ACR122T – Application Programming Interface
Version 2.02
www.acs.com.hk
Page 26 of 45
6.5. Set the PICC Operating Parameter
This is used to set the PICC Operating Parameter of the reader.
Command Format (5 Bytes)
Command
Class
INS
P1
P2
Le
Set PICC
Operating
Parameter
0xFFh
0x00h
0x51h
New PICC Operating
Parameter
0x00h
Response Format (1 Byte)
Response
Data Out
Result
PICC Operating Parameter
Bit
Parameter
Description
Option
7
Auto PICC Polling
To enable the PICC Polling
1 = Enable
0 = Disable
6
Auto ATS Generation
To issue ATS Request whenever an
ISO14443-4 Type A tag is activated
1 = Enable
0 = Disable
5
Polling Interval
To set the time interval between
successive PICC Polling.
1 = 250 ms
0 = 500 ms
4
FeliCa 424K
The Tag Types to be detected
during PICC Polling.
1 = Detect
0 = Skip
3
FeliCa 212K
1 = Detect
0 = Skip
2
Topaz
1 = Detect
0 = Skip
1
ISO 14443 Type B
1 = Detect
0 = Skip
0
ISO 14443 Type A
#To detect the Mifare
Tags, the Auto ATS
Generation must be
disabled first.
1 = Detect
0 = Skip
Table 9
: PICC Operating Parameter (Default Value = FFh)