a9tmr_global_write
a9tmr_global_write(sc, TMR_GBL_CTL, TMR_CTL_ENABLE);
a9tmr_global_write(sc, TMR_GBL_AUTOINC, sc->sc_autoinc);
a9tmr_global_write(sc, TMR_GBL_CTL,
a9tmr_global_write(sc, TMR_GBL_CMP_L, (uint32_t) now);
a9tmr_global_write(sc, TMR_GBL_CMP_H, (uint32_t) (now >> 32));
a9tmr_global_write(sc, TMR_GBL_INT, 1); /* clear interrupt pending */
a9tmr_global_write(sc, TMR_GBL_CTL, ctl);
a9tmr_global_write(sc, TMR_GBL_INT, 1); /* Ack the interrupt */