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boards:ecb:backplane-3:start [2017/03/18 13:16]
will
boards:ecb:backplane-3:start [2017/03/19 07:50] (current)
will [Notes on Construction]
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 The ECB Mini Backplane is a backplane card for the EuroCard Bus which allows up to 3 ECB cards to be connected at one time. The ECB Mini Backplane is a backplane card for the EuroCard Bus which allows up to 3 ECB cards to be connected at one time.
  
-The backplane features a power input, power switch, LED to indicate when power is on, and a 2-pin input header to connect a reset switch. On the reverse ​side of the PCB the ECB pin rows and columns are labelled ​for quick identification and a key listing the ECB signal names is provided.+The backplane features a power input, power switch, LED to indicate when power is on, and a 2-pin input header to connect a reset switch. On the back side of the PCB the ECB pin rows and columns are labeled ​for quick identificationand a key listing the ECB signal names is provided.
  
-The reset input header is connected to pin C31 for KONTRON ​compatible reset (this is recommended over the legacy "​N8"​ style reset).+The reset input header is connected to pin C31 for Kontron ​compatible reset (which is recommended over the legacy "​N8"​ style reset).
  
-The board is designed to be used either flat on a table with the cards standing up, or on its side with the backplane connectors and power switch above the ECB cards and both backplane and cards resting on the table.+The board is designed to be used either flat on a table with the cards standing up, or on its side with the backplane connectors and power switch above the ECB cards and both backplane and cards resting ​their edges on the table.
  
 The PCBs are manufactured using 2.0mm thick FR4 with ENIG finish. The PCBs are manufactured using 2.0mm thick FR4 with ENIG finish.
 +
  
 ===== Schematic ===== ===== Schematic =====
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 If you will be using the Interrupt or DMA chains you will need to fit four wire jumpers connecting /BAO to /BAI and /IEO to /IEI as indicated on the PCB. The only Retrobrew Computers board to use these signals is the "Zilog Peripherals"​ board so these jumpers can generally be omitted. If you will be using the Interrupt or DMA chains you will need to fit four wire jumpers connecting /BAO to /BAI and /IEO to /IEI as indicated on the PCB. The only Retrobrew Computers board to use these signals is the "Zilog Peripherals"​ board so these jumpers can generally be omitted.
  
-If you intend to use the board lying flat with the cards standing up, fit four 3M BumpOn rubber domes on the rear to prevent scratching your work surfaces. If you intend to use the board vertically with the ECB cards lying against the desk be aware that many cards will be "​upside-down",​ take care to ensure the electrons don't fall out.+If you intend to use the board lying flat with the cards standing up, fit four 3M BumpOn rubber domes on the rear to prevent scratching your work surfaces. If you intend to use the board vertically with the ECB cards lying against the desk be aware that many cards will be "​upside-down", ​so please ​take care to ensure the electrons don't fall out. 
  
 ===== Photographs ===== ===== Photographs =====
boards/ecb/backplane-3/start.1489857406.txt.gz · Last modified: 2017/03/18 13:16 by will
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