Epson IR-320, Техническое справочное руководство

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Rev. C Utilities 4-5
IR-320 Technical Reference Manual
Keyboard Firmware Related Utilities (MSR, Key Lock, 28-key Keyboard)
These include utilities related to the keyboard firmware. These utilities are used to set the MSR,
the definition data for the Key Lock, and the definition data for the 28-key keyboard.
Keyboard Firmware
What is the keyboard firmware?
The IR-320 is equipped with a special POS device keyboard controller LSI, and the following
devices are supported by the firmware of this keyboard controller.
• Key Lock of IR-320
• MSR (DM-MR123)
• 28-key keyboard (DM-KR028)
• PS/2 keyboard
• Extemally connected POS keyboard
The input data from these devices is converted into the scan code of the keyboard according to
the code conversion table in the keyboard firmware, all of which is then handled as keyboard
input on the system side.
The code conversion table has the key definition data for converting the setting values and input
data of each device into a scan code, which can be rewritten by the utility of each device.
However, the externally connected POS keyboard must be set by using a special tool, and the
setting values are then written into the memory in the keyboard.
The following operations can be performed by having the IR-320 manage the code conversion
table:
• Key definition data and other data that may change frequently can be managed
separately from applications. This will reduce the number of application development
steps.
MSR
28 keyboard
PS/2 keyboard
POS keyboard