Unlock Debug Passcode Service

Attempts to match the user debug pass code using the key loaded into the mailbox. If the match is successful, the software debug lock SWL_DEBUG is temporarily inactive.

Table 1. Unlock Debug Passcode Service Request
System Service Descriptor Bit Field Value Description
15:7 MBOXADDR[10:2] Mailbox address. See Table 2.
6:0 7CH Unlock Debug Passcode service command

The following table lists the Unlock Debug Passcode service mailbox format.

Table 2. Unlock Debug Passcode Service Mailbox Format
Offset Length (bytes) Parameter Direction Description
0 32 DEBUG PASSCODE Input

Output

 Input: Value of debug passcode

Output: This is set to 0 during system service execution.
Parent topic: Passcode Services (For PolarFire SoC FPGA Only)