SK_TIMERCTL       877 dev/pci/if_msk.c 	CSR_WRITE_1(sc, SK_TIMERCTL, SK_IMCTL_STOP);
SK_TIMERCTL       878 dev/pci/if_msk.c 	CSR_WRITE_1(sc, SK_TIMERCTL, SK_IMCTL_IRQ_CLEAR);