(3) 0/1 of the above table represent the validity of the signal. The 0-bit terminal input is invalid. 1
is the terminal input valid.
2. Terminal effectiveness description
The following table takes /SPD-D as an example, /SPD-A, /SPD-B signals are the same.
Signal/SPD-D terminal input status
Signal/SPD-D terminal
logic
No need external terminal input
SI□ terminal no signal input
SI□ terminal has signal input
No need external terminal input
SI□ terminal has signal input
SI□ terminal no signal input
3. Running example
Speed up down is decided by