CTRLD

Compare x Value (in Active state)

This bit field sets the logical value of the PWMx signal for the corresponding states in the TCD cycle.

These settings are valid only if the Compare Output Value Override (CMPOVR) bit in the Control C (TCDn.CTRLC) register is written to ‘1’.

Table 1. Two and Four Ramp Mode
CMPxVAL	DTA	OTA	DTB	OTB
PWMA	CMPAVAL[0]	CMPAVAL[1]	CMPAVAL[2]	CMPAVAL[3]
PWMB	CMPBVAL[0]	CMPBVAL[1]	CMPBVAL[2]	CMPBVAL[3]

When used in One Ramp mode, WOA will only use the setup for Dead Time A (DTA) and on time A (OTA) to set the output. WOB will only use Dead Time B (DTB) and On Time B (OTB) values to set the output.

Table 2. One Ramp Mode
CMPxVAL	DTA	OTA	DTB	OTB
PWMA	CMPAVAL[1]	CMPAVAL[0]	-	-
PWMB	-	-	CMPBVAL[3]	CMPBVAL[2]

Bit7	6	5	4	3	2	1	0
CMPBVAL[3:0]				CMPAVAL[3:0]
AccessR/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset0	0	0	0	0	0	0	0

Bits 0:3, 4:7 – CMPVAL[3:0]: Compare x Value (in Active state)