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SLOS732G – JUNE 2011 – REVISED MARCH 2020
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Detailed Description
Copyright © 2011–2020, Texas Instruments Incorporated
6.14.1.1.2 ISO Control Register (0x01)
describes the bit fields of the ISO Control register. This register controls the selection of ISO
standard protocol, direct mode, and receive CRC.
Default Value:
0x02 (ISO/IEC 15693 high bit rate, one subcarrier, 1 out of 4), reset at EN = L or POR = H
Table 6-17. ISO Control Register (0x01)
BIT NO.
BIT NAME
FUNCTION
DESCRIPTION
B7
rx_crc_n
CRC receive selection
1 = No RX CRC (CRC not present in the response)
0 = RX CRC (CRC is present in the response)
B6
dir_mode
Direct mode type
selection
0 = Direct mode 0
1 = Direct mode 1
B5
rfid
RFID mode
0 = RFID mode
1 = Reserved (should be set to 0)
B4
iso_4
RFID
See
for B0:B4 settings based on the ISO protocol that the
application requires.
B3
iso_3
RFID
B2
iso_2
RFID
B1
iso_1
RFID
B0
iso_0
RFID
(1)
For ISO/IEC 14443 A or B, when bit rate of TX is different from RX, settings can be made in register 0x02 or 0x03.
Table 6-18. ISO Control Register: ISO_4 to ISO_0
iso_4
iso_3
iso_2
iso_1
iso_0
PROTOCOL
REMARKS
0
0
0
0
0
ISO/IEC 15693 low bit rate, 6.62 kbps, one subcarrier, 1 out of 4
0
0
0
0
1
ISO/IEC 15693 low bit rate, 6.62 kbps, one subcarrier, 1 out of 256
0
0
0
1
0
ISO/IEC 15693 high bit rate, 26.48 kbps, one subcarrier, 1 out of 4
Default for
reader
0
0
0
1
1
ISO/IEC 15693 high bit rate, 26.48 kbps, one subcarrier, 1 out of 256
0
0
1
0
0
ISO/IEC 15693 low bit rate, 6.67 kbps, double subcarrier, 1 out of 4
0
0
1
0
1
ISO/IEC 15693 low bit rate, 6.67 kbps, double subcarrier, 1 out of 256
0
0
1
1
0
ISO/IEC 15693 high bit rate, 26.69 kbps, double subcarrier, 1 out of 4
0
0
1
1
1
ISO/IEC 15693 high bit rate, 26.69 kbps, double subcarrier, 1 out of 256
0
1
0
0
0
ISO/IEC 14443 A RX bit rate, 106 kbps
RX bit rate
(1)
0
1
0
0
1
ISO/IEC 14443 A RX high bit rate, 212 kbps
0
1
0
1
0
ISO/IEC 14443 A RX high bit rate, 424 kbps
0
1
0
1
1
ISO/IEC 14443 A RX high bit rate, 848 kbps
0
1
1
0
0
ISO/IEC 14443 B RX bit rate, 106 kbps
RX bit rate
(1)
0
1
1
0
1
ISO/IEC 14443 B RX high bit rate, 212 kbps
0
1
1
1
0
ISO/IEC 14443 B RX high bit rate, 424 kbps
0
1
1
1
1
ISO/IEC 14443 B RX high bit rate, 848 kbps
1
1
0
1
0
FeliCa 212 kbps
1
1
0
1
1
FeliCa 424 kbps