HECI_H_GS1_ER_PREP
0, HECI_H_GS1_ER_PREP);
HECI_H_GS1_ER_PREP, 0);
u32 gs1_set = prep ? HECI_H_GS1_ER_PREP : 0;
u32 gs1_clr = prep ? 0 : HECI_H_GS1_ER_PREP;