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  6. <TITLE>TI-73 Link Protocol Guide - Manual Transfers</TITLE>
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  8. <BODY BGCOLOR="#FFFFE8">
  9. <P><B>TI-73 Link Protocol Guide v1.0</B> - Manual Variable Transfers (<i>to do...</i>)</P>
  10. <CENTER>
  11. <H2>
  12. <HR ALIGN="CENTER">
  13. Manual Variable Transfers</H2>
  14. </CENTER>
  15. <P>The TI-73 uses manual transfer protocols when it is in Link mode. On the sending unit a user must choose the
  16. variables to be sent, and the receiving calculator must be put into a special reception mode.</P>
  17. <P>The protocol for all manual variable transfers is shown below. For information on packet formats, <A HREF="packet.html">click
  18. here</A>.</P>
  19. <P>A computer can be either the sending unit or the receiving unit.</P>
  20. <P>
  21. <TABLE BORDER="1" CELLSPACING="0" WIDTH="92%" BGCOLOR="#FFFFFF">
  22. <TR>
  23. <TH WIDTH="7%" BGCOLOR="#008800"><FONT COLOR="#FFFFFF">Step</FONT></TH>
  24. <TH COLSPAN="3" BGCOLOR="#008800"><FONT COLOR="#FFFFFF">Direction</FONT></TH>
  25. <TH WIDTH="80%" BGCOLOR="#008800"><FONT COLOR="#FFFFFF">Packet</FONT></TH>
  26. </TR>
  27. <TR>
  28. <TD WIDTH="7%" BGCOLOR="#FFFFFF">
  29. <P ALIGN="CENTER">1
  30. </TD>
  31. <TD ROWSPAN="8">
  32. <P ALIGN="CENTER"><IMG SRC="graphics/calc.gif" WIDTH="30" HEIGHT="67" ALIGN="BOTTOM" ALT="Sending Unit" BORDER="0">
  33. </TD>
  34. <TD BGCOLOR="#FFFFFF">
  35. <P ALIGN="CENTER"><IMG SRC="graphics/right.gif" WIDTH="22" HEIGHT="13" ALIGN="BOTTOM" ALT="===>" BORDER="0">
  36. </TD>
  37. <TD ROWSPAN="8">
  38. <P ALIGN="CENTER"><IMG SRC="graphics/calc.gif" WIDTH="30" HEIGHT="67" ALIGN="BOTTOM" ALT="Receiving Unit" BORDER="0">
  39. </TD>
  40. <TD WIDTH="80%" BGCOLOR="#FFFFFF">VAR</TD>
  41. </TR>
  42. <TR>
  43. <TD WIDTH="7%" BGCOLOR="#FFFFFF">
  44. <P ALIGN="CENTER">2
  45. </TD>
  46. <TD BGCOLOR="#FFFFFF">
  47. <P ALIGN="CENTER"><IMG SRC="graphics/left.gif" WIDTH="22" HEIGHT="13" ALIGN="BOTTOM" ALT="<===" BORDER="0">
  48. </TD>
  49. <TD WIDTH="80%" BGCOLOR="#FFFFFF">ACK</TD>
  50. </TR>
  51. <TR>
  52. <TD WIDTH="7%" BGCOLOR="#FFFFFF">
  53. <P ALIGN="CENTER">3
  54. </TD>
  55. <TD BGCOLOR="#FFFFFF">
  56. <P ALIGN="CENTER"><IMG SRC="graphics/left.gif" WIDTH="22" HEIGHT="13" ALIGN="BOTTOM" ALT="<===" BORDER="0">
  57. </TD>
  58. <TD WIDTH="80%" BGCOLOR="#FFFFFF">CTS or SKIP/EXIT. Do step 4 (send the ACK). Then if skip, skip to step 7, or if exit then stop.</TD>
  59. </TR>
  60. <TR>
  61. <TD WIDTH="7%" BGCOLOR="#FFFFFF">
  62. <P ALIGN="CENTER">4
  63. </TD>
  64. <TD BGCOLOR="#FFFFFF">
  65. <P ALIGN="CENTER"><IMG SRC="graphics/right.gif" WIDTH="22" HEIGHT="13" ALIGN="BOTTOM" ALT="===>" BORDER="0">
  66. </TD>
  67. <TD WIDTH="80%" BGCOLOR="#FFFFFF">ACK</TD>
  68. </TR>
  69. <TR>
  70. <TD WIDTH="7%">
  71. <P ALIGN="CENTER">5
  72. </TD>
  73. <TD>
  74. <P ALIGN="CENTER"><IMG SRC="graphics/right.gif" WIDTH="22" HEIGHT="13" ALIGN="BOTTOM" ALT="===>" BORDER="0">
  75. </TD>
  76. <TD WIDTH="80%">DATA</TD>
  77. </TR>
  78. <TR>
  79. <TD WIDTH="7%">
  80. <P ALIGN="CENTER">6
  81. </TD>
  82. <TD>
  83. <P ALIGN="CENTER"><IMG SRC="graphics/left.gif" WIDTH="22" HEIGHT="13" ALIGN="BOTTOM" ALT="<===" BORDER="0">
  84. </TD>
  85. <TD WIDTH="80%">ACK</TD>
  86. </TR>
  87. <TR>
  88. <TD WIDTH="7%">
  89. <P ALIGN="CENTER">7
  90. </TD>
  91. <TD>
  92. <P ALIGN="CENTER"><IMG SRC="graphics/right.gif" WIDTH="22" HEIGHT="13" ALIGN="BOTTOM" ALT="===>" BORDER="0">
  93. </TD>
  94. <TD WIDTH="80%">EOT or another VAR. If var, go to step 2.</TD>
  95. </TR>
  96. <TR>
  97. <TD WIDTH="7%">
  98. <P ALIGN="CENTER">8
  99. </TD>
  100. <TD>
  101. <P ALIGN="CENTER"><IMG SRC="graphics/left.gif" WIDTH="22" HEIGHT="13" ALIGN="BOTTOM" ALT="<===" BORDER="0">
  102. </TD>
  103. <TD WIDTH="80%">ACK</TD>
  104. </TR>
  105. </TABLE>
  106. <p></P>
  107. <P>The data packet contains the variable data. For information on variable formats, <A HREF="vars.html">click here</A>.</P>
  108. <P><U>Example (PC sending variables to TI):</U><BR>
  109. <TABLE BORDER="0" CELLSPACING="0" WIDTH="100%">
  110. <TR>
  111. <TD BGCOLOR="#CCFFCC">PC:</TD>
  112. <TD WIDTH="50%" BGCOLOR="#CCFFCC"><B><TT>73&nbsp;06&nbsp;0D&nbsp;00&nbsp;</TT></B><TT>09&nbsp;00&nbsp;00&nbsp;41&nbsp;00&nbsp;00&nbsp;00&nbsp;00&nbsp;00&nbsp;00&nbsp;00&nbsp;00&nbsp;00&nbsp;<B>4A&nbsp;00</B></TT></TD>
  113. <TD WIDTH="50%" BGCOLOR="#CCFFCC"><I>Variable Header: Real Number &quot;A&quot;</I></TD>
  114. </TR>
  115. <TR>
  116. <TD BGCOLOR="#FFCCCC">TI:</TD>
  117. <TD WIDTH="50%" BGCOLOR="#FFCCCC"><B><TT>73&nbsp;56&nbsp;00&nbsp;00</TT></B></TD>
  118. <TD WIDTH="50%" BGCOLOR="#FFCCCC"><I>Acknowledgement of header</I></TD>
  119. </TR>
  120. <TR>
  121. <TD BGCOLOR="#FFCCCC">&nbsp;</TD>
  122. <TD WIDTH="50%" BGCOLOR="#FFCCCC"><B><TT>73&nbsp;09&nbsp;00&nbsp;00</TT></B></TD>
  123. <TD WIDTH="50%" BGCOLOR="#FFCCCC"><I>Clear to send variable</I></TD>
  124. </TR>
  125. <TR>
  126. <TD BGCOLOR="#CCFFCC">PC:</TD>
  127. <TD WIDTH="50%" BGCOLOR="#CCFFCC"><B><TT>73&nbsp;56&nbsp;00&nbsp;00</TT></B></TD>
  128. <TD WIDTH="50%" BGCOLOR="#CCFFCC"><I>Acknowledgement of CTS</I></TD>
  129. </TR>
  130. <TR>
  131. <TD BGCOLOR="#CCFFCC">&nbsp;</TD>
  132. <TD WIDTH="50%" BGCOLOR="#CCFFCC"><B><TT>73&nbsp;15&nbsp;09&nbsp;00&nbsp;</TT></B><TT>00&nbsp;80&nbsp;12&nbsp;56&nbsp;34&nbsp;78&nbsp;85&nbsp;25&nbsp;55&nbsp;<B>93&nbsp;02</B></TT></TD>
  133. <TD WIDTH="50%" BGCOLOR="#CCFFCC"><I>Variable data: &quot;1.2563478852555&quot;</I></TD>
  134. </TR>
  135. <TR>
  136. <TD BGCOLOR="#FFCCCC">TI:</TD>
  137. <TD WIDTH="50%" BGCOLOR="#FFCCCC"><B><TT>73&nbsp;56&nbsp;00&nbsp;00</TT></B></TD>
  138. <TD WIDTH="50%" BGCOLOR="#FFCCCC"><I>Acknowledgement of data</I></TD>
  139. </TR>
  140. <TR>
  141. <TD BGCOLOR="#CCFFCC">PC:</TD>
  142. <TD WIDTH="50%" BGCOLOR="#CCFFCC"><B><TT>73&nbsp;06&nbsp;0D&nbsp;00&nbsp;</TT></B><TT>09&nbsp;00&nbsp;00&nbsp;42&nbsp;00&nbsp;00&nbsp;00&nbsp;00&nbsp;00&nbsp;00&nbsp;00&nbsp;00&nbsp;00&nbsp;<B>4B&nbsp;00</B></TT></TD>
  143. <TD WIDTH="50%" BGCOLOR="#CCFFCC"><I>Variable Header: Real Number &quot;B&quot;</I></TD>
  144. </TR>
  145. <TR>
  146. <TD BGCOLOR="#FFCCCC">TI:</TD>
  147. <TD WIDTH="50%" BGCOLOR="#FFCCCC"><B><TT>73&nbsp;56&nbsp;00&nbsp;00</TT></B></TD>
  148. <TD WIDTH="50%" BGCOLOR="#FFCCCC"><I>Acknowledgement of header</I></TD>
  149. </TR>
  150. <TR>
  151. <TD BGCOLOR="#FFCCCC">&nbsp;</TD>
  152. <TD WIDTH="50%" BGCOLOR="#FFCCCC"><B><TT>73&nbsp;36&nbsp;01&nbsp;00&nbsp;</TT></B><TT>02&nbsp;<B>02&nbsp;00</B></TT></TD>
  153. <TD WIDTH="50%" BGCOLOR="#FFCCCC"><I>Skip variable</I></TD>
  154. </TR>
  155. <TR>
  156. <TD BGCOLOR="#CCFFCC">PC:</TD>
  157. <TD WIDTH="50%" BGCOLOR="#CCFFCC"><B><TT>73&nbsp;56&nbsp;00&nbsp;00</TT></B></TD>
  158. <TD WIDTH="50%" BGCOLOR="#CCFFCC"><I>Acknowledgement of variable skip</I></TD>
  159. </TR>
  160. <TR>
  161. <TD BGCOLOR="#CCFFCC">&nbsp;</TD>
  162. <TD WIDTH="50%" BGCOLOR="#CCFFCC"><B><TT>73&nbsp;92&nbsp;00&nbsp;00</TT></B></TD>
  163. <TD WIDTH="50%" BGCOLOR="#CCFFCC"><I>No more variables</I></TD>
  164. </TR>
  165. <TR>
  166. <TD BGCOLOR="#FFCCCC">TI:</TD>
  167. <TD WIDTH="50%" BGCOLOR="#FFCCCC"><B><TT>73&nbsp;56&nbsp;00&nbsp;00</TT></B></TD>
  168. <TD WIDTH="50%" BGCOLOR="#FFCCCC"><I>Acknowledgement of EOT</I></TD>
  169. </TR>
  170. </TABLE>
  171. <BR>
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  173. <TR>
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  177. Screenshots</A>
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  182. Table of Contents</A>
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  187. Silent Transfers</A>
  188. </TD>
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  192. <I>Site maintained by Romain Li&eacute;vin (</I><A HREF="mailto:roms@lpg.ticalc.org"><I>roms@lpg.ticalc.org</I></A><I>)
  193. and Tim Singer (</I><A HREF="mailto:tsinger@gladstone.uoregon.edu"><I>tsinger@gladstone.uoregon.edu</I></A><I>)</I>
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