Visible to Intel only — GUID: ubb1700109037230
Ixiasoft
Visible to Intel only — GUID: ubb1700109037230
Ixiasoft
7.3.1.7. CFG REG IA CTRL
The following table lists details of configuration register indirect access control register.
Default Value: 0x0000_0000
Register Name | Bit | Attribute User Side | Description |
---|---|---|---|
CFG REG IA CTRL | 0 | RW | Initiate Access This bit should be set when a master-like interface wants to read from or write to PCIe configuration space register.
The IP performs read or write operation to a function pointed to by IA_FN_NUM register when this bit is set and clears this bit indicating requested operation is complete.
Master cannot initiate new transaction if this bit is set. |
1 | RW | Access Type Indicates access type of operation. 0 - Read Operation 1 - Write Operation |
|
5-2 | RW | Byte Enables Indicates Byte Enables of Write Operations. 4'b0001: Write byte 0 4'b0010: Write byte 1 4'b0100: Write byte 2 4'b1000: Write byte 3 4'b1111: Write all bytes. Any Combinations of byte enables are valid, e.g., 1010, 1011 etc. |
|
15-6 | RW | Register Address DWORD Address of Register |
|
31-16 | RsvdZ | Reserved |