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IEC608 Closed Caption Control codes

Source: ANSI/CTA-608-E (Annex F, FCC Rules Excerpts)


Table 49 — Special Characters

Note: Each hex value must be preceded by 0x11 (Data Channel 1) or 0x19 (Data Channel 2).

Hex Glyph Description
30 ® Registered mark
31 ° Degree sign
32 ½ One-half
33 ¿ Inverted question mark
34 Trademark
35 ¢ Cents sign
36 £ Pound sterling
37 Music note
38 à Lower-case a with grave
39 Transparent space
3A è Lower-case e with grave
3B â Lower-case a with circumflex
3C ê Lower-case e with circumflex
3D î Lower-case i with circumflex
3E ô Lower-case o with circumflex
3F û Lower-case u with circumflex

Table 50 — Standard Characters

0x20–0x3F

Hex Glyph Description
20 Space
21 ! Exclamation mark
22 " Quotation mark
23 # Number sign
24 $ Dollar sign
25 % Percent sign
26 & Ampersand
27 ' Apostrophe
28 ( Open parenthesis
29 ) Close parenthesis
2A á Lower-case a with acute
2B + Plus sign
2C , Comma
2D - Hyphen
2E . Period
2F / Slash
30–39 0–9 Digits
3A : Colon
3B ; Semicolon
3C < Less-than
3D = Equals
3E > Greater-than
3F ? Question mark

0x40–0x5F (Uppercase)

Hex Glyph Description
40 @ At sign
41–5A A–Z Upper-case letters
5B [ Open bracket
5C é Lower-case e with acute
5D ] Close bracket
5E í Lower-case i with acute
5F ó Lower-case o with acute

0x60–0x7F (Lowercase & Symbols)

Hex Glyph Description
60 ú Lower-case u with acute
61–7A a–z Lower-case letters
7B ç Lower-case c with cedilla
7C ÷ Division sign
7D Ñ Upper-case N with tilde
7E ñ Lower-case n with tilde
7F Solid block

Table 51 — Mid-Row Codes

Data Ch 1 Data Ch 2 Attribute
11 20 19 20 White
11 21 19 21 White + underline
11 22 19 22 Green
11 23 19 23 Green + underline
11 24 19 24 Blue
11 25 19 25 Blue + underline
11 26 19 26 Cyan
11 27 19 27 Cyan + underline
11 28 19 28 Red
11 29 19 29 Red + underline
11 2A 19 2A Yellow
11 2B 19 2B Yellow + underline
11 2C 19 2C Magenta
11 2D 19 2D Magenta + underline
11 2E 19 2E Italics
11 2F 19 2F Italics + underline

Table 52 — Miscellaneous Control Codes

Data Ch 1 Data Ch 2 Mnemonic Description
14 20 1C 20 RCL Resume Caption Loading
14 21 1C 21 BS Backspace
14 22 1C 22 AOF Reserved (Alarm Off)
14 23 1C 23 AON Reserved (Alarm On)
14 24 1C 24 DER Delete to End of Row
14 25 1C 25 RU2 Roll-Up Captions (2 rows)
14 26 1C 26 RU3 Roll-Up Captions (3 rows)
14 27 1C 27 RU4 Roll-Up Captions (4 rows)
14 28 1C 28 FON Flash On
14 29 1C 29 RDC Resume Direct Captioning
14 2A 1C 2A TR Text Restart
14 2B 1C 2B RTD Resume Text Display
14 2C 1C 2C EDM Erase Displayed Memory
14 2D 1C 2D CR Carriage Return
14 2E 1C 2E ENM Erase Non-Displayed Memory
14 2F 1C 2F EOC End of Caption (Flip Memories)
17 21 1F 21 TO1 Tab Offset 1 Column
17 22 1F 22 TO2 Tab Offset 2 Columns
17 23 1F 23 TO3 Tab Offset 3 Columns

Table 53 — Preamble Address Codes (PACs)

First Byte (Row Selection)

Row Data Ch 1 Data Ch 2
1 11 19
2 11 19
3 12 1A
4 12 1A
5 15 1D
6 15 1D
7 16 1E
8 16 1E
9 17 1F
10 17 1F
11 10 18
12 13 1B
13 13 1B
14 14 1C
15 14 1C

Second Byte (Color / Indent)

Attribute Even Rows Odd Rows
White 40 60
White + underline 41 61
Green 42 62
Green + underline 43 63
Blue 44 64
Blue + underline 45 65
Cyan 46 66
Cyan + underline 47 67
Red 48 68
Red + underline 49 69
Yellow 4A 6A
Yellow + underline 4B 6B
Magenta 4C 6C
Magenta + underline 4D 6D
White italics 4E 6E
White italics + underline 4F 6F
Indent 0 50 70
Indent 4 52 72
Indent 8 54 74
Indent 12 56 76
Indent 16 58 78
Indent 20 5A 7A
Indent 24 5C 7C
Indent 28 5E 7E

Note: All indent PACs force white as the color attribute.