8.1.4 FWDT Configuration Register

Legend: R = Readable bit; W = Writable bit

Name:	FWDT
Offset:	0x0x7F3030


Bit	31	30	29	28	27	26	25	24

Access
Reset


Bit	23	22	21	20	19	18	17	16
							WDTNVMSL	WDTRSTEN
Access							R/W	R/W
Reset							1	1


Bit	15	14	13	12	11	10	9	8
	WDTEN	WDTWIN[1:0]		RWDTPS[4:0]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	1	0	0	1	0	0	1	0


Bit	7	6	5	4	3	2	1	0
	RCLKSEL[1:0]		SWDTPS[4:0]					WINDIS
Access	R/PO	R/PO	R/W	R/W	R/W	R/W	R/W	R/W
Reset	1	0	0	1	0	1	0	0

Bit 17 – WDTNVMSL WDT Freeze During Programming Enable bit

Value	Description
`1`	Freeze WDT during programming.
`0`	WDT operation unaffected during programming.

Bit 16 – WDTRSTEN WDT Reset bit

Value	Description
`1`	Enables WDT Reset. Run time WDT event will cause a device Reset.
`0`	Disables WDT Reset. Run time WDT event generates a trap.

Bit 15 – WDTEN Watchdog Timer Enable bit

Value	Description
`1`	WDT is enabled in hardware.
`0`	WDT controlled via the ON bit (WDTCONL[15]).

Bits 14:13 – WDTWIN[1:0] Watchdog Timer Window Select bits

Value	Description
`11`	WDT window is 25% (Timer Count > 11xxx...xxxxx for the timer to be cleared)
`10`	WDT window is 37.5% (Timer Count > 101xx...xxxxx for the timer to be cleared).
`01`	WDT window is 50% (Timer Count > 1xxxx...xxxxx for the timer to be cleared).
`00`	WDT Window is 75% (Timer Count >01xxx...xxxxx for the timer to be cleared).

Bits 12:8 – RWDTPS[4:0] Run Mode Watchdog Timer Period Select bits

Configures the postscaler value for Run Mode Counter bits. Refer to Table 34-2.

Bits 7:6 – RCLKSEL[1:0] Watchdog Timer Clock Select bits

Value	Description
`11`	LPRC Oscillator
`10`	BFRC Oscillator
`01`	Reserved
`00`	F_OSC/4

Bits 5:1 – SWDTPS[4:0] Sleep Mode Watchdog Timer Period Select bits

Configures the postscaler value for Sleep Mode Counter bits. Refer to Table 34-2.

Value	Description
`11111`	Divide by 2 ^ 31 = 2,147,483,648
`11110`	Divide by 2 ^ 30 = 1,073,741,824
...
`00001`	Divide by 2 ^ 1 = 2
`00000`	Divide by 2 ^ 1 = 2

Bit 0 – WINDIS Watchdog Window Disable bit

Value	Description
1	Disables Window mode.
0	Enables Window mode.

The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.