1. EVLA MONITOR & CONTROL CDR
MIB INTERFACES TO DEVICES
EVLA Monitor & Control CDR
October 20, 2004

2. The Need For Interface Boards
Sometimes There Are More SPI Devices Than SPI Select Lines On The MIB
A/D Conversions And Temperature Sensors Are Required
Level Conversions For Digital Signals
Some Chips Cannot Be Placed On Boards With Thick Copper
EVLA Monitor & Control CDR
October 20, 2004

3. MIB Connection To Other Boards
Other Boards Can Connect With MIB By Plugging Directly To Top Or Bottom
Other Boards Can Connect With MIB By Ribbon Cable
MIB Can Be Part Of A Stack Of Boards
EVLA Monitor & Control CDR
October 20, 2004

4. Example Interface Boards
Analog To Digital Board – Used In Several Modules
Power Supply Interface
DAQ2 Board
Down Converter Interface “SPI” Board
EVLA Monitor & Control CDR
October 20, 2004