TMS320F28375DPZP datasheet(74/226 Pages) TI

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8.9.6 GPIO Electrical Data and Timing

The peripheral signals are multiplexed with general-purpose input/output (GPIO) signals. On reset, GPIO pins

are configured as inputs. For specific inputs, the user can also select the number of input qualification cycles to

filter unwanted noise glitches.

The GPIO module contains an Output X-BAR which allows an assortment of internal signals to be routed to a

GPIO in the GPIO mux positions denoted as OUTPUTXBARx. The GPIO module also contains an Input X-BAR

which is used to route signals from any GPIO input to different IP blocks such as the ADC(s), eCAP(s),

ePWM(s), and external interrupts. For more details, see the X-BAR chapter in the TMS320F2837xD Dual-Core

Microcontrollers Technical Reference Manual .

8.9.6.1 GPIO - Output Timing

Section 8.9.6.1.1 shows the general-purpose output switching characteristics. Figure 8-12 shows the general-

purpose output timing.

8.9.6.1.1 General-Purpose Output Switching Characteristics

over recommended operating conditions (unless otherwise noted)

PARAMETER

MIN

MAX

UNIT

tr(GPO)

Rise time, GPIO switching low to high

All GPIOs

8(1)

tf(GPO)

Fall time, GPIO switching high to low

All GPIOs

8(1)

tfGPO

Toggling frequency, GPO pins

MHz

(1)

Rise time and fall time vary with load. These values assume a 40-pF load.

GPIO

f(GPO)

r(GPO)

Figure 8-12. General-Purpose Output Timing

TMS320F28379D, TMS320F28379D-Q1, TMS320F28378D, TMS320F28377D

TMS320F28377D-Q1, TMS320F28376D, TMS320F28375D, TMS320F28374D

SPRS880O – DECEMBER 2013 – REVISED FEBRUARY 2021

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TMS320F28375DPZP Scheda tecnica(PDF) 74 Page - Texas Instruments

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