13.17.8.12 Event Input Control

The I/O pins are assembled in PORT groups with up to 32 pins. Group 0 consists of the PA pins, group 1 is for the PB pins, etc. Each PORT group has its own set of PORT registers with offset 0x80. The available number of PORT groups may depend on the package/pin number of the device.

There are up to four input event pins for each PORT group. Each byte of this register addresses one Event input pin.

Name:	EVCTRL
Offset:	0x2C
Reset:	0x00000000
Property:	PAC Write-Protection


Bit	31	30	29	28	27	26	25	24
	PORTEIx	EVACTx[1:0]		PIDx[4:0]
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	23	22	21	20	19	18	17	16
	PORTEIx	EVACTx[1:0]		PIDx[4:0]
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
	PORTEIx	EVACTx[1:0]		PIDx[4:0]
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
	PORTEIx	EVACTx[1:0]		PIDx[4:0]
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 31,23,15,7 – PORTEIx PORT Event Input Enable x [x = 3..0]

Value	Description
0	The event action x (EVACTx) will not be triggered on any incoming event.
1	The event action x (EVACTx) will be triggered on any incoming event.

Bits 30:29, 22:21,14:13,6:5 – EVACTx PORT Event Action x [x = 3..0]

These bits define the event action the PORT will perform on event input x. See also Table 13-49.

Bits 28:24,20:16,12:8,4:0 – PIDx PORT Event Pin Identifier x [x = 3..0]

These bits define the I/O pin on which the event action will be performed, according to Table 13-50.

Table 13-49. PORT Event x Action ( x = [3..0] )
Value	Name	Description
0x0	OUT	Output register of pin will be set to level of event.
0x1	SET	Set output register of pin on event.
0x2	CLR	Clear output register of pin on event.
0x3	TGL	Toggle output register of pin on event.

Table 13-50. PORT Event x Pin Identifier ( x = [3..0] )
Value	Name	Description
0x0	PIN0	Event action to be executed on PIN 0.
0x1	PIN1	Event action to be executed on PIN 1.
...	...	...
0x31	PIN31	Event action to be executed on PIN 31.