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6.3 Signal Descriptions

Many signals are available on multiple pins, according to the software configuration of the pin multiplexing

options.

The following list describes the column headers:

1. SIGNAL NAME: The name of the signal passing through the pin.

Note

In Table 6-1 and Table 6-76 are not described the subsystem multiplexing signals.

2. DESCRIPTION: Description of the signal

3. PIN TYPE: This column describes functionality of the pin when configured for the given mux mode. It does

not represent all capabilities of the pin, and as such, there may be other mux mode configurations where

these pins operate as a push-pull driver:

• I = Input

• O = Output

• IO = Input or Output

• IOD = Open drain terminal - Input or Output

• IOZ = Input, Output or Three-state terminal

• OZ = Output or Three-state terminal

• A = Analog

• PWR = Power

• GND = Ground

• CAP = LDO Capacitor

4. BALL: Associated balls bottom

For more information on the I/O cell configurations, see the Pad Configuration Registers section in the

device TRM.

6.3.1 ADC

6.3.1.1 MCU Domain

Table 6-2. ADC Signal Descriptions

SIGNAL NAME [1]

DESCRIPTION [2]

PIN TYPE

[3]

BALL [4]

MCU_ADC_EXT_TRIGGER0

ADC Trigger Input

AC3

MCU_ADC_EXT_TRIGGER1

ADC Trigger Input

AD3

Table 6-3. ADC0 Signal Descriptions

SIGNAL NAME [1]

DESCRIPTION [2]

PIN TYPE

[3]

BALL [4]

MCU_ADC0_REFN

ADC Reference Input (negative)

MCU_ADC0_REFP

ADC Reference Input (positive)

MCU_ADC0_AIN0

ADC Analog Input 0

MCU_ADC0_AIN1

ADC Analog Input 1

MCU_ADC0_AIN2

ADC Analog Input 2

MCU_ADC0_AIN3

ADC Analog Input 3

MCU_ADC0_AIN4

ADC Analog Input 4

MCU_ADC0_AIN5

ADC Analog Input 5

MCU_ADC0_AIN6

ADC Analog Input 6

MCU_ADC0_AIN7

ADC Analog Input 7

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AM6548, AM6528, AM6546, AM6526

SPRSP52B – DECEMBER 2019 – REVISED JUNE 2021

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