23.6.5 Recoverable Fault Control x


Bit	31	30	29	28	27	26	25	24
					FILTERVAL[3:0]
Access					R/W	R/W	R/W	R/W
Reset					0	0	0	0


Bit	23	22	21	20	19	18	17	16
	BLANKVAL[7:0]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	0	0	0	0	0	0	0	0


Bit	15	14	13	12	11	10	9	8
	BLANKPRESC	CAPTURE[2:0]			CHSEL[1:0]		HALT[1:0]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	0	0	0	0	0	0	0	0


Bit	7	6	5	4	3	2	1	0
	RESTART	BLANK[1:0]		QUAL	KEEP		SRC[1:0]
Access	R/W	R/W	R/W	R/W	R/W		R/W	R/W
Reset	0	0	0	0	0		0	0

Bits 27:24 – FILTERVAL[3:0] Recoverable Fault Filter Value

This bit field defines the filter value applied to the MCEn (n = 0,1) event input line. The value must be set to zero when the MCEn event is used as a synchronous event.

Bits 23:16 – BLANKVAL[7:0] Recoverable Fault Blanking Value

This bit field determines the duration of the blanking of the fault input source. Activation and edge selection of the blank filtering are controlled by the BLANK bits (FCTRLn.BLANK).

When enabled, the fault input source is internally disabled for BLANKVAL * prescaled GCLK_TCC periods after the detection of the waveform edge.

Bit 15 – BLANKPRESC Recoverable Fault Blanking Value Prescaler

This bit enables a prescaler that multiplies the Blanking Value (BLANKVAL) by a factor of 64.

Value	Description
0	Blank time is `BLANKVAL * prescaled GCLK_TCCn`.
1	Blank time is `BLANKVAL * 64 * prescaled GCLK_TCCn`.

Bits 14:12 – CAPTURE[2:0] Recoverable Fault Capture Action

This bit field selects the capture and Fault n interrupt/event conditions.

Value	Name	Description
0x0	DISABLE	Capture on valid recoverable Fault is disabled
0x1	CAPT	On the rising edge of a valid recoverable fault, the counter value is captured on the channel selected by CHSEL[1:0] The INTFLAG.FAULTn flag is set on each new captured value.
0x2	CAPTMIN	On the rising edge of a valid recoverable fault, the counter value is captured on the channel selected by CHSEL[1:0] if the COUNT value is lower than the last stored capture value (CC). The INTFLAG.FAULTn flag is set on each local minimum detection.
0x3	CAPTMAX	On the rising edge of a valid recoverable fault, the counter value is captured on the channel selected by CHSEL[1:0] if the COUNT value is higher than the last stored capture value (CC). The INTFLAG.FAULTn flag is set on each local maximun detection.
0x4	LOCMIN	On the rising edge of a valid recoverable fault, the counter value is captured on the channel selected by CHSEL[1:0]. The INTFLAG.FAULTn flag is set on each local minimum value detection.
0x5	LOCMAX	On the rising edge of a valid recoverable fault, the counter value is captured on the channel selected by CHSEL[1:0]. The INTFLAG.FAULTn flag is set on each local maximun detection.
0x6	DERIV0	On the rising edge of a valid recoverable fault, the counter value is captured on the channel selected by CHSEL[1:0]. The INTFLAG.FAULTn flag is set on each local maximun or minimum detection.
0x7	CAPTMARK	Capture with the ramp index as the MSB value

Bits 11:10 – CHSEL[1:0] Recoverable Fault Capture Channel

This bit field selects the channel for the capture operation triggered by a recoverable fault.

Value	Name	Description
0x0	CC0	The captured value stored in CC0
0x1	CC1	The captured value stored in CC1
0x2	CC2	The captured value stored in CC2
0x3	CC3	The captured value stored in CC3

Bits 9:8 – HALT[1:0] Recoverable Fault Halt Operation

This bit field selects the halt action for a recoverable fault.

Value	Name	Description
0x0	DISABLE	Halt action disabled
0x1	HW	Hardware halt action
0x2	SW	Software halt action
0x3	NR	Non-recoverable fault

Bit 7 – RESTART Recoverable Fault Restart

Setting this bit enables restart action for Fault.

Value	Description
0	The restart action for fault n is disabled
1	The restart action for fault n is enabled

Bits 6:5 – BLANK[1:0] Recoverable Fault Blanking Operation

This bit field selects the blanking start point for a recoverable fault.

Value	Name	Description
0x0	START	Blanking is applied from the start of the ramp period
0x1	RISE	Blanking is applied from the rising edge of the waveform output
0x2	FALL	Blanking is applied from the falling edge of the waveform output
0x3	BOTH	Blanking is applied from each toggle of the waveform output

Bit 4 – QUAL Recoverable Fault Qualification

Setting this bit enables the recoverable Fault input qualification.

Value	Description
0	The recoverable Fault n input is not disabled by the CMPn value condition
1	The recoverable Fault n input is disabled when the output signal is at the inactive level (CMPn = 0)

Bit 3 – KEEP Recoverable Fault Keep

Setting this bit enables the fault keep action.

Value	Description
0	The fault state is released as soon as the recoverable Fault n is cleared
1	The fault state is released at the end of the TCC cycle

Bits 1:0 – SRC[1:0] Recoverable Fault Source

This bit field selects the TCC event input for a recoverable fault.

When used as a recoverable fault input, the event system channel connected to the MCEn event input, must be configured to route the event asynchronously.

Value	Name	Description
0x0	DISABLE	Fault input disabled
0x1	ENABLE	MCEn (n = 0,1) event input
0x2	INVERT	Inverted MCEn (n = 0,1) event input
0x3	ALTFAULT	Alternate fault (A or B) state at the end of the previous period.

Name:	FCTRLx
Offset:	0x0C + x*0x04 [x=0..1]
Reset:	0x00000000
Property:	PAC Write-Protection, Enable-Protected