Document Version 1.00
Last revised on
Page 57 of 87
2020-04-10
Reference Manual for uTrust 3720F and uTrust 3721F Readers
Output
:
No response is returned for set state. For Get State 1 byte response is received.
Output buffer
NULL or current state
6.3.4.6.
CNTLESS_RF_SWITCH
This Escape command can be used to switch the RF field ON or OFF.
Input:
The first byte of input buffer contains the escape code.
The second byte either sets the mode or contains a code to retrieve the setting.
Byte0
Byte1
Output
Value
Description
Byte0
Escape
code(0x96)
0x00
Switch RF Field OFF No Output
0x01
Switch RF Field ON
No Output
0xFF
Get current field
state
0
– RF field is ON
1
– RF field is OFF
Output
:
No response is returned for set state. For Get State 1 byte response is received.
Output buffer
NULL or current state
6.3.4.7.
CNTLESS_CONTROL_848
This Escape command can be used to enable/disable 848kbps support as well as query whether
848kbps is currently enabled or disabled.
The RF communication with a user token will only switch to 848Kbps if the user token supports this
baud rate and provided automatic PPS is ON.
The input buffer shall contain 2 bytes
Byte0
Byte1
Description
0x9D
0x00
Disable 848Kbps support
0x01
Enable 848Kbps support
0xFF
Get current status on 848Kbps support
If B1 of the input buffer is 0x00 or 0x01 then the output buffer is
Output buffer
NULL