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<chapter xmlns="http://docbook.org/ns/docbook"
         xmlns:xi="http://www.w3.org/2001/XInclude"
         xmlns:xl="http://www.w3.org/1999/xlink" 
         version="5.0" xml:lang="en" 
         xml:id="ch_error_codes">

  <title>Error Codes</title>
  
  <section xml:id="dbdoclet.50569337_63826">
    <title>Displaying Codes on the Standard Operator Panels</title>
    
    <variablelist>
    
    	<varlistentry>
    		<term><emphasis role="bold">R1-<xref linkend="dbdoclet.50569337_63826" 
  			xrefstyle="select: labelnumber nopage"/>-1.</emphasis></term>
    			<listitem>
			      <para><emphasis role="bold">Platform Implementation:</emphasis> Platforms must display
			      firmware progress codes (4 hex digits) on the operator panel display. On
			      2x16 LCD displays, the progress codes are displayed left-justified on the
			      first line.</para>
    			</listitem>
    	</varlistentry>
    
    	<varlistentry>
    		<term><emphasis role="bold">R1-<xref linkend="dbdoclet.50569337_63826" 
  			xrefstyle="select: labelnumber nopage"/>-2.</emphasis></term>
    			<listitem>
			      <para><emphasis role="bold">Platform Implementation:</emphasis> Platforms must display
			      firmware error codes (8 hex digits) on the system console (graphic or
			      tty), and left-justified on the first line of a 2x16 LCD operator panel
			      display (if available).</para>
    			</listitem>
    	</varlistentry>
    
    	<varlistentry>
    		<term><emphasis role="bold">R1-<xref linkend="dbdoclet.50569337_63826" 
  			xrefstyle="select: labelnumber nopage"/>-3.</emphasis></term>
    			<listitem>
			      <para><emphasis role="bold">Platform Implementation:</emphasis> When a platform displays
			      firmware error codes, associated location codes must be displayed on the
			      following line on the system console (graphic or tty), and left-justified
			      on the second line of a 2x16 LCD operator panel display (if
			      available).</para>
    			</listitem>
    	</varlistentry>
    
    </variablelist>
  
    <para>The following describes in more detail the standard platform usage
    of operator panel LEDs or LCDs for the display of firmware progress and
    error codes.</para>
    
    <itemizedlist>
      <listitem>
    
        <para><emphasis role="bold">Progress codes: </emphasis>Progress codes 
        from the system firmware and
        service processor firmware are 4 hex digits in the range from 0x8000
        through 0xFFFF. Codes are displayed in the 4 character positions of a 1x4
        LED, or left justified in the first line of a 2x16 LCD. Subsequent
        progress codes are displayed on top of (overlaying) the previous one. If
        the system &#8220;hangs&#8221;, the last displayed progress code is left
        on the display.</para>
    
      </listitem>
      <listitem>

        <para><emphasis role="bold">Error codes: </emphasis>Error codes are 8 
        hex digits, as defined in 
        <xref linkend="dbdoclet.50569337_36534"/>. These codes are displayed by
        either boot ROM Power On Self Test (POST) or the service processor. If a
        critical error is detected which prevents a successful boot or results in
        system halt condition, the error code will be displayed left justified on
        the first line of a 2x16 LCD. The error code is left on the LCD until the
        system is reset or powered down. Error codes are not displayed on the
        operator panel of platforms with only a 4-digit LED. On all platforms,
        however, POST error codes are displayed on any system console (graphic or
        tty). For non-critical errors where the system can boot and operate
        normally or in a degraded mode, the associated error codes are not
        displayed, but are reported to the OS via the POST error log and the RTAS
        <emphasis>event-scan</emphasis> service.</para>
    
      </listitem>
      <listitem>

        <para><emphasis role="bold">Location Codes: </emphasis>Location codes 
        describe the physical location of
        the most probable failing part associated with an error code. When an
        error code is displayed on the first line of a 2x16 LCD, the location
        code, if known, is displayed left justified on the second line. The
        location code will remain on the LCD along with the error code until the
        system is reset or powered down. Location codes for POST errors are also
        displayed on any system console (graphic or tty), on the next line below
        the error code.</para>
    
      </listitem>
    </itemizedlist>

  </section>
  
  <section xml:id="dbdoclet.50569337_36534">
    <title>Firmware Error Codes</title>
    
    <para>The error code is an 8-character (4-byte) hexadecimal code produced
    by firmware to identify the potential failing function or FRU in a
    system. It consists of 5 source code characters and 3 reason code
    characters. Individual characters within the error code have specific
    field definitions, as defined in the following tables.</para>
    
    <variablelist>
    
    	<varlistentry>
    		<term><emphasis role="bold">R1-<xref linkend="dbdoclet.50569337_36534" 
  			xrefstyle="select: labelnumber nopage"/>-1.</emphasis></term>
    			<listitem>
			      <para><emphasis role="bold">Platform Implementation:</emphasis> To indicate the occurrence
			      of a critical platform error, platforms must display (either on an
			      operator panel or console) an 8-digit hex error code as defined in 
			      <xref linkend="dbdoclet.50569337_58681"/> and 
			      <xref linkend="dbdoclet.50569337_51582"/>.</para>
    			</listitem>
    	</varlistentry>
    
    </variablelist>
  

    <table frame="all" pgwide="1" xml:id="dbdoclet.50569337_58681">
      <title>Table 155. Service Reference Code (SRC) Field Layout</title>
      <tgroup cols="8">
        <colspec colname="c1" colwidth="12*" />
        <colspec colname="c2" colwidth="12*" />
        <colspec colname="c3" colwidth="12*" />
        <colspec colname="c4" colwidth="12*" />
        <colspec colname="c5" colwidth="12*" />
        <colspec colname="c6" colwidth="12*" />
        <colspec colname="c7" colwidth="12*" />
        <colspec colname="c8" colwidth="12*" />
        <thead>
          <row>
            <entry nameend="c5" namest="c1">
              <para>
                <emphasis role="bold">Source Code</emphasis>
              </para>
            </entry>
            <entry nameend="c8" namest="c6">
              <para>
                <emphasis role="bold">Reason Code</emphasis>
              </para>
            </entry>
          </row>
        </thead>
        <tbody>
          <row>
            <entry nameend="c2" namest="c1">
              <para>
                <emphasis role="bold">Byte 0</emphasis>
              </para>
            </entry>
            <entry nameend="c4" namest="c3">
              <para>
                <emphasis role="bold">Byte 1</emphasis>
              </para>
            </entry>
            <entry nameend="c6" namest="c5">
              <para>
                <emphasis role="bold">Byte 2</emphasis>
              </para>
            </entry>
            <entry nameend="c8" namest="c7">
              <para>
                <emphasis role="bold">Byte 3</emphasis>
              </para>
            </entry>
          </row>
          <row>
            <entry>
              <para>S1</para>
            </entry>
            <entry>
              <para>S2</para>
            </entry>
            <entry>
              <para>S3</para>
            </entry>
            <entry>
              <para>S4</para>
            </entry>
            <entry>
              <para>S5</para>
            </entry>
            <entry>
              <para>R1</para>
            </entry>
            <entry>
              <para>R2</para>
            </entry>
            <entry>
              <para>R3</para>
            </entry>
          </row>
        </tbody>
      </tgroup>
    </table>

    <table frame="all" pgwide="1" xml:id="dbdoclet.50569337_51582">
      <title>Table 156. Service Reference Code (SRC) Field
      Descriptions</title>
      <tgroup cols="2">
        <colspec colname="c1" colwidth="50*" />
        <colspec colname="c2" colwidth="50*" />
        <thead>
          <row>
            <entry>
              <para>
                <emphasis role="bold">Field</emphasis>
              </para>
            </entry>
            <entry>
              <para>
                <emphasis role="bold">Description</emphasis>
              </para>
            </entry>
          </row>
        </thead>
        <tbody>
          <row>
            <entry>
              <para>S1</para>
            </entry>
            <entry>
              <para>Maintenance Package Source that produced the SRN</para>
              <para>0: Reserved</para>
              <para>1: Reserved</para>
              <para>2: POST, Firmware</para>
              <para>3: BIST</para>
              <para>4: Service processor, base system controller, etc.</para>
              <para>5: Reserved (potentially for use by AIX
              Diagnostics)</para>
              <para>8: Product-Specific Service Guide, MAPs</para>
              <para>9: Reserved (potentially for use by the Problem Solving
              Guide)</para>
              <para>A-F: Reserved for future extension</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>S2</para>
            </entry>
            <entry>
              <para>Where applicable, use the lower nibble of the 
              <emphasis>
                <xref linkend="dbdoclet.50569387_65468"/>
              </emphasis> base class code for the IOA definition (see 
              <xref linkend="dbdoclet.50569337_10405"/>). Only 00 to 0C are
              currently defined in Revision 2.1, therefore the high nibble is
              always zero. (There is a potential exposure that the high
              nibble will be defined in the future, but currently there are
              13 base classes defined which include every device class, with
              3 remaining characters for future extension by the PCI SIG.
              Therefore the exposure is in the far future.) For non-PCI
              devices, use base class 0 to extend the definition (see 
              <xref linkend="dbdoclet.50569337_69141"/>).</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>S3-S4</para>
            </entry>
            <entry>
              <para>Where applicable, use the 
              <emphasis>
                <xref linkend="dbdoclet.50569387_65468"/>
              </emphasis> subclass code for IOA definition (see 
              <xref linkend="dbdoclet.50569337_10405"/>). Also, extend the
              definition to include non-PCI devices where it is not fully
              utilized by PCI specification (see 
              <xref linkend="dbdoclet.50569337_69141"/>).</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>S5</para>
            </entry>
            <entry>
              <para>Unique version of the device/FRU type for a particular
              product</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>R1</para>
            </entry>
            <entry>
              <para>Device/FRU unique failure reason codes.</para>
              <para>For POST: assigned by Firmware Developer.</para>
              <para>For AIX Diagnostics (S1 = 5, not currently
              supported):</para>
              <para>1-7: Use in combination with R2,R3 for diagnostic test
              failure when maximum isolation was obtained.</para>
              <para>8-9: Use in combination with R2,R3 for diagnostic test
              failure when maximum isolation was NOT obtained.</para>
              <para>A: Log analysis of POST error log</para>
              <para>B: Log analysis of machine check or checkstop error
              log</para>
              <para>C: Log analysis of AIX device driver error log</para>
              <para>D: diagnostic detected missing resource</para>
              <para>E-F: Reserved</para>
              <para>For others: assigned by respective developers.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>R2-R3</para>
            </entry>
            <entry>
              <para>Device/FRU unique failure reason codes.</para>
              <para>For POST: assigned by Firmware Developer</para>
              <para>For others: assigned by respective developers.</para>
            </entry>
          </row>
        </tbody>
      </tgroup>
    </table>

    <table frame="all" pgwide="1" xml:id="dbdoclet.50569337_10405">
      <title>Table 157. Current PCI Class Code Definition</title>
      <tgroup cols="3">
        <colspec colname="c1" colwidth="33*" />
        <colspec colname="c2" colwidth="33*" />
        <colspec colname="c3" colwidth="33*" />
        <thead>
          <row>
            <entry>
              <para>
                <emphasis role="bold">PCI Base Class (lower
                nibble)S2</emphasis>
              </para>
            </entry>
            <entry>
              <para>
                <emphasis role="bold">PCI Sub-ClassS3-S4</emphasis>
              </para>
            </entry>
            <entry>
              <para>
                <emphasis role="bold">Description</emphasis>
              </para>
            </entry>
          </row>
        </thead>
        <tbody>
          <row>
            <entry morerows="2">
              <para>0</para>
            </entry>
            <entry nameend="c3" namest="c2">
              <para>Devices that were built before the class code field was
              defined</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>00</para>
            </entry>
            <entry>
              <para>All currently implemented IOAs except VGA-compatible
              IOAs.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>01</para>
            </entry>
            <entry>
              <para>VGA-compatible IOAs.</para>
            </entry>
          </row>
          <row>
            <entry morerows="6">
              <para>1</para>
            </entry>
            <entry nameend="c3" namest="c2">
              <para>Mass storage controller.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>00</para>
            </entry>
            <entry>
              <para>SCSI bus controller.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>01</para>
            </entry>
            <entry>
              <para>IDE controller.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>02</para>
            </entry>
            <entry>
              <para>Floppy disk controller.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>03</para>
            </entry>
            <entry>
              <para>Intelligent Peripheral Interface (IPI) bus
              controller.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>04</para>
            </entry>
            <entry>
              <para>Redundant Array of Independent Disks (RAID)
              controller.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>80</para>
            </entry>
            <entry>
              <para>Other mass storage controller.</para>
            </entry>
          </row>
          <row>
            <entry morerows="5">
              <para>2</para>
            </entry>
            <entry nameend="c3" namest="c2">
              <para>Network controller.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>00</para>
            </entry>
            <entry>
              <para>Ethernet controller.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>01</para>
            </entry>
            <entry>
              <para>Token Ring controller.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>02</para>
            </entry>
            <entry>
              <para>FDDI controller.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>03</para>
            </entry>
            <entry>
              <para>ATM controller.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>80</para>
            </entry>
            <entry>
              <para>Other Network controller.</para>
            </entry>
          </row>
          <row>
            <entry morerows="3">
              <para>3</para>
            </entry>
            <entry nameend="c3" namest="c2">
              <para>Display controller.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>00</para>
            </entry>
            <entry>
              <para>VGA-Compatible controller.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>01</para>
            </entry>
            <entry>
              <para>Extended Graphics Array (XGA) controller.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>80</para>
            </entry>
            <entry>
              <para>Other display controller.</para>
            </entry>
          </row>
          <row>
            <entry morerows="3">
              <para>4</para>
            </entry>
            <entry nameend="c3" namest="c2">
              <para>Multimedia device</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>00</para>
            </entry>
            <entry>
              <para>Video device</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>01</para>
            </entry>
            <entry>
              <para>Audio device</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>80</para>
            </entry>
            <entry>
              <para>Other multimedia device</para>
            </entry>
          </row>
          <row>
            <entry morerows="3">
              <para>5</para>
            </entry>
            <entry nameend="c3" namest="c2">
              <para>Memory controller.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>00</para>
            </entry>
            <entry>
              <para>RAM</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>01</para>
            </entry>
            <entry>
              <para>Flash</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>80</para>
            </entry>
            <entry>
              <para>Other memory controller.</para>
            </entry>
          </row>
          <row>
            <entry morerows="9">
              <para>6</para>
            </entry>
            <entry nameend="c3" namest="c2">
              <para>Bridge IOAs.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>00</para>
            </entry>
            <entry>
              <para>Host bridge</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>01</para>
            </entry>
            <entry>
              <para>Reserved</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>02</para>
            </entry>
            <entry>
              <para>Reserved</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>03</para>
            </entry>
            <entry>
              <para>Reserved</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>04</para>
            </entry>
            <entry>
              <para>PCI-to-PCI bridge</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>05</para>
            </entry>
            <entry>
              <para>Reserved</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>06</para>
            </entry>
            <entry>
              <para>Reserved</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>07</para>
            </entry>
            <entry>
              <para>Reserved</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>80</para>
            </entry>
            <entry>
              <para>Other bridge device.</para>
            </entry>
          </row>
          <row>
            <entry morerows="3">
              <para>7</para>
            </entry>
            <entry nameend="c3" namest="c2">
              <para>Simple communication controllers.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>00</para>
            </entry>
            <entry>
              <para>Serial controllers.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>01</para>
            </entry>
            <entry>
              <para>Parallel port.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>80</para>
            </entry>
            <entry>
              <para>Other communication controllers.</para>
            </entry>
          </row>
          <row>
            <entry morerows="5">
              <para>8</para>
            </entry>
            <entry nameend="c3" namest="c2">
              <para>Generic system peripherals</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>00</para>
            </entry>
            <entry>
              <para>PIC</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>01</para>
            </entry>
            <entry>
              <para>DMA Controller.</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>02</para>
            </entry>
            <entry>
              <para>System timer</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>03</para>
            </entry>
            <entry>
              <para>Real-Time Clock (RTC) controller</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>80</para>
            </entry>
            <entry>
              <para>Other system peripherals</para>
            </entry>
          </row>
          <row>
            <entry morerows="4">
              <para>9</para>
            </entry>
            <entry nameend="c3" namest="c2">
              <para>Input devices</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>00</para>
            </entry>
            <entry>
              <para>Keyboard controller</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>01</para>
            </entry>
            <entry>
              <para>Digitizer (pen).</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>02</para>
            </entry>
            <entry>
              <para>Mouse controller</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>80</para>
            </entry>
            <entry>
              <para>Other input controllers.</para>
            </entry>
          </row>
          <row>
            <entry morerows="2">
              <para>A</para>
            </entry>
            <entry nameend="c3" namest="c2">
              <para>Docking stations</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>00</para>
            </entry>
            <entry>
              <para>Generic docking station</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>80</para>
            </entry>
            <entry>
              <para>Other type of docking station</para>
            </entry>
          </row>
          <row>
            <entry morerows="2">
              <para>B</para>
            </entry>
            <entry nameend="c3" namest="c2">
              <para>Processors</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>20</para>
            </entry>
            <entry>
              <para>PA compliant (PowerPC and successors)</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>40</para>
            </entry>
            <entry>
              <para>Co-processor</para>
            </entry>
          </row>
          <row>
            <entry morerows="2">
              <para>C</para>
            </entry>
            <entry nameend="c3" namest="c2">
              <para>Serial bus controllers</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>03</para>
            </entry>
            <entry>
              <para>Universal Serial Bus (USB)</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>04</para>
            </entry>
            <entry>
              <para>Fibre Channel</para>
            </entry>
          </row>
        </tbody>
      </tgroup>
    </table>

    <table frame="all" pgwide="1" xml:id="dbdoclet.50569337_69141">
      <title>Table 158. S2-S3-S4 Definition for Devices/FRUs not Defined in
      the PCI Specification</title>
      <tgroup cols="3">
        <colspec colname="c1" colwidth="33*" />
        <colspec colname="c2" colwidth="33*" />
        <colspec colname="c3" colwidth="33*" />
        <thead>
          <row>
            <entry>
              <para>
                <emphasis role="bold">Base ClassS2</emphasis>
              </para>
            </entry>
            <entry>
              <para>
                <emphasis role="bold">Sub-ClassS3-S4</emphasis>
              </para>
            </entry>
            <entry>
              <para>
                <emphasis role="bold">Description</emphasis>
              </para>
            </entry>
          </row>
        </thead>
        <tbody>
          <row>
            <entry morerows="13">
              <para>0</para>
            </entry>
            <entry>
              <para>10</para>
            </entry>
            <entry>
              <para>AC Power</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>11</para>
            </entry>
            <entry>
              <para>DC Power</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>20</para>
            </entry>
            <entry>
              <para>Temperature Related Problem</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>21</para>
            </entry>
            <entry>
              <para>Fans</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>30-3x</para>
            </entry>
            <entry>
              <para>Cables</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>40-4x</para>
            </entry>
            <entry>
              <para>Terminators</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>50</para>
            </entry>
            <entry>
              <para>Operator panels</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>60-6x</para>
            </entry>
            <entry>
              <para>Reserved</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>70-7x</para>
            </entry>
            <entry>
              <para>Reserved</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>90-9x</para>
            </entry>
            <entry>
              <para>Reserved</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>A0</para>
            </entry>
            <entry>
              <para>Boot firmware Heartbeat</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>B0</para>
            </entry>
            <entry>
              <para>O/S Heartbeat</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>D0</para>
            </entry>
            <entry>
              <para>Unknown device</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>E0</para>
            </entry>
            <entry>
              <para>Security</para>
            </entry>
          </row>
          <row>
            <entry morerows="13">
              <para>1</para>
            </entry>
            <entry>
              <para>A0</para>
            </entry>
            <entry>
              <para>SCSI Drives (generic)</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>B0</para>
            </entry>
            <entry>
              <para>IDE Drives</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>C0</para>
            </entry>
            <entry>
              <para>RAID Drives</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>D0</para>
            </entry>
            <entry>
              <para>SSA Drives</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>E0</para>
            </entry>
            <entry>
              <para>Tapes SCSI</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>E1</para>
            </entry>
            <entry>
              <para>Tapes IDE</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>ED</para>
            </entry>
            <entry>
              <para>SCSI Changer</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>EE</para>
            </entry>
            <entry>
              <para>Other SCSI Device</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>EF</para>
            </entry>
            <entry>
              <para>Diskette drive</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>F0</para>
            </entry>
            <entry>
              <para>CDROM SCSI</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>F1</para>
            </entry>
            <entry>
              <para>CDROM IDE</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>F2</para>
            </entry>
            <entry>
              <para>Read/Write Optical SCSI</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>F3</para>
            </entry>
            <entry>
              <para>Read/Write Optical IDE</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>F4-FF</para>
            </entry>
            <entry>
              <para>Reserved for other media devices</para>
            </entry>
          </row>
          <row>
            <entry morerows="6">
              <para>5</para>
            </entry>
            <entry>
              <para>A0</para>
            </entry>
            <entry>
              <para>L2 Cache Controller including integrated SRAM</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>A1</para>
            </entry>
            <entry>
              <para>L2 Cache SRAM</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>A8</para>
            </entry>
            <entry>
              <para>NVRAM</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>A9</para>
            </entry>
            <entry>
              <para>CMOS</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>AA</para>
            </entry>
            <entry>
              <para>Quartz/EEPROM</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>B0-Bx</para>
            </entry>
            <entry>
              <para>Memory cards</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>Cyy</para>
            </entry>
            <entry>
              <para>Memory DIMMs (yy = memory PD bits)</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>7</para>
            </entry>
            <entry>
              <para>A0</para>
            </entry>
            <entry>
              <para>I<superscript>2</superscript>C bus</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>8</para>
            </entry>
            <entry>
              <para>A0</para>
            </entry>
            <entry>
              <para>Power Management Functions</para>
            </entry>
          </row>
          <row>
            <entry morerows="4">
              <para>9</para>
            </entry>
            <entry>
              <para>A0-Ax</para>
            </entry>
            <entry>
              <para>Keyboards</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>B0-Bx</para>
            </entry>
            <entry>
              <para>Mouse(s)</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>C0-Cx</para>
            </entry>
            <entry>
              <para>Dials</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>D0</para>
            </entry>
            <entry>
              <para>Tablet</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>D1-Dx</para>
            </entry>
            <entry>
              <para>Reserved for other input devices</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>B</para>
            </entry>
            <entry>
              <para>A0</para>
            </entry>
            <entry>
              <para>Service processor</para>
            </entry>
          </row>
        </tbody>
      </tgroup>
    </table>
    
  </section>
  
</chapter>
