Datasheet

13.13.3 Status B
Name: STATUSB
Offset: 0x0002
Reset: 0x1X
Property: PAC Write-Protection
Bit 7 6 5 4 3 2 1 0
HPE DCCD1 DCCD0 DBGPRES PROT
Access
R R R R R
Reset 1 0 0 0 0
Bit 4 – HPE Hot-Plugging Enable
Writing a '0' to this bit has no effect.
Writing a '1' to this bit has no effect.
This bit is set when Hot-Plugging is enabled.
This bit is cleared when Hot-Plugging is disabled. This is the case when the SWCLK function is changed.
Only a power-reset or a external reset can set it again.
Bits 2, 3 – DCCDx Debug Communication Channel x Dirty [x=1..0]
Writing a '0' to this bit has no effect.
Writing a '1' to this bit has no effect.
This bit is set when DCCx is written.
This bit is cleared when DCCx is read.
Bit 1 – DBGPRES Debugger Present
Writing a '0' to this bit has no effect.
Writing a '1' to this bit has no effect.
This bit is set when a debugger probe is detected.
This bit is never cleared.
Bit 0 – PROT Protected
Writing a '0' to this bit has no effect.
Writing a '1' to this bit has no effect.
This bit is set at power-up when the device is protected.
This bit is never cleared.
SAM D21 Family
DSU - Device Service Unit
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 89