SUREQ=0, SQSET=0, SQMON=0, BSTS=0, SQCLR=0, PBUSY=0, PID=00, SUREQCLR=0, CCPL=0
DCP Control Register
| PID | Response PID 0 (00): NAK response 1 (01): BUF response (depends on the buffer state) 2 (10): STALL response 3 (11): STALL response |
| CCPL | Control Transfer End Enable 0 (0): Disable control transfer completion 1 (1): Enable control transfer completion |
| PBUSY | Pipe Busy 0 (0): DCP not used for the USB bus 1 (1): DCP in use for the USB bus |
| SQMON | Sequence Toggle Bit Monitor 0 (0): DATA0 1 (1): ATA1 |
| SQSET | Sequence Toggle Bit Set 0 (0): Invalid (writing 0 has no effect) 1 (1): Set the expected value for the next transaction to DATA1 |
| SQCLR | Sequence Toggle Bit Clear 0 (0): Invalid (writing 0 has no effect) 1 (1): Clear the expected value for the next transaction to DATA0 |
| SUREQCLR | SUREQ Bit Clear 0 (0): Invalid (writing 0 has no effect) 1 (1): Clear SUREQ to 0 |
| SUREQ | Setup Token Transmission 0 (0): Invalid (writing 0 has no effect) 1 (1): Transmit setup packet |
| BSTS | Buffer Status 0 (0): Buffer access disabled 1 (1): Buffer access enabled |