X1a - Generic SPI Module
Description
The X1a is a generic rudimentary design of an SPI module. It is meant to give users an initial design to build on in case they aim to build their own home-made SPI module according to their particular needs.
The X1a includes the cassette, a front panel, and built-in programmed logic that follows the standard SPI rack behavior. The front panel may be drilled to fit any desired type of connector. The cassette can be used to accommodate unique circuits. The programmed logic provides a variety of interfaces including: 4 SPI buses, 8 input and 8 output digital signals, and 4 logic / triggers lines from the backplane into the module:
- 4 SPI buses - these are available on jumpers JP1 through JP4.
- 8 input lines ('write') to the module - these are available on jumpers JP7 through JP8.
- 8 output lines ('read') from the module - these are available on jumpers JP5 through JP6.
- 4 generic inputs inputs - these are available on jumper JP9. These are always-on connections from the rack back-plane to the module, and can be used to receive trigger / logic signals from other modules in the rack. They are implemented in hardware. Software not influence these signals.
For info on how to operate these buses see the software page. For complete details on the hardware implementation, such as exact signal-to-pin mapping, please request with your order.