RxENAB
up->curregs[R3] = RxENAB | Rx8;
write_zsreg(channel, R3, regs[R3] & ~RxENAB);
up->curregs[R3] |= RxENAB;
up->curregs[R3] &= ~RxENAB;
up->curregs[R3] = RxENAB | Rx8;
up->curregs[R3] = RxENAB | Rx8;
write_zsreg(channel, R3, regs[R3] & ~RxENAB);
up->curregs[R3] |= RxENAB;
up->curregs[R3] &= ~RxENAB;