Table 3.3 Command parameter setting example for acquiring peripheral data only

IREG	setting value	contents
IREG0	00H	Date, cartridge code, area code, terminal status, SMEM, Reset Do not return button mode data
IREG1	Application specifications (excluding PEN bit )	Port 2 mode (P2MD1, P2MD0) = According to application specifications Port 1 mode (P1MD1, P1MD0) = According to application specifications Peripheral data enable (PEN) = 1B Return peripheral data Acquisition time Optimization (OPE) = Depends on application specifications
IREG2	F0H	Unconditionally set to F0H