Libraries GuideChapter 7: Design Elements (LD to NOR16)
M2_1E
2-to-1 Multiplexer with Enable
XC3000
| XC4000E
| XC4000X
| XC5200
| XC9000
| Spartan
| SpartanXL
| Spartan2
| Virtex
|
|---|
Macro
| Macro
| Macro
| Macro
| Macro
| Macro
| Macro
| Macro
| Macro
|
M2_1E is a 2-to-1 multiplexer with enable. When the enable input (E) is High, the M2_1E chooses one data bit from two sources (D1 or D0) under the control of select input (S0). When E is High, the output (O) reflects the state of the selected input. When Low, S0 selects D0 and when High, S0 selects D1. When E is Low, the output is Low.
Inputs
| Outputs
|
|---|
E
| S0
| D1
| D0
| O
|
|---|
0
| X
| X
| X
| 0
|
1
| 0
| X
| 1
| 1
|
1
| 0
| X
| 0
| 0
|
1
| 1
| 1
| X
| 1
|
1
| 1
| 0
| X
| 0
|
Figure 7.19 M2_1E Implementation XC3000, XC4000E, XC4000X, XC5200, XC9000, Spartan, SpartanXL, Spartan2, Virtex