S. ) Bi t dat a area O u tp u t b i t d ata Bi t dat a area In p u t b i t d ata R Y00 to R Y0B Set val ue of hol di ng pressure f or error N ot e R X00 to R X0F U nused R X10 to R X19 I nval i d ( area of syst em ) RY0C, RY0D U nused RX1A Fl ag f or error RY0E Banned f or use RX1B Rem ot e READ Y R X1C to R X1F I nval i d ( area of syst em ) RY0F 0: RY00 t o RY0B i nval i d dat a 1: RY00