| Delay | Delay input signal by fixed or variable sample periods (HDL Coder) |
| Discrete FIR Filter | Model FIR filters (HDL Coder) |
| Discrete PID Controller | Simulate discrete-time PID controllers (HDL Coder) |
| Discrete Transfer Fcn | Implement discrete transfer function (HDL Coder) |
| Discrete-Time Integrator | Perform discrete-time integration or accumulation of signal (HDL Coder) |
| Memory | Output input from previous time step (HDL Coder) |
| Tapped Delay | Delay scalar signal multiple sample periods and output the delayed versions (HDL Coder) |
| Unit Delay | Delay signal one sample period (HDL Coder) |
| Zero-Order Hold | Implement zero-order hold of one sample period (HDL Coder) |