| Acronym | Brief Description | 
|---|---|
| * | User Assigned | 
| (b) | Buried macrocell | 
| FB# | Function Block number | 
| GCK# | Global Clock number | 
| GTS# | Global Output Enable number | 
| GSR | Global Set/Reset | 
| I | Input | 
| I/O | Input/Output | 
| Latch | Transparent latch | 
| LOW | Low Power Mode | 
| MC# | Macrocell number | 
| O | Output | 
| OD | Open Drain | 
| PU | Pullup | 
| /S | After any flop/latch type indicates initial state is Set | 
| STD | Standard Power Mode | 
| TCK | Test clock | 
| TDI | Test data input | 
| TDO | Test data output | 
| TFF | Toggle Flip-Flop | 
| TMS | Test mode select |