PRODUCT REFERENCE GUIDE
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APPENDIX H
SCANCODE TABLES
Control character emulation selects from different scancode tables as listed in this
appendix. Each of the control character sets below are detailed by interface type in the
tables. These apply to USB Keyboard platforms.
Control Character 00 :
Characters from 00 to 0x1F are sent as control character
Ctrl+Keys, special keys are located from 0x80 to 0xA1.
Control Character 01 :
Characters from 00 to 0x1F are sent as control character
Ctrl+Capital Key, special keys are located from 0x80 to 0xA1.
Control Character 02 :
Special keys are located from 00 to 0x1F and characters from
0x80 to 0xFE are intended as an extended ASCII table.
Single Press and Release Keys
In the following tables, Ar
↓
means Alt right pressed and Ar
↑
means Alt right released
and so on. Definitions for other keys are Al (Alt left), Cr (Control Right) Cl (Control Left)
Sh (shift). This method can be used for combining Alt, Control or Shift with other keys.
Example: Consider a Control character set to 00. If AA is required before sending
a label to the host, it could be done by setting three Prefix keys in this way: 0x99 0x41
0x9A.
