<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.3">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="50" y2="0" width="0" layer="20"/>
<wire x1="50" y1="0" x2="50" y2="50" width="0" layer="20"/>
<wire x1="50" y1="50" x2="0" y2="50" width="0" layer="20"/>
<wire x1="0" y1="50" x2="0" y2="0" width="0" layer="20"/>
<text>A17</text>
<text>A18</text>
<text>A19</text>
<text>R/W</text>
<text>74*02</text>
<text>PLUS</text>
<text>PLUS</text>
<text>COM</text>
<text>COM</text>
<text>512K</text>
<text>512K</text>
<text>LO</text>
<text>HI</text>
<text>ALL</text>
<text>PLUS</text>
<text>512K</text>
<text>COMPACT MAC ROM ADAPTER 1.1</text>
<text>WWW.BIGMESSOWIRES.COM</text>
<text>PLUS</text>
<text>512K</text>
<text>ALL</text>
<text>PLUS: WIRE A18-A19,R/W TO CPU</text>
<text>128K,512K: WIRE A17-A19,R/ W TO CPU</text>
<text>ALL: SOLDER MACHINED HEADERS ON</text>
<text>BOTTOM WHERE SHOWN, SOCKETS ON TOP</text>
<text>ADD TWO JUMPERS BETWEEN</text>
<text>COM AND PLUS / 512K WHERE SHOWN</text>
</plain>
<libraries>
<library name="big-mess-o-wires">
<description>&lt;h3&gt;Big Mess o' Wires Eagle Library&lt;/h3&gt;</description>
<packages>
<package name="DIL32">
</package>
<package name="DIL28-6-NOSILK">
</package>
</packages>
</library>
<library name="74xx-eu">
<description>&lt;b&gt;TTL Devices, 74xx Series with European Symbols&lt;/b&gt;&lt;p&gt;
Based on the following sources:
&lt;ul&gt;
&lt;li&gt;Texas Instruments &lt;i&gt;TTL Data Book&lt;/i&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;Volume 1, 1996.
&lt;li&gt;TTL Data Book, Volume 2 , 1993
&lt;li&gt;National Seminconductor Databook 1990, ALS/LS Logic
&lt;li&gt;ttl 74er digital data dictionary, ECA Electronic + Acustic GmbH, ISBN 3-88109-032-0
&lt;li&gt;http://icmaster.com/ViewCompare.asp
&lt;/ul&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="SO14">
<description>&lt;b&gt;Small Outline package&lt;/b&gt; 150 mil</description>
</package>
</packages>
</library>
<library name="pinhead">
<description>&lt;b&gt;Pin Header Connectors&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="1X03">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="1X04">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="ROM_LOW" library="big-mess-o-wires" package="DIL32" value="29F040B"/>
<element name="SOCKET_LOW" library="big-mess-o-wires" package="DIL28-6-NOSILK" value="SOCKET-DIL28"/>
<element name="NOR" library="74xx-eu" package="SO14" value="74HCT02D"/>
<element name="SOCKET_HI_PLUS" library="big-mess-o-wires" package="DIL28-6-NOSILK" value="SOCKET-DIL28"/>
<element name="ROM_HI" library="big-mess-o-wires" package="DIL32" value="29F040B"/>
<element name="JP1" library="pinhead" package="1X03" value=""/>
<element name="JP2" library="pinhead" package="1X03" value=""/>
<element name="JP3" library="pinhead" package="1X04" value=""/>
<element name="SOCKET_HI_512K" library="big-mess-o-wires" package="DIL28-6-NOSILK" value="SOCKET-DIL28">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="GND">
<contactref element="NOR" pad="7"/>
<contactref element="SOCKET_LOW" pad="14"/>
<contactref element="SOCKET_HI_PLUS" pad="14"/>
<contactref element="ROM_LOW" pad="16"/>
<contactref element="NOR" pad="5"/>
<contactref element="NOR" pad="6"/>
<contactref element="ROM_HI" pad="16"/>
<contactref element="JP2" pad="1"/>
<contactref element="SOCKET_HI_512K" pad="14"/>
</signal>
<signal name="VCC">
<contactref element="NOR" pad="14"/>
<contactref element="SOCKET_LOW" pad="28"/>
<contactref element="SOCKET_HI_PLUS" pad="28"/>
<contactref element="ROM_LOW" pad="32"/>
<contactref element="ROM_HI" pad="32"/>
<contactref element="SOCKET_HI_512K" pad="28"/>
</signal>
<signal name="CPU_A16">
<contactref element="SOCKET_HI_PLUS" pad="1"/>
<contactref element="ROM_HI" pad="3"/>
<contactref element="SOCKET_HI_512K" pad="1"/>
</signal>
<signal name="CPU_A13">
<contactref element="SOCKET_HI_PLUS" pad="2"/>
<contactref element="ROM_HI" pad="4"/>
<contactref element="SOCKET_HI_512K" pad="2"/>
</signal>
<signal name="CPU_A8">
<contactref element="SOCKET_HI_PLUS" pad="3"/>
<contactref element="ROM_HI" pad="5"/>
<contactref element="SOCKET_HI_512K" pad="3"/>
</signal>
<signal name="CPU_A7">
<contactref element="SOCKET_HI_PLUS" pad="4"/>
<contactref element="SOCKET_HI_512K" pad="4"/>
<contactref element="ROM_HI" pad="6"/>
</signal>
<signal name="CPU_A6">
<contactref element="SOCKET_HI_PLUS" pad="5"/>
<contactref element="ROM_HI" pad="7"/>
<contactref element="SOCKET_HI_512K" pad="5"/>
</signal>
<signal name="CPU_A5">
<contactref element="SOCKET_HI_PLUS" pad="6"/>
<contactref element="ROM_HI" pad="8"/>
<contactref element="SOCKET_HI_512K" pad="6"/>
</signal>
<signal name="CPU_A4">
<contactref element="SOCKET_HI_PLUS" pad="7"/>
<contactref element="ROM_HI" pad="9"/>
<contactref element="SOCKET_HI_512K" pad="7"/>
</signal>
<signal name="CPU_A3">
<contactref element="SOCKET_HI_PLUS" pad="8"/>
<contactref element="ROM_HI" pad="10"/>
<contactref element="SOCKET_HI_512K" pad="8"/>
</signal>
<signal name="CPU_A2">
<contactref element="SOCKET_HI_PLUS" pad="9"/>
<contactref element="ROM_HI" pad="11"/>
<contactref element="SOCKET_HI_512K" pad="9"/>
</signal>
<signal name="CPU_A1">
<contactref element="SOCKET_HI_PLUS" pad="10"/>
<contactref element="ROM_HI" pad="12"/>
<contactref element="SOCKET_HI_512K" pad="10"/>
</signal>
<signal name="D0">
<contactref element="SOCKET_LOW" pad="11"/>
<contactref element="ROM_LOW" pad="13"/>
</signal>
<signal name="D1">
<contactref element="SOCKET_LOW" pad="12"/>
<contactref element="ROM_LOW" pad="14"/>
</signal>
<signal name="D2">
<contactref element="SOCKET_LOW" pad="13"/>
<contactref element="ROM_LOW" pad="15"/>
</signal>
<signal name="CPU_A15">
<contactref element="SOCKET_HI_PLUS" pad="27"/>
<contactref element="ROM_HI" pad="29"/>
<contactref element="SOCKET_HI_512K" pad="27"/>
</signal>
<signal name="CPU_A14">
<contactref element="SOCKET_HI_PLUS" pad="26"/>
<contactref element="ROM_HI" pad="28"/>
<contactref element="SOCKET_HI_512K" pad="26"/>
</signal>
<signal name="CPU_A9">
<contactref element="SOCKET_HI_PLUS" pad="25"/>
<contactref element="ROM_HI" pad="27"/>
<contactref element="SOCKET_HI_512K" pad="25"/>
</signal>
<signal name="CPU_A10">
<contactref element="SOCKET_HI_PLUS" pad="24"/>
<contactref element="ROM_HI" pad="26"/>
<contactref element="SOCKET_HI_512K" pad="24"/>
</signal>
<signal name="CPU_A12">
<contactref element="SOCKET_HI_PLUS" pad="23"/>
<contactref element="ROM_HI" pad="25"/>
<contactref element="SOCKET_HI_512K" pad="23"/>
</signal>
<signal name="CPU_A17_ROM">
<contactref element="SOCKET_LOW" pad="22"/>
<contactref element="SOCKET_HI_PLUS" pad="22"/>
<contactref element="JP2" pad="3"/>
<contactref element="JP1" pad="1"/>
<contactref element="SOCKET_HI_512K" pad="22"/>
</signal>
<signal name="CPU_A11">
<contactref element="SOCKET_HI_PLUS" pad="21"/>
<contactref element="ROM_HI" pad="23"/>
<contactref element="SOCKET_HI_512K" pad="21"/>
</signal>
<signal name="ROMCE_CPU_A20">
<contactref element="SOCKET_LOW" pad="20"/>
<contactref element="SOCKET_HI_PLUS" pad="20"/>
<contactref element="NOR" pad="9"/>
<contactref element="SOCKET_HI_512K" pad="20"/>
</signal>
<signal name="D7">
<contactref element="SOCKET_LOW" pad="19"/>
<contactref element="ROM_LOW" pad="21"/>
</signal>
<signal name="D6">
<contactref element="SOCKET_LOW" pad="18"/>
<contactref element="ROM_LOW" pad="20"/>
</signal>
<signal name="D5">
<contactref element="SOCKET_LOW" pad="17"/>
<contactref element="ROM_LOW" pad="19"/>
</signal>
<signal name="D4">
<contactref element="SOCKET_LOW" pad="16"/>
<contactref element="ROM_LOW" pad="18"/>
</signal>
<signal name="D3">
<contactref element="SOCKET_LOW" pad="15"/>
<contactref element="ROM_LOW" pad="17"/>
</signal>
<signal name="A17_SEL">
<contactref element="ROM_LOW" pad="2"/>
<contactref element="ROM_HI" pad="2"/>
<contactref element="JP1" pad="2"/>
</signal>
<signal name="CPU_A18">
<contactref element="ROM_LOW" pad="30"/>
<contactref element="ROM_HI" pad="30"/>
<contactref element="JP3" pad="2"/>
</signal>
<signal name="CPU_A19">
<contactref element="ROM_LOW" pad="1"/>
<contactref element="ROM_HI" pad="1"/>
<contactref element="JP3" pad="3"/>
</signal>
<signal name="OE">
<contactref element="ROM_LOW" pad="24"/>
<contactref element="NOR" pad="1"/>
<contactref element="ROM_HI" pad="24"/>
</signal>
<signal name="CPU_RW">
<contactref element="ROM_LOW" pad="31"/>
<contactref element="NOR" pad="2"/>
<contactref element="NOR" pad="3"/>
<contactref element="ROM_HI" pad="31"/>
<contactref element="JP3" pad="4"/>
</signal>
<signal name="CE">
<contactref element="ROM_LOW" pad="22"/>
<contactref element="NOR" pad="13"/>
<contactref element="ROM_HI" pad="22"/>
</signal>
<signal name="D8">
<contactref element="SOCKET_HI_PLUS" pad="11"/>
<contactref element="ROM_HI" pad="13"/>
<contactref element="SOCKET_HI_512K" pad="11"/>
</signal>
<signal name="D9">
<contactref element="SOCKET_HI_PLUS" pad="12"/>
<contactref element="ROM_HI" pad="14"/>
<contactref element="SOCKET_HI_512K" pad="12"/>
</signal>
<signal name="D10">
<contactref element="SOCKET_HI_PLUS" pad="13"/>
<contactref element="ROM_HI" pad="15"/>
<contactref element="SOCKET_HI_512K" pad="13"/>
</signal>
<signal name="D15">
<contactref element="SOCKET_HI_PLUS" pad="19"/>
<contactref element="ROM_HI" pad="21"/>
<contactref element="SOCKET_HI_512K" pad="19"/>
</signal>
<signal name="D14">
<contactref element="SOCKET_HI_PLUS" pad="18"/>
<contactref element="ROM_HI" pad="20"/>
<contactref element="SOCKET_HI_512K" pad="18"/>
</signal>
<signal name="D13">
<contactref element="SOCKET_HI_PLUS" pad="17"/>
<contactref element="ROM_HI" pad="19"/>
<contactref element="SOCKET_HI_512K" pad="17"/>
</signal>
<signal name="D12">
<contactref element="SOCKET_HI_PLUS" pad="16"/>
<contactref element="ROM_HI" pad="18"/>
<contactref element="SOCKET_HI_512K" pad="16"/>
</signal>
<signal name="D11">
<contactref element="SOCKET_HI_PLUS" pad="15"/>
<contactref element="ROM_HI" pad="17"/>
<contactref element="SOCKET_HI_512K" pad="15"/>
</signal>
<signal name="N$1">
<contactref element="NOR" pad="11"/>
<contactref element="NOR" pad="12"/>
<contactref element="NOR" pad="10"/>
</signal>
<signal name="CPU_A17">
<contactref element="JP3" pad="1"/>
<contactref element="JP1" pad="3"/>
</signal>
<signal name="N$2">
<contactref element="JP2" pad="2"/>
<contactref element="NOR" pad="8"/>
</signal>
<signal name="CPU_A1L">
<contactref element="SOCKET_LOW" pad="10"/>
<contactref element="ROM_LOW" pad="12"/>
</signal>
<signal name="CPU_A2L">
<contactref element="SOCKET_LOW" pad="9"/>
<contactref element="ROM_LOW" pad="11"/>
</signal>
<signal name="CPU_A3L">
<contactref element="SOCKET_LOW" pad="8"/>
<contactref element="ROM_LOW" pad="10"/>
</signal>
<signal name="CPU_A4L">
<contactref element="SOCKET_LOW" pad="7"/>
<contactref element="ROM_LOW" pad="9"/>
</signal>
<signal name="CPU_A5L">
<contactref element="SOCKET_LOW" pad="6"/>
<contactref element="ROM_LOW" pad="8"/>
</signal>
<signal name="CPU_A6L">
<contactref element="SOCKET_LOW" pad="5"/>
<contactref element="ROM_LOW" pad="7"/>
</signal>
<signal name="CPU_A7L">
<contactref element="SOCKET_LOW" pad="4"/>
<contactref element="ROM_LOW" pad="6"/>
</signal>
<signal name="CPU_A8L">
<contactref element="SOCKET_LOW" pad="3"/>
<contactref element="ROM_LOW" pad="5"/>
</signal>
<signal name="CPU_A13L">
<contactref element="SOCKET_LOW" pad="2"/>
<contactref element="ROM_LOW" pad="4"/>
</signal>
<signal name="CPU_A16L">
<contactref element="SOCKET_LOW" pad="1"/>
<contactref element="ROM_LOW" pad="3"/>
</signal>
<signal name="CPU_A15L">
<contactref element="SOCKET_LOW" pad="27"/>
<contactref element="ROM_LOW" pad="29"/>
</signal>
<signal name="CPU_A14L">
<contactref element="SOCKET_LOW" pad="26"/>
<contactref element="ROM_LOW" pad="28"/>
</signal>
<signal name="CPU_A9L">
<contactref element="SOCKET_LOW" pad="25"/>
<contactref element="ROM_LOW" pad="27"/>
</signal>
<signal name="CPU_A10L">
<contactref element="SOCKET_LOW" pad="24"/>
<contactref element="ROM_LOW" pad="26"/>
</signal>
<signal name="CPU_A12L">
<contactref element="SOCKET_LOW" pad="23"/>
<contactref element="ROM_LOW" pad="25"/>
</signal>
<signal name="CPU_A11L">
<contactref element="SOCKET_LOW" pad="21"/>
<contactref element="ROM_LOW" pad="23"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
