AM5728 datasheet(10/415 Pages) TI1

10 / 415 page

AM5729, AM5728, AM5726

SPRS953F – DECEMBER 2015 – REVISED MAY 2019

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Product Folder Links: AM5729 AM5728 AM5726

Terminal Configuration and Functions

Table 4-1. Unused Balls Specific Connection Requirements (continued)

BALLS

CONNECTION REQUIREMENTS

V28 / F18 / E20 / E23 / D21 / C20 / C21 / AG25 / AE28 / AD28 / Y27

/ G27 / H28 / K28 / M27 / F17 / C25

These balls must be connected to the corresponding power supply

through an external pull resistor if unused

AF14 (rtc_iso)

This ball should be connected to the corresponding power supply

through an external pull resistor if unused; or can be connected to

F22 (porz) when RTC unused (level translation may be needed)

AB17 (rtc_porz)

This ball should be connected to VSS when RTC is unused; or can

be connected to F22 (porz) when RTC unused (level translation may

be needed)

NOTE

All other unused signal balls with a Pad Configuration Register can be left unconnected with

their internal pullup or pulldown resistor enabled.

NOTE

All other unused signal balls without Pad Configuration Register can be left unconnected.

4.2

Ball Characteristics

Table 4-2 describes the terminal characteristics and the signals multiplexed on each ball. The following list

describes the table column headers:

1. BALL NUMBER: Ball number(s) on the bottom side associated with each signal on the bottom.

2. BALL NAME: Mechanical name from package device (name is taken from muxmode 0).

3. SIGNAL NAME: Names of signals multiplexed on each ball (also notice that the name of the ball is the

signal name in muxmode 0).

NOTE

Table 4-2 does not consider the subsystem multiplexing signals. Subsystem multiplexing

signals are described in Section 4.4, Signal Descriptions.

NOTE

In the Driver off mode, the buffer is configured in high-impedance.

4. PN: This column shows if the functionality is applicable for AM5726 device. Note that the Ball

Characteristics table presents a functionality of super set. If the cell is empty it means that the signal is

available in all devices.

- Yes - Functionality is presented in AM5726

- No - Functionality is not presented in AM5726

An empty box means Yes.

5. MUXMODE: Multiplexing mode number:

a. MUXMODE 0 is the primary muxmode; this means that when MUXMODE=0, the function mapped

on the pin corresponds to the name of the pin. The primary muxmode is not necessarily the default

muxmode.

NOTE

The default muxmode is the mode at the release of the reset; also see the RESET REL.

MUXMODE column.

b. MUXMODE 1 through 15 are possible muxmodes for alternate functions. On each pin, some

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