is from 000000 to 100000
Comments
Comments
type: R
type: R
Comments
type: RW
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