Front End Driver

A total of 32 front end drivers (FEDs) [9] are setup in two 9U VME crates located in the CMS underground service room. The optical fibers connecting the AOHs to 

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Figure 7.6 presents an overview of the pixel readout and control system. A detailed description can be found in [7]. The system provides a very complex functionality and consists of three main parts an analog read-out link from the BPIX modules to the front-end drivers (FED), a digital control link from the pixel front-end controller (pxFEC) to the modules and a slow control link from a standard front-end controller (FEC) to the supply tube to configure the readout electronics hosted on the supply tube. The individual components of the pixel readout and control system are described in more detail in the following. 

Carroll, D.L. FORTRAN Genetic Algorithm Front-End Driver Code, http //cuaerospace.com/carroll/ga.html. 

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