CS4281_ACCTL
BA0WRITE4(sc, CS4281_ACCTL, ACCTL_ESYN);
BA0WRITE4(sc, CS4281_ACCTL, ACCTL_ESYN | ACCTL_VFRM);
BA0WRITE4(sc, CS4281_ACCTL, acctl);
BA0WRITE4(sc, CS4281_ACCTL, acctl);
while ((BA0READ4(sc, CS4281_ACCTL) & ACCTL_DCV)) {
BA0WRITE4(sc, CS4281_ACCTL, 0);
BA0WRITE4(sc, CS4281_ACCTL, ACCTL_ESYN);
BA0WRITE4(sc, CS4281_ACCTL, ACCTL_ESYN | ACCTL_VFRM);
BA0WRITE4(sc, CS4281_ACCTL, 0);