Identiv uTrust 4711F - Cntless_Get_Set_Nfc_Params

Document Version 1.2
Last revised on
2017-09-26
Page 73 of 92
Reference Manual for uTrust 4701F and uTrust 4711F Readers
6.3.4.24. CNTLESS_GET_SET_NFC_PARAMS
This Escape command is supported through the READER_GENERIC_ESCAPE command.
During NFC operation, number parameters like DID, LRi, PSL_REQ_BRS and PSL_REQ_FSL can be
controlled from application.
Input:
To set the parameters the command syntax is:
Byte0
CLA
Byte1
INS
Byte2
P1
Byte3
P2
Byte4
Lc
Byte5
Byte6
Byte7
Byte 8
Le
0xFF
0x70
0x04
0xE6
0x04
0x04
(opcode)
0x01 –
SET
NFC
Parameter
Value
00
To get the parameters the command syntax is:
Byte0
CLA
Byte1
INS
Byte2
P1
Byte3
P2
Byte4
Lc
Byte5
Byte6
Byte7
Le
0xFF
0x70
0x04
0xE6
0x03
0x04
(opcode)
0x00 – GET
NFC Parameter
00
The value of byte 7 is interpreted from this table
Byte 7 Value
Description
0x00 – DID
Device Identification Number
0x01 – LRi
Length Reduction field
0x02 – PSL_REQ_BRS
BRS used in PSL_REQ
0x03 – PS_REQ_FSL
FSL used in PSL_REQ