ACR128 Dual Interface Smart Card Reader
5.2 ICC and PICC Interfaces Conflict Handling
There are three different card interfaces available for ACR128 – one contact card interface (ICC),
one contactless card interface (PICC) and one SAM card interface (SAM). Basically, all interfaces can
operate at the same time.
For example, if an ICC is inserted into the contact card acceptor, the ACR128U ICC interface will
be used to access the ICC. At the same time, the ACR128U PICC interface is available for PICC
access.
Fig 4.0 PICC and ICC Conflict Handling
5.2.1
Reader Interface Usage
Case 1:
If a normal PICC is inserted into the contact card acceptor, the ACR128U PICC
interface will be used.
Case 2:
If a Combi-Card, that supports both ICC and PICC interfaces, is inserted into the
contact card acceptor, the ACR128U ICC interface will be used while the ACR128U PICC
interface will be disabled. In such case, the Auto PCSC Polling Function for PICCs will be
disabled.
Case 3:
If a Hybrid card that consists of both ICC and PICC cards is inserted into the contact
card acceptor, both the ACR128U ICC and PICC interfaces can be used to access the Hybrid
card.
5.2.2
Exclusive Mode Setting
It may take some time for the reader to determine if a Combi-Card is inserted. To minimize the
card detection time, we can enable the “Enforce ICC & PICC Exclusive Mode” setting.
Page
14 of 36
ACR128 API
Version 1.7 May 2008
