User's Manual

ACR1281U
 Advanced Card Systems Ltd. Page 21 of 81
4. Buzzer Control
 Setting the Buzzer State:
Command = {E0 00 00 28 01 “Duration”} Unit = 10mS
00 = Turn off
01 ~ FE = Duration
FF = Turn o
Response = {E1 00 00 00 01 “Status”}
 Reading the existing Buzzer State:
Command = {E0 00 00 28 00}
Response = {E1 00 00 00 01 “Status”}
5. Default LED and Buzzer Behaviors
CMD MODE Description
Bit 0 ICC Activation Status
LED
To show the activation status of the
ICC interface.
1 = Enable; 0 =Disable
Bit 1 PICC Polling Status LED To show the PICC Polling Status.
1 = Enable; 0 =Disable
Bit 2 PICC Activation Status LED To show the activation status of the
PICC interface
1 = Enable; 0 =Disable
Bit 3 Card Insertion and Removal
Events Buzzer
To make a beep whenever a card
insertion or removal event is
detected. (For both ICC and PICC)
1 = Enable; 0 =Disabled
Bit 4 RFU RFU
Bit 5 RFU RFU
Bit 6 RFU RFU
Bit 7 Card Operation Blinking
LED
To blink the LED whenever the card
(PICC or ICC) is being accessed.
 Setting the LED and Buzzer behaviors:
Command = { E0 00 00 21 01 “CMD”}. Default value of CMD = 8F;
Response = {E1 00 00 00 01 “Status”}
 Reading the existing behaviors of the LED and Buzzer:
Command = { E0 00 00 21 00}
Response = {E1 00 00 00 01 “Status”}
Hints:
If you want to enjoy the silent environment, just set the CMD value to “87”.