UIC680 Programmer’s Manual
UDN PM063-U Rev. 4
4-10
The request command code is ISO14443 type A. It can be either 26 (REQA) or 52
(WUPA)
NOTE If the [Req command] field does not appear in the request command, reader
will set the request mode to WUPA automatically.
b[AFI, 1 byte][Parameter, 1 byte] - If reader is set to ISO14443 type B
[AFI](optional) - Binary hex (00h to FFh), please refer to ISO 14443-3 for the detailed
information
[Parameter](optional) - Binary hex (00h to FFh), please refer to 14443 for the detailed
information.
NOTE If the [AFI] and [Parameter] do not appear in the request command, reader
will set the request mode to WUPB automatically.
RESPONSE ATQA (2 bytes, type A, Binary Hex) or ATQB (16 bytes, type B, Binary
Hex) if command executed successfully
‘*’ – No card response or No power on the antenna
•
c (63H) – Anticollision(type A)/Slot-Marker(type B)
COMMENT In type A mode, the reader sends the Anti-collision command to the card.
In type B mode, the reader sends the Slot-Marker command to the card.
c – ISO 14443 type A
c[APn] – ISO14443 type B
[APn] – Anti-collision prefix byte.(type B only)
NOTE
Slot-Marker is not a mandatory command for type B card.
RESPONSE If the command executed successfully, the reader returns
PICC serial number for type A (Binary Hex)
or
PICC send ATQB (12 bytes, Binary Hex) for type B
‘*’ – No card response or or No power on the antenna
‘!’
–
Bad
parameter
•
f (66H) – Select(type A)/Attrib(type B)
COMMENT In type A mode, the reader sends the SELECT command to the card.
In type B mode, the reader sends the ATTRIB command to the card.