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|                                 ECO   REPORT                                 |
|                                                                    Page   1  |
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|  D:/15.7_courses/ftb/pcb/intro.brd                                           |
|                                                    Mon Mar 05 16:15:05 2007  |
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| NET CHANGES                                                                  |
|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
|   net  name |  type of change |                net     pins                  |
|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
  GND          pins ADDED TO this existing net (pins not previously on any net)
                                 C1.2                           
                                 C2.2                           
                                 C3.2                           
                                 C4.2                           
                                 C5.2                           
                                 C6.2                           
                                 C7.2                           
                                 C8.2                           
                                 U1.27                          
                                 U2.27                          
                                 U3.27                          
                                 U4.27                          
                                 U5.27                          
                                 U6.27                          
                                 U7.27                          
                                 U8.27                          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RA<0>        pins ADDED TO this new net
                                 U1.5           U2.5           U3.5           
                                 U4.5           U5.5           U6.5           
                                 U7.5           U8.5           
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RA<10>       pins ADDED TO this new net
                                 U1.21          U2.21          U3.21          
                                 U4.21          U5.21          U6.21          
                                 U7.21          U8.21          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RA<11>       pins ADDED TO this new net
                                 U1.20          U2.20          U3.20          
                                 U4.20          U5.20          U6.20          
                                 U7.20          U8.20          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RA<12>       pins ADDED TO this new net
                                 U1.19          U2.19          U3.19          
                                 U4.19          U5.19          U6.19          
                                 U7.19          U8.19          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RA<13>       pins ADDED TO this new net
                                 U1.18          U2.18          U3.18          
                                 U4.18          U5.18          U6.18          
                                 U7.18          U8.18          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RA<14>       pins ADDED TO this new net
                                 U1.15          U2.15          U3.15          
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|                                 ECO   REPORT                                 |
|                                                                    Page   2  |
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|  D:/15.7_courses/ftb/pcb/intro.brd                                           |
|                                                    Mon Mar 05 16:15:05 2007  |
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| NET CHANGES                                                                  |
|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
|   net  name |  type of change |                net     pins                  |
|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
                                 U4.15          U5.15          U6.15          
                                 U7.15          U8.15          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RA<15>       pins ADDED TO this new net
                                 U1.14          U2.14          U3.14          
                                 U4.14          U5.14          U6.14          
                                 U7.14          U8.14          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RA<1>        pins ADDED TO this new net
                                 U1.4           U2.4           U3.4           
                                 U4.4           U5.4           U6.4           
                                 U7.4           U8.4           
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RA<2>        pins ADDED TO this new net
                                 U1.3           U2.3           U3.3           
                                 U4.3           U5.3           U6.3           
                                 U7.3           U8.3           
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RA<3>        pins ADDED TO this new net
                                 U1.2           U2.2           U3.2           
                                 U4.2           U5.2           U6.2           
                                 U7.2           U8.2           
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RA<4>        pins ADDED TO this new net
                                 U1.32          U2.32          U3.32          
                                 U4.32          U5.32          U6.32          
                                 U7.32          U8.32          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RA<5>        pins ADDED TO this new net
                                 U1.31          U2.31          U3.31          
                                 U4.31          U5.31          U6.31          
                                 U7.31          U8.31          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RA<6>        pins ADDED TO this new net
                                 U1.30          U2.30          U3.30          
                                 U4.30          U5.30          U6.30          
                                 U7.30          U8.30          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RA<7>        pins ADDED TO this new net
                                 U1.29          U2.29          U3.29          
                                 U4.29          U5.29          U6.29          
                                 U7.29          U8.29          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RA<8>        pins ADDED TO this new net
                                 U1.28          U2.28          U3.28          
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|                                 ECO   REPORT                                 |
|                                                                    Page   3  |
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|  D:/15.7_courses/ftb/pcb/intro.brd                                           |
|                                                    Mon Mar 05 16:15:05 2007  |
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| NET CHANGES                                                                  |
|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
|   net  name |  type of change |                net     pins                  |
|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
                                 U4.28          U5.28          U6.28          
                                 U7.28          U8.28          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RA<9>        pins ADDED TO this new net
                                 U1.22          U2.22          U3.22          
                                 U4.22          U5.22          U6.22          
                                 U7.22          U8.22          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RCS1         pins ADDED TO this new net
                                 U3.6           U4.13          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RCS2         pins ADDED TO this new net
                                 U5.6           U6.13          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RCS3         pins ADDED TO this new net
                                 U7.6           U8.13          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RCSO         pins ADDED TO this new net
                                 U1.6           U2.13          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RD<0>        pins ADDED TO this new net
                                 U2.26          U4.26          U6.26          
                                 U8.26          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RD<1>        pins ADDED TO this new net
                                 U2.23          U4.23          U6.23          
                                 U8.23          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RD<2>        pins ADDED TO this new net
                                 U2.10          U4.10          U6.10          
                                 U8.10          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RD<3>        pins ADDED TO this new net
                                 U2.7           U4.7           U6.7           
                                 U8.7           
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RD<4>        pins ADDED TO this new net
                                 U1.26          U3.26          U5.26          
                                 U7.26          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RD<5>        pins ADDED TO this new net
                                 U1.23          U3.23          U5.23          
                                 U7.23          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RD<6>        pins ADDED TO this new net
|------------------------------------------------------------------------------|
|                                 ECO   REPORT                                 |
|                                                                    Page   4  |
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|  D:/15.7_courses/ftb/pcb/intro.brd                                           |
|                                                    Mon Mar 05 16:15:05 2007  |
|------------------------------------------------------------------------------|
| NET CHANGES                                                                  |
|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
|   net  name |  type of change |                net     pins                  |
|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
                                 U1.10          U3.10          U5.10          
                                 U7.10          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RD<7>        pins ADDED TO this new net
                                 U1.7           U3.7           U5.7           
                                 U7.7           
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  RWE          pins ADDED TO this new net
                                 U1.11          U2.12          U3.11          
                                 U4.12          U5.11          U6.12          
                                 U7.11          U8.12          
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
  VCC          pins ADDED TO this existing net (pins not previously on any net)
                                 C1.1                           
                                 C2.1                           
                                 C3.1                           
                                 C4.1                           
                                 C5.1                           
                                 C6.1                           
                                 C7.1                           
                                 C8.1                           
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|                                 ECO   REPORT                                 |
|                                                                    Page   5  |
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|  D:/15.7_courses/ftb/pcb/intro.brd                                           |
|                                                    Mon Mar 05 16:15:05 2007  |
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| NET PROPERTIES added to board drawing                                        |
|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
|     net  name   |   property   |                    value                    |
|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
 GND                      VOLTAGE 0V
 RA<0>                   BUS_NAME RA
 RA<10>                  BUS_NAME RA
 RA<11>                  BUS_NAME RA
 RA<12>                  BUS_NAME RA
 RA<13>                  BUS_NAME RA
 RA<14>                  BUS_NAME RA
 RA<15>                  BUS_NAME RA
 RA<1>                   BUS_NAME RA
 RA<2>                   BUS_NAME RA
 RA<3>                   BUS_NAME RA
 RA<4>                   BUS_NAME RA
 RA<5>                   BUS_NAME RA
 RA<6>                   BUS_NAME RA
 RA<7>                   BUS_NAME RA
 RA<8>                   BUS_NAME RA
 RA<9>                   BUS_NAME RA
 RD<0>                   BUS_NAME RD
 RD<1>                   BUS_NAME RD
 RD<2>                   BUS_NAME RD
 RD<3>                   BUS_NAME RD
 RD<4>                   BUS_NAME RD
 RD<5>                   BUS_NAME RD
 RD<6>                   BUS_NAME RD
 RD<7>                   BUS_NAME RD
 VCC                      VOLTAGE 5V
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|                                 ECO   REPORT                                 |
|                                                                    Page   6  |
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|  D:/15.7_courses/ftb/pcb/intro.brd                                           |
|                                                    Mon Mar 05 16:15:05 2007  |
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| COMPONENT DEFINITION added to board drawing                                  |
|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
|    device type                                                               |
|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
 CAP_NP_SMDCAP-.1UF,+20%/-80%
 TC55B4257_SOIC-BASE
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|                                 ECO   REPORT                                 |
|                                                                    Page   7  |
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|  D:/15.7_courses/ftb/pcb/intro.brd                                           |
|                                                    Mon Mar 05 16:15:05 2007  |
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| COMPONENTS ADDED to board drawing                                            |
|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
|    ref des        |    device type                                           |
|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
 C1                  CAP_NP_SMDCAP-.1UF,+20%/-80% 
 C2                  CAP_NP_SMDCAP-.1UF,+20%/-80% 
 C3                  CAP_NP_SMDCAP-.1UF,+20%/-80% 
 C4                  CAP_NP_SMDCAP-.1UF,+20%/-80% 
 C5                  CAP_NP_SMDCAP-.1UF,+20%/-80% 
 C6                  CAP_NP_SMDCAP-.1UF,+20%/-80% 
 C7                  CAP_NP_SMDCAP-.1UF,+20%/-80% 
 C8                  CAP_NP_SMDCAP-.1UF,+20%/-80% 
 U1                  TC55B4257_SOIC-BASE   
 U2                  TC55B4257_SOIC-BASE   
 U3                  TC55B4257_SOIC-BASE   
 U4                  TC55B4257_SOIC-BASE   
 U5                  TC55B4257_SOIC-BASE   
 U6                  TC55B4257_SOIC-BASE   
 U7                  TC55B4257_SOIC-BASE   
 U8                  TC55B4257_SOIC-BASE   
|------------------------------------------------------------------------------|
|                                 ECO   REPORT                                 |
|                                                                    Page   8  |
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|  D:/15.7_courses/ftb/pcb/intro.brd                                           |
|                                                    Mon Mar 05 16:15:05 2007  |
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| SLOT PROPERTIES added to board drawing                                       |
|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
|   slot_id    |   x   |   y   |   property   |             value              |
|- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
 C1.2                           PRIM_FILE      D:/15.7_courses/ftb/classlib/cap_np/chips/chips.prt
 C2.2                           PRIM_FILE      D:/15.7_courses/ftb/classlib/cap_np/chips/chips.prt
 C3.2                           PRIM_FILE      D:/15.7_courses/ftb/classlib/cap_np/chips/chips.prt
 C4.2                           PRIM_FILE      D:/15.7_courses/ftb/classlib/cap_np/chips/chips.prt
 C5.2                           PRIM_FILE      D:/15.7_courses/ftb/classlib/cap_np/chips/chips.prt
 C6.2                           PRIM_FILE      D:/15.7_courses/ftb/classlib/cap_np/chips/chips.prt
 C7.2                           PRIM_FILE      D:/15.7_courses/ftb/classlib/cap_np/chips/chips.prt
 C8.2                           PRIM_FILE      D:/15.7_courses/ftb/classlib/cap_np/chips/chips.prt
 U1.11                          PRIM_FILE      D:/15.7_courses/ftb/classlib/tc55b4257/chips/chips.prt
 U2.11                          PRIM_FILE      D:/15.7_courses/ftb/classlib/tc55b4257/chips/chips.prt
 U3.11                          PRIM_FILE      D:/15.7_courses/ftb/classlib/tc55b4257/chips/chips.prt
 U4.11                          PRIM_FILE      D:/15.7_courses/ftb/classlib/tc55b4257/chips/chips.prt
 U5.11                          PRIM_FILE      D:/15.7_courses/ftb/classlib/tc55b4257/chips/chips.prt
 U6.11                          PRIM_FILE      D:/15.7_courses/ftb/classlib/tc55b4257/chips/chips.prt
 U7.11                          PRIM_FILE      D:/15.7_courses/ftb/classlib/tc55b4257/chips/chips.prt
 U8.11                          PRIM_FILE      D:/15.7_courses/ftb/classlib/tc55b4257/chips/chips.prt
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|   total ECO changes reported  260                                            |
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