The ZCU216 board provides fixed and variable clock sources for the ZU49DR Zynq UltraScale+ RFSoC. The following table lists the source devices for each clock.
| Clock (Net) Name | Frequency | Clock Source |
|---|---|---|
| Fixed Frequency Clocks | ||
| PS_REF_CLK | 33.33 MHz | U43 SI5341B Clock Generator (0x76) |
| CLK_100 | 100 MHz | |
| CLK_125 | 125 MHz | |
| GTR_REF_CLK_SATA | 125 MHz | |
| GTR_REF_CLK_USB3 | 26 MHz | |
| Programmable Frequency Clocks | ||
| USER_SI570_C0 | 300 MHz (Default) | U47 SI570 I2C PROG. OSC. (0x5D) |
| USER_SI570_C1 | 300 MHz (Default) | U130 SI570 I2C PROG. OSC. (0x5D) |
| USER_MGT_SI570_CLOCK | 156.25 MHz (Default) | U48 SI570 I2C PROG. OSC. (0x5D) |
| USER_SMA_MGT_CLOCK | User-Provided Source | J6 (P)/J7 (N) SMA CONN. |
| Various 8A34001 eCPRI Clocks | Various | U409 8A34001 (0x58) |
The following table lists the connections for each clock.
| Clock Source Ref. Des. and Pin | Net Name | I/O Standard | ZU49DR (U1) Pin |
|---|---|---|---|
| U43 SI5341B Clock Generator | |||
| U43.59 | PS_REF_CLK (series R300) | 1 | U32 |
| U43.45 | CLK_125_P | LVDS | A13 |
| U43.44 | CLK_125_N | LVDS | A12 |
| U43.42 | CLK_100_P | LVDS | G12 |
| U43.41 | CLK_100_N | LVDS | G11 |
| U43.35 | GTR_REF_CLK_SATA_P | 2 | AB34 |
| U43.34 | GTR_REF_CLK_SATA_N | 2 | AB35 |
| U43.31 | GTR_REF_CLK_USB3_P | 2 | AC36 |
| U43.30 | GTR_REF_CLK_USB3_N | 2 | AC37 |
| U47 SI570 I2C Prog. Oscillator DDR4 C0 I/F (300 MHz default) | |||
| U47.4 | USER_SI570_C0_P | LVDS | AR20 |
| U47.5 | USER_SI570_C0_N | LVDS | AR19 |
| U130 SI570 I2C Prog. Oscillator DDR4 C1 I/F (300 MHz default) | |||
| U130.4 | USER_SI570_C1_P | LVDS | G17 |
| U130.5 | USER_SI570_C1_N | LVDS | F17 |
| U49 SI570 I2C Prog. Oscillator (156.250 MHz default) | |||
| U48.4 | USER_MGT_SI570_CLOCK_P | 2 | H34 |
| U48.5 | USER_MGT_SI570_CLOCK_N | 2 | H35 |
| J79 (P)/J80 (N) SMA Connectors | |||
| J6 | USER_SMA_MGT_CLOCK_P | 2 | M34 |
| J7 | USER_SMA_MGT_CLOCK_N | 2 | M35 |
| U409 8A34001 eCPRI Clock | |||
| U409.A9 (Q1) | 8A34001_Q1_OUT_P | 2 | Y39 |
| U409.B9 (Q1) | 8A34001_Q1_OUT_N | 2 | Y40 |
| U409.A11 (Q2) | 8A34001_Q2_OUT_P | LVDS | AT23 |
| U409.B11 (Q2) | 8A34001_Q2_OUT_N | LVDS | AT24 |
| U409.A12 (Q3) | 8A34001_Q3_OUT_P | LVDS | H30 |
| U409.B12 (Q3) | 8A34001_Q3_OUT_N | LVDS | G30 |
| U409.M8 (Q7) | 8A34001_Q7_OUT_P | 2 | T34 |
| U409.L8 (Q7) | 8A34001_Q7_OUT_N | 2 | T35 |
| U409.A6 (Q8) | 8A34001_Q8_OUT_P | LVDS | J21 |
| U409.B6 (Q8) | 8A34001_Q8_OUT_N | LVDS | H21 |
| U409.M6 (Q11) | 8A34001_Q11_OUT_P | 2 | Y34 |
| U409.L6 (Q11) | 8A34001_Q11_OUT_N | 2 | Y35 |
|
|||