INTSTS2
intsts2 = r8a66597_read(r8a66597, INTSTS2);
r8a66597_write(r8a66597, ~ATTCH, INTSTS2);
r8a66597_write(r8a66597, ~DTCH, INTSTS2);
r8a66597_write(r8a66597, ~BCHG, INTSTS2);
return port == 0 ? INTSTS1 : INTSTS2;