uchar ie_mask; // Mask in IE register
uchar src_reg; // Register in SFR of source
uchar src_mask; // Mask of source bit in src_reg
uint addr; // Address of service routine
bool clr_bit; // Request bit must be cleared when IT accepted
uchar ie_mask; // Mask in IE register
uchar src_reg; // Register in SFR of source
uchar src_mask; // Mask of source bit in src_reg
uint addr; // Address of service routine
bool clr_bit; // Request bit must be cleared when IT accepted