The GT Selection and Configuration tab enables you to configure the serial transceiver features of the core.
Figure 1. MAC Options Tab

| Option | Values | Default |
|---|---|---|
| Flow Control | ||
| Enable Flow Control Logic | Checked, Unchecked | Unchecked |
| IEEE PTP 1588v2 | ||
|
Enable Timestamping Logic |
Checked, Unchecked | Unchecked |
| Operation Mode | Two Step | Two Step |