Fetches the 32-bit USERCODE/Silicon signature.
System Service Descriptor Bit Field | Value | Description |
---|---|---|
15:7 | MBOXADDR[10:2] | Mailbox address. See Table 2. |
6:0 | 01H | USERCODE service command |
The following table lists the USERCODE Service mailbox format.
Offset | Length (bytes) | Parameter | Direction | Description |
---|---|---|---|---|
0 | 4 | USERCODE | Output | Device USERCODE |