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There are two 4-bit DIP Switches -witches present on the TEBF0808 carrier board to configure options and set parameters. The table below following section describes the functionalities of the particular switches.
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Table below describes the functionalities of the switches of DIP-switch S4 at their each single positions:
DIP-switch S4 | Position ON | Position OFF | Notes |
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S4-1 | PUDC_B is Low | PUDC_B is HIGH | Internal pull-up resistors during configuration are enabled at ON-position, means I/O's are 3-stated until configuration of the FPGA completes. |
S4-2 | x | x | not connected |
S4-3 | SC CPLDs' JTAG enabled | SC CPLDs' JTAG disabled | JTAG interface is enabled on both SC CPLDs, as this CPLDs are configured in a casdaced JTAG chain. |
S4-4 | DC-DC converter U18 (5V) enabled | DC-DC converter U18 (5V) not manually enabled | In OFF-position, the DC-DC-converter will be still enabled by the Enable-signal ('5V_EN') of SC CDPD U39 (wired-OR circuit). |
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The boot mode of the mounted Ultrascale+ Zynq MPSoC modules module will be set in current SC CPLD U39 firmware version as fellow described in the table below:
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