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TRF7970A
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SLOS743K – AUGUST 2011 – REVISED APRIL 2014
Table 6-26. ISO Control Register (0x01) (continued)
B2
iso_2
RFID / Card Emulation
NFC:
0 = NFC Normal Modes
1 = Card Emulation Mode
B1
iso_1
RFID / NFC bit rate
NFC:
0 = bit rate selection or card emulation selection, see Table 6-28
B0
iso_0
RFID / NFC bit rate
NFC:
0 = bit rate selection or card emulation selection, see Table 6-28
Table 6-27. ISO Control Register ISO_x Settings, RFID Mode
ISO_4
0
0
0
0
0
0
0
0
ISO_3
0
0
0
0
0
0
0
0
ISO_2
0
0
0
0
1
1
1
1
ISO_1
0
0
1
1
0
0
1
1
ISO_0
0
1
0
1
0
1
0
1
Protocol
ISO15693 low bit rate, 6.62 kbps, one subcarrier, 1 out of 4
ISO15693 low bit rate, 6.62 kbps, one subcarrier, 1 out of 256
ISO15693 high bit rate, 26.48 kbps, one subcarrier, 1 out of 4
ISO15693 high bit rate, 26.48 kbps, one subcarrier, 1 out of 256
ISO15693 low bit rate, 6.67 kbps, double subcarrier, 1 out of 4
ISO15693 low bit rate, 6.67 kbps, double subcarrier, 1 out of 256
ISO15693 high bit rate, 26.69 kbps, double subcarrier, 1 out of 4
ISO15693 high bit rate, 26.69 kbps, double subcarrier,
1 out of 256
Remarks
Default for reader
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
0
0
1
1
0
0
0
0
1
1
1
1
0
1
0
0
0
0
1
1
0
0
1
1
1
0
1
1
0
1
0
1
0
1
0
1
1
0
0
1
ISO14443A RX bit rate, 106 kbps
ISO14443A RX high bit rate, 212 kbps
ISO14443A RX high bit rate, 424 kbps
ISO14443A RX high bit rate, 848 kbps
ISO14443B RX bit rate, 106 kbps
ISO14443B RX high bit rate, 212 kbps
ISO14443B RX high bit rate, 424 kbps
ISO14443B RX high bit rate, 848 kbps
Reserved
Reserved
FeliCa 212 kbps
FeliCa 424 kbps
RX bit rate
RX bit rate
(1)
(1)
(1)
For ISO14443A/B, when bit rate of TX is different from RX, settings can be done in register 0x02 or 0x03.
Table 6-28. ISO Control Register ISO_x Settings,
NFC Mode (B5 = 1, B2 = 0) or Card Emulation (B5 = 1, B2 = 1)
ISO_1
0
0
1
1
ISO_0
0
1
0
1
NFC
(B5 = 1, B2 = 0)
N/A
106 kbps
212 kbps
424 kbps
Card Emulation
(B5 = 1, B2 = 1)
ISO14443A
ISO14443B
N/A
N/A
Copyright ? 2011–2014, Texas Instruments Incorporated
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