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   4 <title>Motorola S-Record Format</title>
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   8
   9 <h1 align="left">Motorola S-Record Format</h1>
  10 <!--INDEX symbols "S3 records" "S4 records" "Motorola S-records" -->
  11 <!--INDEX "S-record format" -->
  12
  13 <p>Motorola S-records are an industry-standard format for transmitting binary files to
  14 target systems and PROM programmers. LSI Logic have extended this standard to include an
  15 S4-record containing an address and a symbol. </p>
  16
  17 <p>The extended S-record standard is as follows:</p>
  18
  19 <pre>
  20
  21 S&lt;type&gt;&lt;length&gt;&lt;address&gt;&lt;data....&gt;&lt;checksum&gt;
  22
  23 S4&lt;length&gt;&lt;address&gt;&lt;name&gt;,&lt;checksum&gt;
  24
  25 </pre>
  26
  27 <p>Where:
  28
  29 <dl>
  30   <dt><b>type </b></dt>
  31   <dd>is the record type. Where:
  32     <dl compact>
  33       <dt>0 starting record (optional) </dt>
  34       <dt>1 data record with 16-bit address </dt>
  35       <dt>2 data record with 24-bit address </dt>
  36       <dt>3 data record with 32-bit address </dt>
  37       <dt>4 symbol record (LSI extension) </dt>
  38       <dt>5 number of data records in preceeding block </dt>
  39       <dt>6 unused </dt>
  40       <dt>7 ending record for S3 records </dt>
  41       <dt>8 ending record for S2 records </dt>
  42       <dt>9 ending record for S1 records </dt>
  43     </dl>
  44   </dd>
  45   <dt><b>length </b></dt>
  46   <dd>is two hex characters. This defines the length of the record in bytes (not characters).
  47     It includes the address field, the data field, and the checksum field. </dd>
  48   <dt><b>address </b></dt>
  49   <dd>is 4, 6, or 8 characters. Corresponding to a 16-, 24-, or 32-bit address. The address
  50     field for S4 records is always 32 bits. </dd>
  51   <dt><b>data </b></dt>
  52   <dd>Are the data bytes. Each pair of hex characters represent one byte in memory.</dd>
  53   <dt><b>name </b></dt>
  54   <dd>Is the symbol name. The symbol is terminated by a ','.</dd>
  55   <dt><b>checksum</b> </dt>
  56   <dd>Is the one's complement of the 8-bit checksum.</dd>
  57 </dl>
  58
  59 <h2>Example</h2>
  60
  61 <pre>
  62
  63 S0030000FC
  64
  65 .
  66
  67 .
  68
  69 S325000004403C0880018D08DD900000000011000026000000003C0880012508DC50C50000B401
  70
  71 S32500000460C50100B8C50200BCC50300C0C50400C4C50500C8C50600CCC50700D0C50800D4FA
  72
  73 S32500000480C50900D8C50A00DCC50B00E0C50C00E4C50D00E8C50E00ECC50F00F0C51000F49A
  74
  75 S325000004A0C51100F8C51200FCC5130100C5140104C5150108C516010CC5170110C518011434
  76
  77 .
  78
  79 .
  80
  81 S70500000000FA
  82
  83 </pre>
  84
  85 <p>The S0 record starts the file. The S3 records contain the data. The S7 record contains
  86 the entry address and terminates the download.</p>
  87
  88 <h2>See Also</h2>
  89 <blockquote>
  90   <p><a href="frec.htm">fast load</a> format definition.</p>
  91 </blockquote>
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