27.2.14 FDEVOPT Configuration Register

Note:

Fixed pin option is only available for higher pin packages (48-pin, 64-pin and 80-pin).

Legend: PO = Program Once bit; r = Reserved bit

Name:	FDEVOPT
Offset:	0xF40


Bit	23	22	21	20	19	18	17	16

Access
Reset


Bit	15	14	13	12	11	10	9	8
			SPI2PIN	DUPPWM		SMBEN	Reserved[1:0]
Access			R/PO	R/PO		R/PO	r	r
Reset			1	1		1	0	0


Bit	7	6	5	4	3	2	1	0
	Reserved		ALTI2C3	ALTI2C2	ALTI2C1	Reserved
Access	r		R/PO	R/PO	R/PO	r
Reset	1		1	1	1	1

Bit 13 – SPI2PIN Main SPI #2 Fast I/O Pad Disable bit⁽¹⁾

Value	Description
`1`	Host SPI2 uses PPS (I/O remap) to make connections with device pins.
`0`	Host SPI2 uses direct connections with specified device pins.

Bit 12 – DUPPWM DUPPWM bit

Value	Description
`1`	PWM4 functions on PPS and fixed pins .
`0`	PWM4 functions only on fixed pins.

Bit 10 – SMBEN Select Input Voltage Threshold for I²C Pads to be SMBus 3.0 Compliant bit

Value	Description
`1`	Enables SMBus 3.0 input threshold voltage.
`0`	I²C pad input buffer operation.

Bits 9:8 – Reserved[1:0] Maintain as ‘`0`’ bits

Bit 7 – Reserved Maintain as ‘`1`’ bit

Bit 5 – ALTI2C3 Alternate I2C3 Pin Mapping bit

Value	Description
`1`	Default location for SCL3/SDA3 pins.
`0`	Alternate location for SCL3/SDA3 pins (ASCL3/ASDA3).

Bit 4 – ALTI2C2 Alternate I2C2 Pin Mapping bit

Value	Description
`1`	Default location for SCL2/SDA2 pins.
`0`	Alternate location for SCL2/SDA2 pins (ASCL2/ASDA2).

Bit 3 – ALTI2C1 Alternate I2C1 Pin Mapping bit

Value	Description
`1`	Default location for SCL1/SDA1 pins.
`0`	Alternate location for SCL1/SDA1 pins (ASCL1/ASDA1).

Bit 2 – Reserved Maintain as ‘`1`’ bit

DS70005633B

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