Visible to Intel only — GUID: uld1606745570749
Ixiasoft
Visible to Intel only — GUID: uld1606745570749
Ixiasoft
4.2.4.2.2. Control Registers
When you generate a read operation to the control registers addresses, the Avalon® interface returns a set of values from the control registers.
Feature | Bit | Description |
---|---|---|
Pin Output Delay | [31:13] | Reserved. |
[12:0] | Phase value.
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. The delay is only reset to the CSR register value on a reset of the interface.
|
|
Pin Input Delay | [31:13] | Reserved. |
[12] | Enable bit to select access to Avalon® register or CSR register.
|
|
[11:9] | Reserved. | |
[8:0] | Delay value.
|
|
Strobe Input Delay | [31:13] | Reserved. |
[12] | Enable bit to select access to Avalon® register or CSR register.
Modifying these values must be done on all lanes in a group. |
|
[11:10] | Reserved. | |
[9:0] |
Modifying these values must be done on all lanes in a group. |
|
Strobe Enable Phase | [31:13] | Reserved. |
[12] | Enable bit to select access to Avalon® register or CSR register.
Modifying these values must be done on all lanes in a group. |
|
[11:10] | Reserved. | |
[9:0] |
Modifying these values must be done on all lanes in a group. |
|
Strobe Enable Delay | [31:16] | Reserved. |
[15] | Enable bit to select access to Avalon® register or CSR register.
Modifying these values must be done on all lanes in a group. |
|
[14:6] | Reserved. | |
[5:0] | Delay value.
Modifying these values must be done on all lanes in a group. |
|
Read Valid Delay | [31:16] | Reserved |
[15] | Enable bit to select access to Avalon® register or CSR register.
Modifying these values must be done on all lanes in a group. |
|
[14:7] | Reserved. | |
[6:0] | Delay value.
Modifying these values must be done on all lanes in a group. |
Example Structure of Address Map (addr_map.vh)
This example shows the address value, mask value, delay field offset, and delay field width of an address map (addr_map.vh file). The address value is generated based on information in the Control Register Addresses Description table. The mask value is to be masked with the 32-bit data register pin output delay in the Control Data Register Bit Description table. The delay width of value 13 corresponds to bit 12 to bit 0 for pin output delay in the Control Data Register Bit Description table.