The BST Power-On Reset voltage is with respect to the SW pin. The BST Power-On Reset disables all high-side functionality if the BST-to-SW voltage is below the BST Power-On Reset voltage. The BST Power-On Reset voltage is not specified but is around 5 V. The BST Power-On Reset initiates the one-time determination of the high-side slew-rate setting programmed on the RDRVH pin if the BST-to-SW voltage goes above the BST Power-On Reset voltage.