 
   // now for the low byte
   digitalWrite(_BYTE, HIGH);
-  // Since we are running at 16MHz, each cycle is 62.5 ns. t12, bus access and
-  // BYTE delay is no more than 83 ns from datasheet, so 2 nops will cover it.
   __builtin_avr_delay_cycles(2);
-
   uint8_t lbyte = PINC;
-
 
   return (hbyte<<8 | lbyte);
 }

  // wait for busy to go high
  wait_busy();

  // elect the high byte for reading
  digitalWrite(_BYTE, LOW);

  // use port manipulation to read the data pins. Note that our pinmapping
  // is such that port C maps exactly onto the parallel output from the

  
  // begin a conversion
  digitalWrite(_RC, LOW);

  // t1, Convert Pulse Width, must be no less than 0.04 us and no more than
  // 12 us. In other words, no less than 40ns, and since one cycle at 16 MHz
  // is 62.5 ns, we can just delay for a single cycle
  __builtin_avr_delay_cycles(1);

  digitalWrite(_RC, HIGH);

  interrupts();
