Datasheet

Digital comparator L6460
94/139 Doc ID 17713 Rev 1
Figure 29. Digital comparator block diagram
In Ta ble 37 is reported the comparison type truth table.
In Ta ble 38 is reported the Data0/Data1 selection truth table.
Table 37. Comparison type truth table
EnDigCmp SelCmpType[1] SelCmpType[0] Comparison type
0 X X Disabled
1 0 0 Data0[9:0] ≤1³1÷Data1[9:0]
1 0 1 Data0[9:0] = Data1[9:0]
1 1 0 Data0[9:0] > Data1[9:0]
1 1 1 Data0[9:0] ≤= Data1[9:0]
Table 38. DataX selection truth table
DigCmpSelChX[1] DigCmpSelChX[0] DataX[9:0]
0 X DigCmpValue[9:0]
1 0 A2DResult1[8:0]
1 1 A2DResult1[8:0]
COMPARATOR
A2DResult0[8:0]
A2DResult1[8:0]
DigCmpUpdate[1:0]
SelCmpType[1:0]
A2DDone0 A2DDone1
ADC FSM
Update
Signal
Logic ‘1’
CmpOut
DigCmpSelCh1[0]
DigCmpSelCh1[1]
Data0[9:0]
Data1 [9:0]
EnDigCmp
DigCmpSelCh0[0]
DigCmpValue[9:0]
DigCmpSelCh0[1]
Three checks
filter