ACR1255U-J1 – Reference Manual
Version V1.01
www.acs.com.hk
Page 60 of 73
6.6.8.
Set Automatic PICC Polling
This command is used for setting the reader’s polling mode.
Whenever the reader is connected to the computer, the PICC polling function will start the PICC
scanning to determine if a PICC is placed on/removed from the built-antenna.
A command may be sent to disable the PICC polling function. The command is sent through the
PCSC Escape command interface. To meet the energy saving requirement, special modes are
provided for turning off the antenna field whenever the PICC is inactive, or no PICC is found. The
reader will consume less current in power saving mode.
Note: The setting will be saved into non-volatile memory.
Set Automatic PICC Polling Format (6 bytes)
Command
Class
INS
P1
P2
Lc
Data In
Set Automatic PICC Polling
E0h
00h
00h
23h
01h
Polling Setting
Set Automatic PICC Polling Response Format (6 bytes)
Response
Class
INS
P1
P2
Le
Data Out
Result
E1h
00h
00h
00h
01h
Polling Setting
Polling Setting (1 byte)
Polling Setting
Mode
Description
Bit 0
Automatic PICC Polling
1 = Enable; 0 =Disable
Bit 1
Turn off Antenna Field if no
PICC found
1 = Enable; 0 =Disable
Bit 2
Turn off Antenna Field if the
PICC is inactive
1 = Enable; 0 =Disable
Bit 3
Activate the PICC when
detected.
1 = Enable; 0 =Disable
Bit 5 .. 4
PICC Poll Interval for PICC
<Bit 5 – Bit 4>
<0 – 0> = 250 ms
<0 – 1> = 500 ms
<1 – 0> = 1000 ms
<1 – 1> = 2500 ms
Bit 6
RFU
-
Bit 7
Enforce ISO14443A Part 4
1= Enable; 0= Disable
Note: Default value of Polling Setting = 8Fh.
