MR_PAR
CLR(val, MR_CHMODE | MR_NBSTOP | MR_PAR | MR_CHRL | MR_CLKS);
#define PAR_EVEN __SHIFTIN(0, MR_PAR)
#define PAR_ODD __SHIFTIN(1, MR_PAR)
#define PAR_ZERO __SHIFTIN(2, MR_PAR)
#define PAR_ONE __SHIFTIN(3, MR_PAR)
#define PAR_NONE __SHIFTIN(4, MR_PAR)