Document Version 1.2
Last revised on
2017-09-26
Page 74 of 92
Reference Manual for uTrust 4701F and uTrust 4711F Readers
6.3.4.25.
CNTLESS_GET_P2P_EXTERNAL_RF_STATE
This Escape command is supported through the READER_GENERIC_ESCAPE message.
This command is used to check if external RF is reset after the reader got detected in target mode.
Input:
Byte0
CLA
Byte1
INS
Byte2
P1
Byte3
P2
Byte4
Lc
Byte5
Le
0xFF
0x70
0x04
0xE6
0x01
0x06 (opcode)
00
Output:
If the command is successful, a single byte is returned. This byte indicates the value of parameter.
Bit 0 => Set to logic 1, when a present external RF field is switched off
Bit 1 => Set to logic 1, when an external RF field is detected.
Bit 2 to Bit 7 => RFU bits always read as 0