CSCLR=0, CSSTS=0, INBUFM=0, ATREPM=0, SQSET=0, SQCLR=0, SQMON=0, PBUSY=0, ACLRM=0, PID=00, BSTS=0
PIPE Control Register
| PID | Response PIDThese bits specify the response type for the next transaction of the relevant pipe. 0 (00): NAK response 1 (01): BUF response (depending on buffer state) 2 (10): STALL response 3 (11): STALL response |
| PBUSY | Pipe BusyThis bit indicates whether the relevant pipe is being used for the USB bus 0 (0): The relevant pipe is not used for the USB bus. 1 (1): The relevant pipe is in use for the USB bus. |
| SQMON | Toggle Bit ConfirmationThis bit indicates the expected value of the sequence toggle bit for the next transaction of the relevant pipe 0 (0): DATA0 1 (1): DATA1 |
| SQSET | Toggle Bit SetThis bit is set to 1 when the expected value of the sequence toggle bit for the next transaction of the relevant pipe is set for DATA1 0 (0): Writing is ignored. 1 (1): Specifies DATA1. |
| SQCLR | Toggle Bit ClearThis bit is set to 1 when the expected value of the sequence toggle bit for the next transaction of the relevant pipe is cleared to DATA0 0 (0): Writing is ignored. 1 (1): Specifies DATA0. |
| ACLRM | Auto Buffer Clear ModeThis bit enables or disables auto buffer clear mode for the relevant pipe 0 (0): Disabled 1 (1): Enabled (all buffers are initialized) |
| ATREPM | Auto Response ModeThis bit enables or disables auto response mode for the relevant pipe. 0 (0): Auto response mode is disabled. 1 (1): Auto response mode is enabled (Transmission: zero-length packet response, Reception: NAK response and NRDY interrupt) |
| CSSTS | CSSTS StatusThis bit indicates the CSPLIT status of Split Transaction of the relevant pipe 0 (0): SSplit Transaction processing is in progress or transfer without Split Transaction is in progress. 1 (1): CSplit Transaction processing is in progress. |
| CSCLR | CSPLIT Status ClearSet this bit to 1 when clearing the CSSTS bit of the relevant pipe 0 (0): Writing is disabled. 1 (1): The CSSTS bit is cleared. |
| INBUFM | Transmit Buffer MonitorThis bit indicates the FIFO buffer status for the relevant pipe in the transmitting direction. 0 (0): No transmittable data is present in the FIFO buffer. 1 (1): Transmittable data is present in the FIFO buffer. |
| BSTS | Buffer StatusThis bit indicates the FIFO buffer status for the relevant pipe. 0 (0): Buffer access is disabled. 1 (1): Buffer access is enabled. |