<?xml version="1.0" ?>

<!DOCTYPE msxconfig SYSTEM 'msxconfig2.dtd'>

<msxconfig>

  <info>

    <manufacturer>Philips</manufacturer>

    <code>NMS 8250/16</code>

    <release_year>1986</release_year>

    <description>Spanish version of this popular desktop MSX2.</description>

    <type>MSX2</type>

    <region>es</region>

  </info>

  <!-- based on the international NMS 8250 config with additional ROM dumps

       from the machine of 'friguron', see

       https://www.msx.org/forum/msx-talk/development/nms825016-bios

    -->

  <MapperReadBackBits>largest</MapperReadBackBits>

  <CassettePort/>

  <devices>

    <primary slot="0">

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

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

        <rom>

          <sha1>ee0d8ccfc247368078d27183c34b3a5c0f4ae0f1</sha1>

          <filename>nms8250-16_basic-bios2.rom</filename>

        </rom>

      </ROM>

    </primary>

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

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

    <primary slot="3">

      <secondary slot="0">

        <ROM id="MSX Sub ROM">

          <mem base="0x0000" size="0x10000"/> <!-- it is mirrored all over the slot -->

          <rom>

            <sha1>b83770cca8453a153d7e260070a3a3c059d64ed3</sha1>

            <filename>nms8250-16_msx2sub.rom</filename>

          </rom>

        </ROM>

      </secondary>

      <secondary slot="2">

        <MemoryMapper id="Main RAM">

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

          <size>128</size>

          <initialContent encoding="gz-base64">eNpj+M8wouEI9z4DAJBx/wE=</initialContent> <!-- (chr(0) + chr(255)) * 128 + (chr(255)+ chr(0)) * 128) -->

        </MemoryMapper>

      </secondary>

      <secondary slot="3">

        <WD2793 id="Memory Mapped FDC">

          <connectionstyle>Philips</connectionstyle>

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

          <!-- Verified on a real 8250 and 8280: FDC registers are visible

               in all 4 pages, rom only in page 1. This is handled internally

               in the WD2793 device -->

          <rom_visibility base="0x4000" size="0x4000"/> <!-- ROM only visible in page 1 -->

          <rom>

            <sha1>c3efedda7ab947a06d9345f7b8261076fa7ceeef</sha1>

            <filename>nms8250_disk.rom</filename>

          </rom>

          <drives>1</drives>

        </WD2793>

      </secondary>

    </primary>

    <PPI id="ppi">

      <io base="0xA8" num="8"/> <!-- S-3527 mirrors -->

      <sound>

        <volume>16000</volume>

      </sound>

      <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">

      <io base="0x98" num="8" type="O"/> <!-- S-3527 mirrors -->

      <io base="0x98" num="8" type="I"/> <!-- S-3527 mirrors -->

      <version>V9938</version>

      <vram>128</vram>

    </VDP>

    <PSG id="PSG">

      <type>YM2149</type> <!-- in S-3527 MSX-ENGINE -->

      <io base="0xA0" num="8" type="IO"/> <!-- S-3527 mirrors -->

      <sound>

        <volume>21000</volume>

      </sound>

      <ignorePortDirections>true</ignorePortDirections> <!-- not sure, but guess based on use of Engine IC -->

    </PSG>

    <RTC id="Real time clock">

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

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

      <sramname>nms8250-16.cmos</sramname>

    </RTC>

    <PrinterPort id="Printer Port">

      <io base="0x90" num="8" type="IO"/> <!-- S-3527 mirrors -->

      <status_readable_on_all_ports>true</status_readable_on_all_ports> <!-- S-3527 property -->

      <unused_bits>0x00</unused_bits> <!-- as measured on one NMS 8250 -->

    </PrinterPort>

  </devices>

</msxconfig>