<?xml version="1.0" ?>
<!DOCTYPE msxconfig SYSTEM 'msxconfig2.dtd'>
<msxconfig>

  <info>
    <manufacturer>Spectravideo</manufacturer>
    <code>SVI-728 (ES)</code>
    <release_year>1983</release_year>
    <description/>
    <type>MSX</type>
  </info>

  <!--
       based on Werner Kai's machine with serial BI7280069769.
       Z80 scf: 01ED29ED01FC29FC (standard)
       Z80 cpl: 3AFF12D7 (standard)
       Z80 out (C),0: 0 (MSX)
       PSG pin 6/7 quirk: C (YES)
       PSGmask: like AY8910

       CPU: Zilog Z8400APS
       PSG: GI AY-3-8910A
       PPI: Toshiba TMP8255AP-5
       VDP: not visible due to glued on cooling plate
       PCB says: Version 1:7
   -->

  <CassettePort/>

  <devices>

    <PPI id="ppi">
      <sound>
        <volume>16000</volume>
      </sound>
      <io base="0xA8" num="4"/>
      <keyboard_type>es</keyboard_type>
      <has_keypad>true</has_keypad>
      <key_ghosting_sgc_protected>true</key_ghosting_sgc_protected>
      <code_kana_locks>false</code_kana_locks>
      <graph_locks>false</graph_locks>
    </PPI>

    <VDP id="VDP">
      <version>TMS9129</version>
      <io base="0x98" num="2"/>
    </VDP>

    <PSG id="PSG">
      <type>AY8910</type>
      <sound>
        <volume>21000</volume>
      </sound>
      <io base="0xA0" num="2" type="O"/>
      <io base="0xA2" num="1" type="I"/>
      <ignorePortDirections>false</ignorePortDirections> <!-- not sure, but guess based on discrete PSG chip -->
    </PSG>

    <PrinterPort id="Printer Port">
      <io base="0x90" num="2"/>
    </PrinterPort>

    <primary slot="0">
      <ROM id="MSX BIOS with BASIC ROM">
        <rom>
          <filename>svi-728es_basic-bios1.rom</filename>
          <sha1>82415ee031721d1954bfa42e1c6dd79d71c692d6</sha1>
        </rom>
        <mem base="0x0000" size="0x8000"/>
      </ROM>
    </primary>

    <primary slot="1">
      <RAM id="Main RAM">
        <mem base="0x0000" size="0x10000"/>
      </RAM>
    </primary>

    <primary external="true" slot="2"/>

    <primary external="true" slot="3"/>

  </devices>

</msxconfig>
