CRT_THROD_HIGH
.throd_val = CRT_THROD_LOW(0x1e) | CRT_THROD_HIGH(0x12),
.throd_val = CRT_THROD_LOW(0x24) | CRT_THROD_HIGH(0x3c),
.throd_val = CRT_THROD_LOW(0x50) | CRT_THROD_HIGH(0x70),