SCR2_RTCLK
*scr2 = (*scr2 & ~(SCR2_RTDATA | SCR2_RTCLK)) | SCR2_RTCE;
tmp = *scr2 & ~(SCR2_RTDATA | SCR2_RTCLK);
*scr2 = tmp | SCR2_RTCLK;
tmp = *scr2 & ~(SCR2_RTDATA | SCR2_RTCLK);
*scr2 = tmp | SCR2_RTCLK;
*scr2 &= ~(SCR2_RTDATA | SCR2_RTCLK | SCR2_RTCE);
*scr2 = (*scr2 & ~(SCR2_RTDATA | SCR2_RTCLK)) | SCR2_RTCE;
tmp = *scr2 & ~(SCR2_RTDATA | SCR2_RTCLK);
*scr2 = tmp | SCR2_RTCLK;
tmp = *scr2 & ~(SCR2_RTDATA | SCR2_RTCLK);
*scr2 = tmp | SCR2_RTCLK;
*scr2 &= ~(SCR2_RTDATA | SCR2_RTCLK | SCR2_RTCE);
*scr2 = (*scr2 & ~(SCR2_RTDATA | SCR2_RTCLK)) | SCR2_RTCE;
tmp = *scr2 & ~(SCR2_RTDATA | SCR2_RTCLK);
*scr2 = tmp | SCR2_RTCLK;
tmp = *scr2 & ~(SCR2_RTDATA | SCR2_RTCLK);
*scr2 = tmp | SCR2_RTCLK;
*scr2 &= ~(SCR2_RTDATA|SCR2_RTCLK|SCR2_RTCE);