AM2431BSDGHIALVR. datasheet(13/282 Pages) TI2

13 / 282 page

5. TYPE: Signal type and direction:

• I = Input

• O = Output

• OD = Output, with open-drain output function

• IO = Input, Output, or simultaneously Input and Output

• IOD = Input, Output, or simultaneously Input and Output, with open-drain output function

• IOZ = Input, Output, or simultaneously Input and Output, with three-state output function

• OZ = Output with three-state output function

• A = Analog

• PWR = Power

• GND = Ground

• CAP = LDO Capacitor

6. DSIS: The deselected input state (DSIS) indicates the state driven to the subsystem input (logic "0", logic

"1", or "pad" level) when the pin multiplexed signal function is not selected by MUXMODE.

• 0: Logic 0 driven to the subsystem input.

• 1: Logic 1 driven to the subsystem input.

• pad: Logic state of the pad is driven to the subsystem input.

• 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.

– High: The output buffer is enabled and drives VOH.

• 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: Not Applicable.

• An empty box 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: Not Applicable.

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

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