<?xml version="1.0" ?>

<!DOCTYPE msxconfig SYSTEM 'msxconfig2.dtd'>

<msxconfig>

  <info>

    <manufacturer>Canon</manufacturer>

    <code>V-20 (JP)</code>

    <release_year>1984?</release_year>

    <description>Canon's main stream 64kB MSX1.</description>

    <type>MSX</type>

    <region>jp</region>

  </info>

<!--

     This config is based on Werner Kai's machine with serial 125911

     see https://plus.google.com/photos/112629367302659371233/albums/6153667357217383201

     Where no data was available, it is assumed the machine is the same as

     hap's European Canon V-20, see that config. This is mostly the mirroring

     behaviour.

CPU: NEC D780C-1

PPI: NEC D8255AC-5

PSG: Yamaha YM2149 - JIS

VDP: TMS9918ANL

crystal: X1:10.xx863 (VDP), X2:1431818(CPU/PSG): so not synced

IDENT Z80 info (VDP stuff just points to indeed TMS99xx):

z80 scf: 01ED29ED01FC29FC (standard)

z80 cpl: 3AFF12D7 (standard)

z80 out (c),0: 0 (MSX)

PSG pin 6/7 quirk: C (YES)

-->

  <CassettePort/>

  <devices>

    <primary slot="0">

      <ROM id="MSX BIOS with BASIC ROM">

        <mem base="0x0000" size="0x8000"/>

        <rom>

          <sha1>302afb5d8be26c758309ca3df611ae69cced2821</sha1>

          <filename>v-20jp_basic-bios1.rom</filename>

        </rom>

      </ROM>

    </primary>

    <primary external="true" slot="1"/> <!-- side slot -->

    <primary external="true" slot="2"/> <!-- top slot -->

    <primary slot="3">

      <RAM id="Main RAM">

        <mem base="0x0000" size="0x10000"/>

      </RAM>

    </primary>

    <PPI id="ppi">

      <io base="0xA8" num="8"/> <!-- mirroring confirmed by hap -->

      <sound>

        <volume>16000</volume>

      </sound>

      <keyboard_type>jp_jis</keyboard_type>

      <has_keypad>false</has_keypad>

      <key_ghosting_sgc_protected>true</key_ghosting_sgc_protected>

      <code_kana_locks>true</code_kana_locks>

      <graph_locks>false</graph_locks>

    </PPI>

    <VDP id="VDP">

      <io base="0x98" num="8"/> <!-- mirroring not sure if same as EU V-20 -->

      <version>TMS9918A</version>

      <initialContent encoding="hex">FF00</initialContent> <!-- not sure if same as EU V-20 -->

    </VDP>

    <PSG id="PSG">

      <type>YM2149</type>

      <keyboardlayout>JIS</keyboardlayout>

      <io base="0xA0" num="4" type="IO"/>

      <sound>

        <volume>21000</volume>

      </sound>

      <ignorePortDirections>false</ignorePortDirections> <!-- not sure, but guess based on discrete PSG chip -->

    </PSG>

    <PrinterPort id="Printer Port">

      <io base="0x90" num="2"/>

    </PrinterPort>

  </devices>

</msxconfig>