Visible to Intel only — GUID: xxb1481130012294
Ixiasoft
Visible to Intel only — GUID: xxb1481130012294
Ixiasoft
16.4.2.2. Register Block
All registers reside in the BIU clock domain, l4_mp_clk. When a command is sent to a card by setting the start command bit (start_cmd) of the command register (cmd) to 1, all relevant registers needed for the CIU operation are copied to the CIU block. During this time, software must not write to the registers that are transferred from the BIU to the CIU. The software must wait for the hardware to reset the start_cmd bit to 0 before writing to these registers again. The register unit has a hardware locking feature to prevent illegal writes to registers.