65 lines
2.4 KiB
HTML
65 lines
2.4 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<HTML>
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<HEAD>
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<META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9">
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<TITLE>Keyboard scancodes: Special keyboards - Amstrad/Schneider keyboards</TITLE>
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<LINK HREF="scancodes-4.html" REL=next>
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<LINK HREF="scancodes-2.html" REL=previous>
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<LINK HREF="scancodes.html#toc3" REL=contents>
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<BODY>
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<A HREF="scancodes-4.html">Next</A>
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<A HREF="scancodes-2.html">Previous</A>
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<A HREF="scancodes.html#toc3">Contents</A>
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<HR>
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<H2><A NAME="s3">3. Special keyboards - Amstrad/Schneider keyboards</A></H2>
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<P><I>Since IBM had patented their keyboard design,
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Amstrad developed an entirely different keyboard.</I>
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<P>
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<H2><A NAME="ss3.1">3.1 Amstrad/Schneider PC1512</A>
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</H2>
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<P>The
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<A HREF="amstrad.jpg">Amstrad keyboard</A>
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is entirely incompatible with XT and AT keyboards, and can be used only
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on an Amstrad; conversely, no other keyboard will work on an older Amstrad.
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This keyboard has a Del key on the keypad, and both Del-> and Del<- keys
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above the Enter key. The Del-> key has scancode <B>70</B>.
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Left of the Enter key a PrtSc/* key.
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There is an additional Enter key with scancode <B>74</B>.
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It is possible to connect a mouse and/or joystick to the keyboard,
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and then these devices also yield scancodes:
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<B>77</B> (joystick button 1), <B>78</B> (joystick button 2),
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<B>79</B> (joystick right), <B>7a</B> (joystick left),
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<B>7b</B> (joystick up), <B>7c</B> (joystick down),
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<B>7d</B> (mouse right), <B>7e</B> (mouse left).
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<P>
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<FIGURE>
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<EPS FILE="absent">
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<IMG SRC="amstrad-s.jpg">
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</FIGURE>
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<P>
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<H2><A NAME="ss3.2">3.2 Amstrad/Schneider other models</A>
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</H2>
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<P>John Elliott adds:
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<P>The above only mentions the PC1512/PC1640 style of keyboard.
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Later Amstrad XTs (PPC512, PPC640, PC20, PC200, PC2086, PC3086) used a
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102-key keyboard with the same layout and scancodes as a normal 102-key XT
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keyboard. This design is not only incompatible with normal XT and AT
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keyboards, it's also incompatible with the PC1512 keyboard. The joystick
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socket is no longer present, but mouse button clicks are still handled by
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the keyboard, with the same scancodes <B>7d</B> (right button) and
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<B>7e</B> (left button).
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<P>On the PPC512, PPC640, PC20 and PC200, the keyboard is in the same box as
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the motherboard, and is connected directly to it by ribbon cable.
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<P>
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<P>
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<HR>
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<A HREF="scancodes-4.html">Next</A>
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<A HREF="scancodes.html#toc3">Contents</A>
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