Advanced Card Systems Limited ACR1281S Benutzerhandbuch
ACR1281S
Advanced Card Systems Ltd.
Page 29 of 56
7. Automatic PICC Polling
Whenever the reader is connected to the PC, the PICC polling function will start the PICC scanning
to determine if a PICC is placed on / removed from the built-antenna.
We can send a command to disable the PICC polling function. The command is sent through the
PCSC Escape command interface.
to determine if a PICC is placed on / removed from the built-antenna.
We can send a command 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.
Register 0x23: Automatic PICC Polling (Default value = 0x8F)
CMD
Description
Description
Bit 0
Auto PICC Polling
1 = Enable; 0 =Disable
Bit 1
Turn off Antenna Field if no
PICC found
PICC found
1 = Enable; 0 =Disable
Bit 2
Turn off Antenna Field if the
PICC is inactive.
PICC is inactive.
1 = Enable; 0 =Disable
Bit 3
Activate the PICC when
detected.
detected.
1 = Enable; 0 =Disable
Bit 5 .. 4
PICC Poll Interval for PICC
<Bit 5 – Bit 4>
<0 – 0> = 250 msec
<0 – 1> = 500 msec
<1 – 0> = 1000 msec
<1 – 1> = 2500 msec
<1 – 0> = 1000 msec
<1 – 1> = 2500 msec
Bit 6
RFU
-
Bit 7
Enforce ISO14443A Part 4
1= Enable; 0= Disable.
• Enable Auto PICC Polling Function = {
E0 00 00 23 01 8F
}
• Disable Auto PICC Polling Function = {
E0 00 00 23 01 8E
}
• Read the existing status = {
E0 00 00 23 00
}; Response = {
E1 00 00 00 01 “Status”
}
Hints:
1. It is recommended to enable the option “Turn Off Antenna Field if the PICC is inactive”, so that
the “Inactive PICC” will not be exposed to the field all the time so as to prevent the PICC from
“warming up”.
2. The longer the PICC Poll Interval, the more efficient of energy saving. However, the response
time of PICC Polling will become longer.
The Idle Current Consumption in Power Saving Mode is
about 60mA, while the Idle Current Consumption in Non-Power Saving mode is about 130mA.
#Idle Current Consumption = PICC is not activated.
#Idle Current Consumption = PICC is not activated.
3. The reader will activate the ISO14443A-4 mode of the “ISO14443A-4 compliant PICC”
automatically. Type B PICC will not be affected by this option.
4. The JCOP30 card comes with two modes: ISO14443A-3 (MIFARE 1K) and ISO14443A-4
modes. The application has to decide which mode should be selected once the PICC is activated.
automatically. Type B PICC will not be affected by this option.
4. The JCOP30 card comes with two modes: ISO14443A-3 (MIFARE 1K) and ISO14443A-4
modes. The application has to decide which mode should be selected once the PICC is activated.
8. PICC Polling for specific PICC Types
The PICC polling function can be configured to detect “ISO14443 Type A PICCs” or “ISO14443
Type B PICCs” or both.
Type B PICCs” or both.