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On-board Si5338 clock generator chip is used to generate clocks with 25 MHz oscillator connected to the pin IN3 as input reference. There is a I2C bus connection between the FPGA bank 14 (master) and clock generator chip (slave) which can be used to program output frequencies. See the reference design for more information.
CLK Output | FPGA Bank | FPGA Pin | IO Standard | Net Name | Default Freq | Note |
---|---|---|---|---|---|---|
CLK0 | - | - | - | - | -- | N.C. |
CLK1 | - | - | - | - | -- | N.C. |
CLK2 | 216 | F6/E6 | Auto | MGT_CLK0_P/N | 125 MHz | GTP transceiver clock. |
CLK3 | 35 | H4/G4 | LVDS | PLL_CLK_P/N | 200 MHz | AC coupled, board termination |
On-board Peripherals
32 MByte Quad SPI Flash Memory
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Date | Revision | Contributors | Description | ||||||||
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| John Hartfiel |
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v.8 | John Hartfiel |
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2017-05-28 | v.6 | Jan Kumann |
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2017-02-07 | v.1 | Jan Kumann |
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