optools/ref/ascii/tables/ctrl.adoc

| 0 | 000 | 00 | 00000000 | � | N/A | NUL | Null byte/character

| 1 | 001 | 01 | 00000001 |  | N/A | SOH | Start of heading

| 2 | 002 | 02 | 00000010 |  | N/A | STX | Start of text

| 3 | 003 | 03 | 00000011 |  | N/A | ETX | End text

| 4 | 004 | 04 | 00000100 |  | N/A | EOT | End of transmission

| 5 | 005 | 05 | 00000101 |  | N/A | ENQ | Enquiry

| 6 | 006 | 06 | 00000110 |  | N/A | ACK | Acknowledgement

| 7 | 007 | 07 | 00000111 |  | N/A | BEL | Terminal bell

| 8 | 010 | 08 | 00001000 |  | N/A | BS | Backspace

| 9 | 011 | 09 | 00001001 | 	 | N/A | HT | Horizontal tab (\t)

| 10 | 012 | 0a | 00001010 | 
 | N/A | LF | Line feed (\n)

| 11 | 013 | 0b | 00001011 |  | N/A | VT | Vertical tab

| 12 | 014 | 0c | 00001100 |  | N/A | FF | Form feed

| 13 | 015 | 0d | 00001101 | 
 | N/A | CR | Carriage return (\r)

| 14 | 016 | 0e | 00001110 |  | N/A | SO | Shift out (X-ON)

| 15 | 017 | 0f | 00001111 |  | N/A | SI | Shift in (X-OFF)

| 16 | 020 | 10 | 00010000 |  | N/A | DLE | Data line escape

| 17 | 021 | 11 | 00010001 |  | N/A | DC1 | Device control 1 (XON)

| 18 | 022 | 12 | 00010010 |  | N/A | DC2 | Device control 2

| 19 | 023 | 13 | 00010011 |  | N/A | DC3 | Device control 3 (XOFF)

| 20 | 024 | 14 | 00010100 |  | N/A | DC4 | Device control 4

| 21 | 025 | 15 | 00010101 |  | N/A | NAK | Negative acknowledgement

| 22 | 026 | 16 | 00010110 |  | N/A | SYN | Synchronous idle

| 23 | 027 | 17 | 00010111 |  | N/A | ETB | End transmit block

| 24 | 030 | 18 | 00011000 |  | N/A | CAN | Cancel

| 25 | 031 | 19 | 00011001 |  | N/A | EM | End medium

| 26 | 032 | 1a | 00011010 |  | N/A | SUB | Substitute

| 27 | 033 | 1b | 00011011 |  | N/A | ESC | Escape

| 28 | 034 | 1c | 00011100 |  | N/A | FS | File separator

| 29 | 035 | 1d | 00011101 |  | N/A | GS | Group separator

| 30 | 036 | 1e | 00011110 |  | N/A | RS | Record Separator

| 31 | 037 | 1f | 00011111 |  | N/A | US | Unit Separator