HelenOS sources

RCTL_BAM          785 uspace/drv/nic/e1k/e1k.c 	rctl = rctl | RCTL_BAM;
RCTL_BAM          797 uspace/drv/nic/e1k/e1k.c 	rctl = rctl & ~RCTL_BAM;
RCTL_BAM         1370 uspace/drv/nic/e1k/e1k.c 	E1000_REG_WRITE(e1000, E1000_RCTL, RCTL_BAM);
HelenOS homepage, sources at GitHub