BGE_HALFTICK
#define BGE_CYCLIC_PERIOD (4*BGE_HALFTICK) /* ~1.0s */
#define BGE_SERDES_STABLE_TIME (3*BGE_HALFTICK) /* ~0.8s */
#define BGE_PHY_STABLE_TIME (11*BGE_HALFTICK) /* ~3.0s */
#define BGE_LINK_SETTLE_TIME (111*BGE_HALFTICK) /* ~30.0s */