Select Versal adaptive SoCs contain dedicated remote voltage sense pins for VCCINT and its associated ground return. They provide the closest look at the die possible.
The following figure shows recommended sense line routing for adaptive SoCs with dedicated sense pins.
- Place inline 0Ω resistors close to the adaptive SoC:
- Resistors are required to ensure sense lines are routed as traces and not dropped to the plane.
- Route sense lines as 50Ω loosely coupled differential transmission lines:
- Ground is required to sense true differential between power and ground.
Figure 1. Dedicated Sense Pin Routing
Important: Some packages have reserved sense pins
(such as RSVD_VCCINT_SENSE and RSVD_GND_SENSE). These pins have no connection to the
die and should be left floating (see Reserved Sense Lines).