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Keyboard Function
Keyboard Model Cross Reference
summarizes the keyboard models, their defined protocol,
Table C-2
scancode set, and some unique features. The remaining tables in this
chapter provide the function key maps associated with each of the scan-
code sets.
Table C-1. USB Function Key Usage Map
ASCII
Key value
00
NUL
01
SOH
02
STX
03
ETX
04
EOT
05
ENQ
06
ACK
07
BEL
08
BS
09
HT
0A
LF
0B
VT
0C
FF
0D
CR
0E
SO
0F
SI
10
DLE
11
DC1
12
DC2
Product Reference Guide
Key Mappings
Usage Name
ALT right Make
ALT right Break
F11
F12
GUI right Make
GUI right Break
CTRL right Make
CTRL right Break
BS
TAB right
RIGHT arrow (inner keypad)
TAB left
Enter (right keypad)
CR
INSERT (inner keypad)
PAGE UP (inner keypad)
PAGE DOWN (inner keypad)
HOME (inner keypad)
LEFT arrow (inner keypad)
Appendix C
Modifier/
Scancode
40h 00h
1
00h 00h
00h 44h
00h 45h
80h 00h
1
00h 00h
10h 00h
1
00h 00h
00h 2Ah
00h 2Bh
00h 4Fh
02h 2Bh
00h 58h
00h 28h
00h 49h
00h 4Bh
00h 4Eh
00h 4Ah
00h 50h
C-1
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