User's Manual

AET62 Design Specification
Version 1.0 8-DEC-09
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10
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18
AET62
5.0. Commands for Contact and Contactless Interfaces
Handling
The contactless interface is operating on the top of contact interface. Some Pseudo APDUs are
defined for contactless interface. If the reader finds that the APDUs are for contactless interface, the
APDUs will be routed to the contactless interface, otherwise, the APDUs will be routed to contact
interface. The Contact and Contactless Interfaces are able to be operating at the same time.
• The Pseudo APDU “Direct Transmit” is used for sending commands to the
contactless interface
Command Class INS P1 P2 Lc Data In
Direct
Transmit
0xFF 0x00 0x00 0x00 Number
of Bytes
to send
PN532_Contactless
Command
2. The Pseudo APDU “Get Response” is used for retrieving the responses from the contactless
interface.
Command Class INS P1 P2 Le
Get Response 0xFF 0xC0 0x00 0x00 Number of Bytes to
retrieve
If the reader finds that the APDU is in the form of “FF 00 00 00 Lc XX XX ..” or “FF C0 00 00 Le”, the
APDU will be routed to the contactless interface.
Also, one Pseudo APDU “Bi-Color LED and Buzzer Control” is defined for controlling the LED and
Buzzer.
Command Class INS P1 P2 Lc Data In
(4 Bytes)
Bi-Color and
Buzzer
LED Control
0xFF 0x00 0x40 LED
State
Control
0x04 Blinking Duration Control
Similarly, if the reader finds that the APDU is in the form of “FF 00 40 XX 04 XX XX XX XX”, the
APDU will be used for setting the LED and Buzzer State.
The contact interface must be activated in order to send commands to the contactless or LED
interface.