ACR1255U-J1 – Reference Manual
Version V1.01
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Page 68 of 73
6.6.15.
Read Antenna Field Status
This command is used to check current Antenna Field Status.
Read Antenna Field Status Format (5 bytes)
Command
Class
INS
P1
P2
Lc
Read Antenna
Field Status
E0h
00h
00h
25h
00h
Read Antenna Field Status Response Format (6 bytes)
Response
Class
INS
P1
P2
Le
Data Out
Result
E1h
00h
00h
00h
01h
Status
Where:
Status
1 byte.
00h = PICC Power Off
01h = PICC Idle [Ready to Poll Contactless Tag, but not detected]
02h = PICC Ready [PICC Request (Ref to ISO 14443) Success, i.e.
Contactless Tag Detected]
03h = PICC Selected [PICC Select (Ref to ISO 14443) Success]
04h = PICC Activate [PICC Activation (Ref to ISO 14443) Success, Ready for
APDU Exchange]