21. A nanosecond is equal to 1000 picoseconds or microsecond . 22. The interface delay is a configurable static parameter expressed in tens of microseconds . 23. The addition time was 96 microseconds and the multiplication time was 352 microseconds. 24. The addition time was 96 microseconds and the multiplication time was 352 microseconds . 25. The addition time was 62 microseconds and the multiplication time was 713 microseconds. 26. The addition time was 62 microseconds and the multiplication time was 713 microseconds . 27. Its addition time was 72 microseconds and the multiplication time was 732 microseconds. 28. Its addition time was 72 microseconds and the multiplication time was 732 microseconds . 29. These times include the storage access time, which was about 62 microseconds . 30. To control the reaction, calculations down to the microsecond level were needed.