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Scroll Title |
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anchor | Table_OBP |
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title | On board peripherals |
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Scroll Table Layout |
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orientation | portrait |
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sortDirection | ASC |
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repeatTableHeaders | default |
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style | |
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widths | |
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sortByColumn | 1 |
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sortEnabled | false |
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cellHighlighting | true |
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Quad SPI Flash Memory
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Scroll Title |
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anchor | Table_OBP_CLK |
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title | Osillators |
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Scroll Table Layout |
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orientation | portrait |
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sortDirection | ASC |
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repeatTableHeaders | default |
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style | |
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widths | |
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sortByColumn | 1 |
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sortEnabled | false |
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cellHighlighting | true |
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Designator | Description | Frequency | Note |
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U14, U21 | MEMS Oscillator | 25MHz |
| U12 | MEMS Oscillator | 52MHz |
| U15 | Programmable Clock Generator | Variable |
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Programmable Clock Generator
There is a Silicon Labs I2C programmable clock generator on-board (U10) in order to generate reference clocks for the module. Programming can be done using I2C via PIN header J3. The I2C Address is 0x69.
Scroll Title |
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anchor | Table_OBP_PCLK |
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title | Programmable Clock Generator Inputs and Outputs |
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Scroll Table Layout |
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orientation | portrait |
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sortDirection | ASC |
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repeatTableHeaders | default |
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sortByColumn | 1 |
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sortEnabled | false |
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cellHighlighting | true |
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U15 Pin
| Signal | Connected to | Direction | Note |
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IN0 | IN0_P | Oscillator, U14 | Input |
| IN1 | - | N.C | - |
| IN2 | EXT_CLK_IN1 | B2B,J2 | Input |
| IN3 | - | N.C |
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| nRST | PLL_RSTN | FPGA Bank 65,U1 | Input |
| SCL | MIO32_I2C1_SCL | Pin Header, J3 | Input |
| SDA | MIO33_I2C1_SDA | Pin Header, J3 | Input |
| OUT0...5 | CLKA...F | B2B,J2 | Output | 6x Differential Clocks | OUT6 | B128_CLK0 | FPGA Bank 128,U1 | Output |
| OUT7 | B129_CLK0 | FPGA Bank 129,U1 | Output |
| OUT8 | CLK8 | FPGA Bank 65,U1 | Output |
| OUT9 | PSMGT_100MHZ | FPGA Bank 505,U1 | Output |
| OUT9A | CLK0A_100MHZ | B2B, J1 | Output |
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Power and Power-On Sequence
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