48.6.10 UART Comparison Register

Name:	UART_CMPR
Offset:	0x24
Reset:	0x00000000
Property:	Read/Write


Bit	31	30	29	28	27	26	25	24

Access
Reset


Bit	23	22	21	20	19	18	17	16
	VAL2[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
		CMPPAR		CMPMODE
Access		R/W		R/W
Reset		0		0


Bit	7	6	5	4	3	2	1	0
	VAL1[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

Bits 23:16 – VAL2[7:0] Second Comparison Value for Received Character

Value	Description
0–255	The received character must be lower or equal to the value of VAL2 and higher or equal to VAL1 to set CMP flag in UART_SR. If asynchronous partial wake-up is enabled in PMC_SLPWK_ER, the UART requests a system wake-up if condition is met.

Bit 14 – CMPPAR Compare Parity

Value	Description
0	The parity is not checked and a bad parity cannot prevent from waking up the system.
1	The parity is checked and a matching condition on data can be cancelled by an error on parity bit, so no wake-up is performed.

Bit 12 – CMPMODE Comparison Mode

Value	Name	Description
0	FLAG_ONLY	Any character is received and comparison function drives CMP flag.
1	START_CONDITION	Comparison condition must be met to start reception.

Bits 7:0 – VAL1[7:0] First Comparison Value for Received Character

Value	Description
0–255	The received character must be higher or equal to the value of VAL1 and lower or equal to VAL2 to set CMP flag in UART_SR. If asynchronous partial wake-up is enabled in PMC_SLPWK_ER, the UART requests a system wake-up if the condition is met.