FS_2=FS_2_0, ASE=ASE_0, PSE=PSE_0, ITC=ITC_0
USB Command Register
| RS | Run/Stop (RS) - Read/Write |
| RST | Controller Reset (RESET) - Read/Write |
| FS_1 | See description at bit 15 |
| PSE | Periodic Schedule Enable- Read/Write 0 (PSE_0): Do not process the Periodic Schedule 1 (PSE_1): Use the PERIODICLISTBASE register to access the Periodic Schedule. |
| ASE | Asynchronous Schedule Enable - Read/Write 0 (ASE_0): Do not process the Asynchronous Schedule. 1 (ASE_1): Use the ASYNCLISTADDR register to access the Asynchronous Schedule. |
| IAA | Interrupt on Async Advance Doorbell - Read/Write |
| ASP | Asynchronous Schedule Park Mode Count - Read/Write |
| ASPE | Asynchronous Schedule Park Mode Enable - Read/Write |
| SUTW | Setup TripWire - Read/Write |
| ATDTW | Add dTD TripWire - Read/Write |
| FS_2 | Frame List Size - (Read/Write or Read Only) 0 (FS_2_0): 1024 elements (4096 bytes) Default value 1 (FS_2_1): 512 elements (2048 bytes) |
| ITC | Interrupt Threshold Control -Read/Write 0 (ITC_0): Immediate (no threshold) 1 (ITC_1): 1 micro-frame 2 (ITC_2): 2 micro-frames 4 (ITC_4): 4 micro-frames 8 (ITC_8): 8 micro-frames 16 (ITC_16): 16 micro-frames 32 (ITC_32): 32 micro-frames 64 (ITC_64): 64 micro-frames |