FPGA programming modes
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The Xilinx Spartan-3A FPGA we will be using on the SiPM control board can be programmed using any of several modes. This table, adapted from the User Guide, Table 2-1, shows the available programming modes and how to select them by setting the M[2:0] pins on the FPGA.
For information about the other pins used in the programming process, see SiPM digital control board netlist.
| M[2:0] | Programming Mode |
| <0:0:0> | Master serial (platform flash) mode |
| <0:0:1> | Master SPI mode |
| <0:1:0> | BPI up |
| <0:1:1> | Reserved |
| <1:0:0> | Reserved |
| <1:0:1> | JTAG mode |
| <1:1:0> | Slave parallel mode |
| <1:1:1> | Slave serial mode |