Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
| SLD_AUTO_INSTANCE_INDEX | String | Yes | Specifies whether the instance index is automatically assigned by the compiler. Values are "YES" and "NO". If you specify a value of "YES", you must define the SLD_INSTANCE_INDEX parameter. If the specified index is not unique in a design, the index is automatically reassigned by the compiler. If omitted, the default value is "YES". |
| ENABLE_METASTABILITY | String | No | Specifies whether metastability protection is enabled for the source port. If enabled, two registers are added to the source output path clocked in the source target clock domain, as shown in the following example: metastability_gen: if (ENABLE_METASTABILITY = "YES" ) generate -- purpose: register for metastability. With an enable signal -- type: sequential -- inputs : source_clk, reset -- outputs: metastable_enable_reg: process (source_clk, reset, metastable_l2_reg) begin-- process metastable_enable_reg if source_clk'event and source_clk = '1' then -- rising clock edge metastable_l1_reg <= hold_reg; if (source_ena = '1') then metastable_l2_reg <= metastable_l1_reg; end if; end if; hold_m_out <= metastable_l2_reg; end process metastable_enable_reg; end generate metastability_gen; no_metastability_gen: if (ENABLE_METASTABILITY = "NO") generate hold_m_out <= hold_reg; end generate no_metastability_gen; |
| INSTANCE_ID | String | No | Specifies an optional 4-character name for the instance. Use this parameter to assign optional instances in addition to the instance index for instance identification in the project at runtime. Additional device logic resource is required to store this information. If omitted, the default is "UNUSED". |
| PROBE_WIDTH | Integer | Yes | Specifies the probe port width. Values are [0..511]. If omitted, the default is 1. |
| SLD_INSTANCE_INDEX | Integer | No | Specifies a unique altsource_probe Intel® FPGA IP identifier. The SLD_INSTANCE_INDEX parameter is used only when the SLD_AUTO_INSTANCE_INDEX parameter value is "NO". If omitted, the value is auto-assigned by the Compiler. |
| SOURCE_INITIAL_VALUE | String | No | Specifies the initial source port value in hexadecimal after the device is configured. If omitted, the default is 0. |
| SOURCE_WIDTH | Integer | No | Specifies the source port width. Values are [0..511]. If omitted, the default is 1. |