AM6421 datasheet(56/237 Pages) TI

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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

Signal names provided in each Signal Descriptions table, represent the pin layer multiplexed signal

function which is selected via the PADCONFIG registers. Device subsystems may provide an

additional layer of signal multiplexing, which means the signal names described in these tables

may have additional signal functions. For more information, see the respective peripheral chapter

of the device TRM.

2. DESCRIPTION: Description of the signal

3. PIN TYPE: Signal direction and type:

• 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 Device

Configuration chapter of the device TRM.

6.3.1 ADC

Note

The ADC can be configured to operate as eight general-purpose digital inputs. For more information,

see Analog-to-Digital Converter (ADC) section in Peripherals chapter in the device TRM.

6.3.1.1 MAIN Domain

Table 6-2. ADC0 Signal Descriptions

SIGNAL NAME

PIN TYPE

DESCRIPTION

ALV

ADC0_AIN0

ADC Analog Input 0

G20

ADC0_AIN1

ADC Analog Input 1

F20

ADC0_AIN2

ADC Analog Input 2

E21

ADC0_AIN3

ADC Analog Input 3

D20

ADC0_AIN4

ADC Analog Input 4

G21

ADC0_AIN5

ADC Analog Input 5

F21

ADC0_AIN6

ADC Analog Input 6

F19

ADC0_AIN7

ADC Analog Input 7

E20

ADC_EXT_TRIGGER0

ADC Trigger Input

B16, C13

ADC_EXT_TRIGGER1

ADC Trigger Input

D14, D16

AM6442, AM6441, AM6421

AM6412, AM6411

SPRSP56 – JANUARY 2021

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