10.1.10.3 Linear Binary Counters - IGLOO®, ProASIC® 3, SmartFusion® and Fusion Parameter Description
The following table describes all the parameters of a Linear Binary Counter.
| Parameter | Value | Function |
|---|---|---|
| WIDTH | 2-45 | Word length of Data and Q |
| DIRECTION | UP DOWN UPDOWN | Counter direction UPDOWN is not supported for Register Look Ahead counters |
| CLR_POLARITY | 0 1 2 | Aclr can be active low, active high or not used |
| EN_POLARITY | 0 1 2 | Enable can be active low, or active high or not used |
| LD_POLARITY | 0 1 2 | Sload can be active low, active high or not used |
| CLK_EDGE | RISE FALL | Sets rising or falling clock edge |
| TCNT_POLARITY | 0 1 2 | Tcnt can be active low, active high or not used Tcnt is not supported for Up/Down counters |
| SET_POLARITY | 0 1 2 | SET_POLARITY can be active low, active high or not used |
The following table describes all the parameters for Fan-in Control of a Linear Binary Counter.
| Parameter | Value |
|---|---|
| CLR_FANIN CLR_VAL | AUTO MANUAL [default value for MANUAL is 1] |
| SET_FANIN SET_VAL | AUTOMANUAL [default value for MANUAL is 1] |
| CLK_FANIN CLK_VAL | AUTOMANUAL [default value for MANUAL is 1] |
| LD_FANIN LD_VAL | AUTOMANUAL [default value for AUTO is 12] |
| UPDOWN_FANIN UPDOWN_VAL | AUTOMANUAL [default value for AUTO is 12] |