MUSB_TXCSR_H_NAKTIMEOUT
} else if (tx_csr & MUSB_TXCSR_H_NAKTIMEOUT) {
| MUSB_TXCSR_H_NAKTIMEOUT
| MUSB_TXCSR_H_NAKTIMEOUT
csr &= ~(MUSB_TXCSR_H_NAKTIMEOUT
tx_csr &= ~MUSB_TXCSR_H_NAKTIMEOUT;
(MUSB_TXCSR_H_NAKTIMEOUT | MUSB_TXCSR_H_RXSTALL \