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Appendix 7: ASCII Function Key Mapping Table
ASCII Function
ASCII Value (HEX)
No Function Key Mapping
Function Key Mapping
NUL (Null char.)
00
Null
Ctrl+2
SOH (Start of Header)
01
Keypad Enter
Ctrl+A
STX (Start of Text)
02
Caps Lock
Ctrl+B
ETX (End of Text)
03
Null
Ctrl+C
EOT (End of Transmission)
04
Null
Ctrl+D
ENQ (Enquiry)
05
Null
Ctrl+E
ACK (Acknowledgment)
06
Null
Ctrl+F
BEL (Bell)
07
Enter
Ctrl+G
BS (Backspace)
08
Left Arrow
Ctrl+H
HT (Horizontal Tab)
09
Horizontal Tab
Ctrl+I
LF (Line Feed)
0A
Down Arrow
Ctrl+J
VT (Vertical Tab)
0B
Vertical Tab
Ctrl+K
FF (Form Feed)
0C
Delete
Ctrl+L
CR (Carriage Return)
0D
Enter
Ctrl+M
SO (Shift Out)
0E
Insert
Ctrl+N
SI (Shift In)
0F
Esc
Ctrl+O
DLE (Data Link Escape)
10
F11
Ctrl+P
DC1 (XON) (Device Control 1)
11
Home
Ctrl+Q
DC2 (Device Control 2)
12
Print Screen
Ctrl+R
DC3 (XOFF) (Device Control 3)
13
Backspace
Ctrl+S
DC4 (Device Control 4)
14
tab+shift
Ctrl+T
NAK (Negative Acknowledgment)
15
F12
Ctrl+U
SYN (Synchronous Idle)
16
F1
Ctrl+V
ETB (End of Trans. Block)
17
F2
Ctrl+W
CAN (Cancel)
18
F3
Ctrl+X
EM (End of Medium)
19
F4
Ctrl+Y
SUB (Substitute)
1A
F5
Ctrl+Z
ESC (Escape)
1B
F6
See the following table
FS (File Separator)
1C
F7
GS (Group Separator)
1D
F8
RS (Request to Send)
1E
F9
US (Unit Separator)
1F
F10