TMS570LS3137-EP_15 datasheet(9/157 Pages) TI1

Part #	TMS570LS3137-EP

Description	16- and 32-Bit RISC Flash Microcontroller

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TMS570LS3137-EP

www.ti.com

SPNS230D – OCTOBER 2013 – REVISED FEBRUARY 2015

4.1.1

Pin Attributes

4.1.1.1 identifies the external signal names, the associated pin/ball numbers along with the mechanical

package designator, the pin/ball type (Input, Output, IO, Power or Ground), whether the pin/ball has any

internal pullup/pulldown, whether the pin/ball can be configured as a GPIO, and a functional pin/ball

description. The first signal name listed is the primary function for that terminal. The signal name in Bold is

the function being described. Refer to the TMS570LS31X/21X Technical Reference Manual (SPNU499)

for information on how to select between different multiplexed functions.

NOTE

All I/O signals except nRST are configured as inputs while nPORRST is low and immediately

after nPORRST goes High.

All output-only signals are configured as inputs while nPORRST is low, and are

configured as outputs immediately after nPORRST goes High.

While nPORRST is low, the input buffers are disabled, and the output buffers are

tri-stated.

In the Pin Functions table below, the "Default Pull State" is the state of the pullup or

pulldown while nPORRST is low and immediately after nPORRST goes High. The

default pull direction may change when software configures the pin for an alternate

function. The "Pull Type" is the type of pull asserted when the signal name in bold

is enabled for the given pin.

Pin Configuration and Functions

9

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