SCR331-DI Product Technical Manual
4.0 Software
Modules
4.1 Firmware
Device firmware that supports USB interfaces is provided.
On USB, the firmware implements dual slot architecture – one slot for the CONTACT interface
and another for the CONTACT-LESS interface.
4.2 USB Drivers
Two driver packages have been provided – a SINGLE driver package and a DUAL driver package
SINGLE DRIVER PACKAGE
Only one driver gets loaded and the same driver handles both the CONTACT and CONTACT-LESS
operations. However though we have a dual slot firmware EITHER one of CONTACT or
CONTACTLESS are be accessed at a time.
DUAL DRIVER PACKAGE
Two drivers are loaded and two readers are seen at the host level.
SCM Microsystems Inc. SCR331-DI Smart Card Reader
It is a CONTACT-ONLY reader.
SCM Microsystems Inc. SCR331-DI USB ContactlessReader
It is a CONTACT- LESS-ONLY reader.
The advantage is that two slots of the reader can be accessed simultaneously. But as discussed in
section 4.2.2 LED behavior, when the firmware is configured in the mode, where the RF field is
powered OFF during CONTACT card presence, the real Dual slot feature is lost.
4.3 Utilities
4.3.1 Installation
SCM provides Install Shield Installer for Windows to install the product. The SCM drivers as well as
the utilities can be installed with the help of this installer.
4.3.2 DFU Utility
DFU utilities/drivers for dynamic Device Firmware Upgrade (DFU) are shipped with the device for
USB interface. DFU utilities/drivers are capable of performing a DFU under the following operating
systems.
Operating System Support
WIN98 Yes
WINME Yes
WIN2000 Yes
WINXP Yes
IND.SCR331-DI.MANUAL.VER.1.8
VER1.8
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