ACS ACR1283L - Manual (Page 34)

ACR1283L – Reference Manual [email protected]
Version 1.00 www.acs.com.hk
Page 34 of 55
5.4.4. Set Automatic PICC Polling
This command is used to set the reader’s polling mode.
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-in antenna.
We can send a command to disable the PICC polling function. The command is sent through the
PC/SC 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.
Set Automatic PICC Polling Format
Command Class INS P1 P2 Lc Data In
Set Automatic PICC Polling 0xE0h 0x00h 0x00h 0x23h 0x01h Polling Setting
Set Automatic PICC Polling Response Format
Response Class INS P1 P2 Le Data Out
Result 0xE1h 0x00h 0x00h 0x00h 0x01h Polling Setting
Where:
Polling Setting: Default value = 8Fh (1 Byte)
Polling Setting Description Description
Bit 0 Auto 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 RFU RFU
Bit 5 – 4 PICC Polling 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 RFU
Bit 7 Enforce ISO14443A Part 4
1 = Enable
0 = Disable
Notes:
1. It is recommended to enable the option “Turn off Antenna Field is 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