ASCII Code Table (Control) - TECHNICAL - NEILS RESOURCE WEB
| Summary of Content |
| A handy ASCII table reference. All covered here including the more characters section, consisting of special HTML codes. This was highly useful as I used these codes rather than language sets for the 'foreign' characters (e.g., ö and ç etc.) in my Portugal Travel Section. |
| Control Characters | |||||
| The ASCII character set - 128 characters (0 to 127 decimal, 0 to FF hexadecimal, and 0 to 177 octal). The first 32 values are non-printing control characters, such as Return and Line feed. These characters can be generated (on the keyboard) by holding down the Control (Ctrl) key while pressing the relevant character key shown in the Control Key column below. | |||||
| Char | Oct | Dec | Hex | Control-Key | Control Action |
| NUL | 0 | 0 | 0 | ^@ | Null character |
| SOH | 1 | 1 | 1 | ^A | Start of heading, = console interrupt |
| STX | 2 | 2 | 2 | ^B | Start of text, maintenance mode on HP console |
| ETX | 3 | 3 | 3 | ^C | End of text |
| EOT | 4 | 4 | 4 | ^D | End of transmission, not the same as ETB |
| ENQ | 5 | 5 | 5 | ^E | Enquiry, goes with ACK; old HP flow control |
| ACK | 6 | 6 | 6 | ^F | Acknowledge, clears ENQ logon hand |
| BEL | 7 | 7 | 7 | ^G | Bell, rings the bell... |
| BS | 10 | 8 | 8 | ^H | Backspace, works on HP terminals/computers |
| HT | 11 | 9 | 9 | ^I | Horizontal tab, move to next tab stop |
| LF | 12 | 10 | a | ^J | Line Feed |
| VT | 13 | 11 | b | ^K | Vertical tab |
| FF | 14 | 12 | c | ^L | Form Feed, page eject |
| CR | 15 | 13 | d | ^M | Carriage Return |
| SO | 16 | 14 | e | ^N | Shift Out, alternate character set |
| SI | 17 | 15 | f | ^O | Shift In, resume default character set |
| DLE | 20 | 16 | 10 | ^P | Data link escape |
| DC1 | 21 | 17 | 11 | ^Q | XON, with XOFF to pause listings; ":okay to send". |
| DC2 | 22 | 18 | 12 | ^R | Device control 2, block-mode flow control |
| DC3 | 23 | 19 | 13 | ^S | XOFF, with XON is TERM=18 flow control |
| DC4 | 24 | 20 | 14 | ^T | Device control 4 |
| NAK | 25 | 21 | 15 | ^U | Negative acknowledge |
| SYN | 26 | 22 | 16 | ^V | Synchronous idle |
| ETB | 27 | 23 | 17 | ^W | End transmission block, not the same as EOT |
| CAN | 30 | 24 | 17 | ^X | Cancel line, MPE echoes !!! |
| EM | 31 | 25 | 19 | ^Y | End of medium, Control-Y interrupt |
| SUB | 32 | 26 | 1a | ^Z | Substitute |
| ESC | 33 | 27 | 1b | ^[ | Escape, next character is not echoed |
| FS | 34 | 28 | 1c | ^\ | File separator |
| GS | 35 | 29 | 1d | ^] | Group separator |
| RS | 36 | 30 | 1e | ^^ | Record separator, block-mode terminator |
| US | 37 | 31 | 1f | ^_ | Unit separator |
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Last Updated04/03/2008 - Neils Resource Web - Technical - ASCII Code Table (Control)