1 bit 0 - terminal count status bit (tmrx.tc), 2 bit 1 - timer enable (tmrx.enable), 3 bit 2 - timer auto reload enable (tmrx.reload) – Intel CONTROLLERS 413808 User Manual
Page 635: 1 bit 0 — terminal count status bit (tmrx.tc), 2 bit 1 — timer enable (tmrx.enable), 3 bit 2 — timer auto reload enable (tmrx.reload)
