16.13.9 Status B

Table 16-17. 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:	STATUSB
Offset:	0x0104
Reset:	0x00000000
Property:	PAC Write-Protection


Bit	31	30	29	28	27	26	25	24

Access
Reset


Bit	23	22	21	20	19	18	17	16

Access
Reset


Bit	15	14	13	12	11	10	9	8
						HPE		DBGPRES
Access						R		R
Reset						0		x


Bit	7	6	5	4	3	2	1	0
					DCCD1	DCCD0	BCCD1	BCCD0
Access					R	R	R	R
Reset					0	0	x	x

Bit 10 – HPE Hot-Plugging Enable

This bit is set when Hot-Plugging is enabled.

This bit is cleared when Hot-Plugging is disabled. This is the case when the TCK/SWCLK function is changed. Only a power-reset or an external reset can set it again.

Bit 8 – DBGPRES Debugger Present

This bit is set when a debugger probe is detected.

Only a POR or external reset can reset this bit.

Bits 2, 3 – DCCDx Debug Communication Channel x Dirty [x=1..0]

This bit is set when DCCx register is written.

This bit is cleared when DCCx register is read.

Reset by APB reset.

Bits 0, 1 – BCCDx BOOT Communication Channel x Dirty [x=1..0]

This bit is set when BCCx register is written.

This bit is cleared when BCCx register is read.

Reset by APB reset and modified by the Boot ROM at boot time.