2.3.1.4 Options
Options enables you to configure the following:
- PHY Reference Clock Slot—Sets your reference clock to slot or independent.
 - L2/P2—Click the check box to add
                    PCIE_WAKE_N, PCIE_WAKE_REQ, and PCIE_PERST_N ports.Note: SERDES_IF block does not support PCIE_PERST_N port.
 - PCIe Specification Version—Sets the specification version to 1.0, 1.1 or 2.0.
 - Interrupt—Sets the interrupt to:
- MSI 1
 - MSI 2
 - MSI 4
 - MSI 8
 - MSI 16
 - MSI 32
 - INTx
 
 
Your Interrupt selection sets bit 16 of the PCIE_MSI_CTRL_STATUS register and bits [19:17] of the PCIE_MSI_CTRL_STATUS register as listed in the following table.
| Interrupt Selected | Setting for Bit 16 of PCIE_MSI_CTRL_STATUS Register | Setting for Bits [19:17] of PCIE_MSI_CTRL_STATUS Register | 
|---|---|---|
| MSI 1 | 1 | 000 | 
| MSI 2 | 1 | 001 | 
| MSI 4 | 1 | 010 | 
| MSI 8 | 1 | 011 | 
| MSI 16 | 1 | 100 | 
| MSI 32 | 1 | 101 | 
| INTx | 0 (Disable MSI) | 000 | 
