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SECTION 5. USB COMMUNICATIONS
This device conforms to the USB specification revisions 2.0 and 1.1. This device also conforms
with the Human Interface Device (HID) class specification versions 2.0 and 1.1. The device
communicates to the host as a HID keyboard device. The latest versions of the Windows
operating systems come with a standard Windows USB HID keyboard driver. This section
pertains only to the HID Keyboard Emulation configuration. For character mapping and character
conversion, you may reference appendices D, E, and F for ASCII codes and USB Usage ID
definitions.
This is a full speed USB device. This device has a number of programmable configuration
properties. These properties are stored in non-volatile memory. These properties can be
configured at the factory or by the end user. The device has an adjustable endpoint descriptor
polling interval value that can be set to any value in the range of 1ms to 255ms. This property
can be used to speed up or slow down the keyboard data transfer rate. The device also has an
adjustable serial number descriptor. More details about these properties can be found later in this
document in the command section.
The device will go into suspend mode when directed to do so by the host. The device will wake
up from suspend mode when directed to do so by the host. The device does not support remote
wakeup.
This device is powered from the USB bus. The vendor ID is 0x0801 and the product ID is
0x2251.
HOST APPLICATIONS
If your MICRSafe was configured as an HID device, then it can be used with existing
applications that acquire card data via keyboard input. Also, applications that communicate with
this device can be easily developed. These applications can be developed using compilers such
as Microsoft’s Visual Basic or Visual C++. To demonstrate this device’s card reading
capabilities, any application that accepts keyboard input (for instance Windows Notepad) can be
used.
Содержание MICRSafe
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