28.7.3 Debug Control

Table 28-5. Register Bit Attribute Legend
Symbol Description Symbol Description Symbol Description
R Readable bit HC Cleared by Hardware (Grey cell) Unimplemented
W Writable bit HS Set by Hardware X Bit is unknown at Reset
K Write to clear S Software settable bit
Name: DBGCTRL
Offset: 0x0004
Reset: 0x00
Property: PAC Write-Protection

Bit 76543210 
        LCKUPDIS 
Access R/W 
Reset 0 

Bit 0 – LCKUPDIS Lockup Disable

If set the CPU LOCKUP Reset source is disabled in debug mode.

(The Lockup Reset is a Reset generated by the CPU when it enters a lockup state (for details refer to the ARM® Cortex™ Technical Reference Manual on www.arm.com)).