Visible to Intel only — GUID: jxu1485943067800
Ixiasoft
Visible to Intel only — GUID: jxu1485943067800
Ixiasoft
1.2.1. UIB and eSRAM Pins
Pin Name | Pin Functions | Pin Description | Connection Guidelines |
---|---|---|---|
CLK_ESRAM_[0,1]p | Embedded SRAM (eSRAM) Clock Input | Dedicated positive high speed differential reference clock pin for eSRAM PLL. | Connect this pin to the positive terminal of an LVDS clock source within the range of 10 MHz to 325 MHz. The frequency selected must match the available options provided in the Quartus® Prime ESRAM PLL Reference Clock Frequency selection dialog box. Only DC-coupling is supported. The peak-to-peak jitter of this clock must meet or exceed the following jitter requirements for frequency bandwidth from 10 kHz to 1/2 of the frequency chosen:
Connect directly to GND if unused. The input reference clock must be stable and free-running at device power-up for proper PLL calibrations and a successful configuration. |
CLK_ESRAM_[0,1]n | eSRAM Clock Input | Dedicated complement high speed differential reference clock pin for eSRAM PLL. | Connect this pin to the negative terminal of an LVDS clock source within the range of 10 MHz to 325 MHz. The frequency selected must match the available options provided in the Quartus® Prime ESRAM PLL Reference Clock Frequency selection dialog box. Only DC-coupling is supported. The peak-to-peak jitter of this clock must meet or exceed the following jitter requirements for frequency bandwidth from 10 kHz to 1/2 of the frequency chosen:
Connect directly to GND if unused. The input reference clock must be stable and free-running at device power-up for proper PLL calibrations and a successful configuration. |
UIB_PLL_REF_CLK_[00,01]p | UIB Clock Input | Dedicated positive high speed differential reference clock pin for UIB PLL. | Connect this pin to the positive terminal of an LVDS clock source within the range of 10 MHz to 325 MHz. The frequency selected must match the available options provided in the Quartus® Prime HBM2 interface PLL Reference Clock Frequency selection dialog box. Only DC-coupling is supported. The peak-to-peak jitter of this clock must meet or exceed the following jitter requirements for frequency bandwidth from 10 kHz to 1/2 of the frequency chosen:
You must provide a stable reference clock to this pin before device configuration begins when the high-bandwidth memory (HBM2) IP is included in your design. Connect directly to GND if unused. The input reference clock must be stable and free-running at device power-up for proper PLL calibrations and a successful configuration. |
UIB_PLL_REF_CLK_[00,01]n | UIB Clock Input | Dedicated complement high speed differential reference clock pin for UIB PLL. | Connect this pin to the negative terminal of an LVDS clock source within the range of 10 MHz to 325 MHz. The frequency selected must match the available options provided in the Quartus® Prime HBM2 interface PLL Reference Clock Frequency selection dialog box. Only DC-coupling is supported. The peak-to-peak jitter of this clock must meet or exceed the following jitter requirements for frequency bandwidth from 10 kHz to 1/2 of the frequency chosen:
You must provide a stable reference clock to this pin before device configuration begins when the high-bandwidth memory (HBM2) IP is included in your design. Connect directly to GND if unused. The input reference clock must be stable and free-running at device power-up for proper PLL calibrations and a successful configuration. |
RREF_ESRAM_[0,1] | eSRAM RREF Input | Reference resistor pin for UIB PLL and eSRAM PLL, specific to top (T) and bottom (B) of device. | If any UIB PLL or eSRAM PLL on the top or bottom side of the device is used, the corresponding RREF pin on that side of the device (top or bottom) must connect to its own individual 2K Ω ±1% resistor to GND. The PCB trace between this pin and the reference resistor needs to be carefully routed to avoid any aggressor signals. |
UIB_RREF_[00,01] | UIB RREF Input | Reference resistor pin for UIB IO ZQ calibration. | Connect each pin through an individual 240 Ω ±1% resistor to GND. No resistor sharing between pins is allowed. Leave this pin floating if unused. |