AM69A datasheet(9/299 Pages) TI

9 / 299 page

An empty box means Not Applicable.

7. Ball State During Reset (RX/TX/PULL): State of the terminal while MCU_PORz is asserted, where RX

defines the state of the input buffer, TX defines the state of the output buffer, and PULL defines the state of

internal pull resistors:

• RX (Input buffer)

– Off: The input buffer is disabled.

– On: The input buffer is enabled.

• TX (Output buffer)

– Off: The output buffer is disabled.

– Low: The output buffer is enabled and drives VOL.

• PULL (Internal pull resistors)

– Off: Internal pull resistors are turned off.

– Up: Internal pull-up resistor is turned on.

– Down: Internal pull-down resistor is turned on.

– NA: No internal pull resistor.

• An empty box, or "-" means Not Applicable.

8. Ball State After Reset (RX/TX/PULL): State of the terminal after MCU_PORz is deasserted, where RX

defines the state of the input buffer, TX defines the state of the output buffer, and PULL defines the state of

internal pull resistors:

• RX (Input buffer)

– Off: The input buffer is disabled.

– On: The input buffer is enabled.

• TX (Output buffer)

– Off: The output buffer is disabled.

– SS: The subsystem selected with MUXMODE determines the output buffer state.

• PULL (Internal pull resistors)

– Off: Internal pull resistors are turned off.

– Up: Internal pull-up resistor is turned on.

– Down: Internal pull-down resistor is turned on.

– NA: No internal pull resistor.

• An empty box, NA, or "-" means Not Applicable.

9. Mux Mode After Reset: The value found in this column defines the default pin multiplexed signal function

after MCU_PORz is deasserted.

• An empty box, NA, or "-" means Not Applicable.

10. PULL TYPE: Indicates the presence of an internal pullup or pulldown resistor. Pullup and pulldown resistors

can be enabled or disabled via software.

• PU: Internal pull-up Only

• PD: Internal pull-down Only

• PU/PD: Internal pull-up and pull-down

• An empty box, NA, or "-" means No internal pull.

Note

Configuring two pins to the same pin multiplexed signal function is not supported as this yields

unexpected results. Issues can be easily prevented with the proper software configuration.

When a pad is set into a multiplexing mode which is not defined by pin multiplexing, that pad’s

behavior is undefined. This must be avoided.

11. Power: The power supply of the associated I/O, when applicable.

• An empty box, NA, or "-" means Not Applicable.

12. Hys: Indicates if the input buffer associated with this I/O has hysteresis:

• Yes: Hysteresis Support

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AM69A

SPRSP92 – FEBRUARY 2023

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