XACTPOS=B_0x0
OTG host channel 0 split control register
| PRTADDR | Port address |
| HUBADDR | Hub address |
| XACTPOS | Transaction position 0 (B_0x0): Mid. This is the middle payload of this transaction (which is larger than 188 bytes) 1 (B_0x1): End. This is the last payload of this transaction (which is larger than 188 bytes) 2 (B_0x2): Begin. This is the first data payload of this transaction (which is larger than 188 bytes) 3 (B_0x3): All. This is the entire data payload of this transaction (which is less than or equal to 188 bytes) |
| COMPLSPLT | Do complete split |
| SPLITEN | Split enable |