Document Version 1.0
Last revised on
2018-‐10-‐22
Page 50 of 79
Reference Manual for uTrust 5501 F Reader/Writer Module
6.3.3.6.
READER_LED_CONTROL_BY_FW
This escape command is used to enable/disable LED control by firmware.
Input:
The first byte of the input buffer contains the escape code. The second byte specifies if LED control by
firmware should be disabled or enabled.
Byte0
Byte1
Value
Description
Escape
code(0xB2)
0
Enable LED control by firmware
1
Disable LED control by firmware
FF
Get state:
0 – LED control by firmware enabled
1 – LED control by firmware disabled
Output:
No response is returned for set state. For get state, 1 byte response is received.
Output buffer
Current state
6.3.3.7.
READER_BUZZER_CONTROL
This escape command is used to enable/disable BUZZER.
Input:
The first byte of the input buffer contains the escape code. The second byte specifies if buzzer
disabled or enabled.
Byte0
Byte1
Value
Description
Escape
code(0x51)
0
Disable buzzer
1
Enable buzzer
FF
Get state:
0 – buzzer is disabled
1 – buzzer is enabled
Output:
1 byte response is always received.
Output buffer
Current state
0 – buzzer is disabled
1 – buzzer is enabled