| Field Name | Bits | Type | Reset Value | Description |
|---|---|---|---|---|
| reserved | 31:5 | rw | 0x0 | Reserved. Writes are ignored, read data is zero. |
| reserved | 4 | rw | 0x0 | Reserved. Do not modify. |
| USER_LVL_SHFTR_EN | 3:0 | rw | 0x0 |
Level shifter enable to drive signals between PS and PL. 0x0 = disable all level shifters 0xA = enable PS-to-PL level shifters 0xF = enable all level shifters All other = reserved |