Reference Manual for the CLOUD 370x F Contactless Desktop Readers
Document Version 1.0
Last revised on 2014-07-22
Page 76 of 82
6.3.4.23:
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
the 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 (NFC Parameter) 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
6.3.4.24:
CNTLESS_GET_P2P_EXTERNAL_RF_STATE
This Escape command is supported through the
READER_GENERIC_ESCAPE
message. This command is
used to check whether the external RF was reset after the reader was 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 which indicates the value of the parameter:
•
Bit 0 = 1 when a present external RF field is switched off.
•
Bit 1 = 1 when an external RF field is detected.
•
Bit 2 through Bit 7 always read as 0, and are reserved for future use.