Data Sheet

7.3 Alternate Functionality Overview
A wide selection of alternate functionality is available for multiplexing to various pins. The following table shows the name of the alter-
nate functionality in the first column, followed by columns showing the possible LOCATION bitfield settings and the associated GPIO
pin. Refer to 7.2 GPIO Functionality Table for a list of functions available on each GPIO pin.
Note: Some functionality, such as analog interfaces, do not have alternate settings or a LOCATION bitfield. In these cases, the pinout
is shown in the column corresponding to LOCATION 0.
Table 7.3. Alternate Functionality Overview
Alternate LOCATION
Functionality 0 - 3 4 - 7 Description
ACMP0_O
2: PD6
3: PB11
4: PA6
7: PB3
Analog comparator ACMP0, digital output.
ACMP1_O 0: PF2 7: PA5 Analog comparator ACMP1, digital output.
ACMP2_O 0: PD8 Analog comparator ACMP2, digital output.
ACMP3_O 0: PF0 Analog comparator ACMP3, digital output.
ADC0_EXTP 0: PD6 Analog to digital converter ADC0 external reference input positive pin.
ADC1_EXTP 0: PD6 Analog to digital converter ADC1 external reference input positive pin.
BOOT_RX 0: PF1 Bootloader RX.
BOOT_TX 0: PF0 Bootloader TX.
BU_VIN 0: PD8 Battery input for Backup Power Domain.
CAN0_RX 1: PF0 CAN0 RX.
CAN0_TX 1: PF2 CAN0 TX.
CMU_CLK0 0: PA2 4: PF2 Clock Management Unit, clock output number 0.
CMU_CLK1
0: PA1
1: PD8
5: PB11
Clock Management Unit, clock output number 1.
CMU_CLK2
0: PA0
1: PA3
2: PD6
4: PA3
Clock Management Unit, clock output number 2.
CMU_CLKI0
1: PA3
3: PB13
7: PB11
Clock Management Unit, clock input number 0.
DBG_SWCLKTCK
0: PF0 Debug-interface Serial Wire clock input and JTAG Test Clock.
Note that this function is enabled to the pin out of reset, and has a built-in pull down.
DBG_SWDIOTMS
0: PF1 Debug-interface Serial Wire data input / output and JTAG Test Mode Select.
Note that this function is enabled to the pin out of reset, and has a built-in pull up.
DBG_SWO
0: PF2 Debug-interface Serial Wire viewer Output.
Note that this function is not enabled after reset, and must be enabled by software to be
used.
WGM160P Wi-Fi
®
Module Data Sheet
Pin Descriptions
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