<?xml version="1.0" ?>

<!DOCTYPE msxconfig SYSTEM 'msxconfig2.dtd'>

<msxconfig>

  <info>

    <manufacturer>Toshiba</manufacturer>

    <code>HX-23</code>

    <release_year>1985</release_year>

    <description>Rare Japanese MSX2 with stereo PSG, only 64kB of VRAM and word processing software built in.</description>

    <type>MSX2</type>

    <region>jp</region>

  </info>

  <!-- by FRS -->

  <!-- CPU is a Sharp LH0080A -->

  <!-- ROMs are assumed to be the same as HX-23F, which was used as a base for

       this config. -->

  <CassettePort/>

  <devices>

    <PPI id="ppi"> <!-- Embedded inside the TCX-1012 MSX-Engine -->

      <sound>

        <volume>16000</volume>

      </sound>

      <io base="0xA8" num="4"/>

      <keyboard_type>jp_jis</keyboard_type>

      <has_keypad>false</has_keypad>

      <key_ghosting_sgc_protected>false</key_ghosting_sgc_protected>

      <code_kana_locks>true</code_kana_locks>

      <graph_locks>false</graph_locks>

    </PPI>

    <VDP id="VDP">

      <version>V9938</version>

      <vram>64</vram> <!-- Eight 4164 DRAM chips -->

      <io base="0x98" num="8" type="O"/>

      <io base="0x98" num="8" type="I"/>

      <!-- TV-Encoder: LVA510 -->

    </VDP>

    <PSG id="PSG">

      <type>AY8910</type>

      <keyboardlayout>JIS</keyboardlayout>

      <sound>

        <volume>21000</volume>

        <!-- There's a switch in the back to select stereo or mono sound -->

        <balance channel="1">0</balance>

        <balance channel="2">100</balance>

        <balance channel="3">-100</balance>

      </sound>

      <!-- The PSG I/O ports are mirrored from A0h to A7h -->

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

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

    </PSG>

    <RTC id="Real time clock">

      <sramname>hx-23.cmos</sramname>

      <io base="0xB4" num="2" type="O"/>

      <io base="0xB5" num="1" type="I"/>

    </RTC>

    <PrinterPort id="Printer Port">

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

    </PrinterPort>

    <primary slot="0">

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

        <rom>

          <filename>Toshiba_HX-23F_IC2_basicbios.bin</filename>

          <sha1>0081ea0d25bc5cd8d70b60ad8cfdc7307812c0fd</sha1> <!-- direct EPROM dump by FRS -->

        </rom>

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

      </ROM>

        <RAM id="Main RAM page 2, 3">

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

        </RAM>

    </primary>

    <primary external="true" slot="1"/>

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

    <primary slot="3">

      <secondary slot="0">

        <RAM id="Main RAM page 0, 1">

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

        </RAM>

      </secondary>

      <secondary slot="2">

        <ROM id="MSX Sub ROM">

          <mem base="0x0000" size="0x4000"/>

          <rom>

            <sha1>6ecf73a1dd55b363c2e68cc6245ece979aec1fc5</sha1> <!-- direct EPROM dump by FRS -->

            <filename>Toshiba_HX-23F_IC52_subrom-jwp.bin</filename>

            <window base="0x0000" size="0x4000"/>

          </rom>

        </ROM>

        <ROM id="Japanese Word Processor part2">

          <rom>

            <sha1>6ecf73a1dd55b363c2e68cc6245ece979aec1fc5</sha1> <!-- direct EPROM dump by FRS -->

            <filename>Toshiba_HX-23F_IC52_subrom-jwp.bin</filename>

            <window base="0x4000" size="0x4000"/>

          </rom>

          <mem base="0x8000" size="0x4000"/>

        </ROM>

      </secondary>

      <secondary slot="3">

        <ROM id="RS-232 BIOS and Japanese Word Processor part1">

          <rom>

            <sha1>0958361ac9b19782cf7017b2e762b416e0203f37</sha1> <!-- direct EPROM dump by FRS -->

            <filename>Toshiba_HX-23F_IC3_rs232-jwp.bin</filename>

          </rom>

          <mem base="0x4000" size="0x8000"/>

        </ROM>

      </secondary>

    </primary>

  </devices>

</msxconfig>