Visible to Intel only — GUID: zlf1522747446211
Ixiasoft
Visible to Intel only — GUID: zlf1522747446211
Ixiasoft
5.2.5.3.2. Control Registers Description
Feature | Bit | Description |
---|---|---|
Pin Output Delay | [31:13] | Reserved 14 |
[12:0] | Phase value Strobe minimum setting: Refer to the Output and Strobe Enable Minimum and Maximum Phase Settings topic. Strobe maximum setting: Refer to the Output and Strobe Enable Minimum and Maximum Phase Settings topic. Incremental Delay: 1/128th VCO clock period The CSR value for DQS is set through the Output Strobe Phase parameter during IP instantiation.
Note: The pin output delay switches from the CSR register value to the Avalon register value after the first Avalon write. It is only reset to the CSR register value on a reset of the interface.
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Pin Input Delay | [31:13] | Reserved 14 |
[12] | Enable bit to select access to Avalon register or CSR register. 0 = Delay value is 0. CSR register is not available for this feature. 1 = Select delay value from Avalon register |
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[11:9] | Reserved 14 | |
[8:0] | Delay value Minimum Setting: 0 Maximum Setting: 511 VCO clock periods Incremental Delay: 1/256th VCO clock period |
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Strobe Input Delay | [31:13] | Reserved 14 |
[12] | Enable bit to select access to Avalon register or CSR register. 0 = Delay value is 0. CSR register is not available for this feature. 1 = Select delay value from Avalon register Modifying these values must be done on all lanes in a group. |
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[11:10] | Reserved14 | |
[9:0] | Delay value Minimum Setting: 0 Maximum Setting: 1023 VCO clock periods Incremental Delay: 1/256th VCO clock period Modifying these values must be done on all lanes in a group. |
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Strobe Enable Phase | [31:16] | Reserved 14 |
[15] | Enable bit to select access to Avalon register or CSR register. 0 = Select delay value from CSR register. The CSR value is set through the Capture Strobe Phase Shift parameter during IP instantiation. 1 = Select delay value from Avalon register Modifying these values must be done on all lanes in a group. |
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[14:13] | Reserved14 | |
[12:0] | Bit [12:0]: Phase value Minimum Setting: Refer to the Output and Strobe Enable Minimum and Maximum Phase Settings topic. Maximum Setting: Refer to the Output and Strobe Enable Minimum and Maximum Phase Settings topic. Incremental Delay: 1/128th VCO clock period Modifying these values must be done on all lanes in a group. |
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Strobe Enable Delay | [31:16] | Reserved14 |
[15] | Enable bit to select access to Avalon register or CSR register. 0 = Select delay value from CSR register 1 = Select delay value from Avalon register Modifying these values must be done on all lanes in a group. |
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[14:6] | Reserved14 | |
[5:0] | Delay value Minimum Setting: 0 external clock cycles Maximum Setting: 63 external memory clock cycles Incremental Delay: 1 external memory clock cycle Modifying these values must be done on all lanes in a group. |
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Read Valid Delay | [31:16] | Reserved14 |
[15] | Enable bit to select access to Avalon register or CSR register. 0 = Select delay value from CSR register 1 = Select delay value from Avalon register Modifying these values must be done on all lanes in a group. |
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[14:7] | Reserved | |
[6:0] | Delay value Minimum Setting: 0 external clock cycles Maximum Setting: 127 external memory clock cycles Incremental Delay: 1 external memory clock cycle Modifying these values must be done on all lanes in a group. |