| Field Name | Bits | Type | Reset Value | Description |
|---|
| ssss_pmu_sec | 8:6 | rwNormal read/write | 0x0 | Setting these bits disables the security gate for the PMU MDM and allows the PS TAP to connect to the PMU. All bits must be set to 1 for the security gate to be released. (POR reset only) |
| ssss_pltap_sec | 5:3 | rwNormal read/write | 0x0 | Setting these bits disables the security gate for the PLTAP and allows the PSTAP to connect to the PL for bitstream loading and boundary scan operations. All bits must be set to 1 to release the security gate. (POR reset only) |
| ssss_dap_sec | 2:0 | rwNormal read/write | 0x0 | Setting these bits disables the security gate for the Arm DAP and allows the PS TAP or PJTAG to connect to the DAP. All bits must be set to 1 for the security gate to be released. (POR reset only) |