30.2.14 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 | |
| ALTTMS | SPI2PIN | DUPPWM | SMBEN | Reserved[1:0] | |||||
| Access | R/PO | R/PO | R/PO | R/PO | r | r | |||
| Reset | 1 | 1 | 1 | 1 | 0 | 0 | |||
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| Reserved | ALTI2C1 | Reserved | |||||||
| Access | r | R/PO | r | ||||||
| Reset | 1 | 1 | 1 |
Bit 14 – ALTTMS Alternate TMS Pin Mapping bit
| Value | Description |
|---|---|
1 |
Default location for TMS pin (shared with PWM pin: RB10) |
0 |
Alternate location for TMS pin (without PWM pin: RB2) |
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 Duplicate PWM Pin Mapping bit
| Value | Description |
|---|---|
1 |
Default 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 |
Enables SMBus 2.0 input threshold voltage |
Bits 9:8 – Reserved[1:0]
Maintain as ‘0’
Bit 7 – Reserved
Maintain as ‘1’
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) |