TMS320F28374DPTPS datasheet(57/212 Pages) TI1

57 / 212 page

TMS320F28379D, TMS320F28377D

TMS320F28376D, TMS320F28375D, TMS320F28374D

www.ti.com

SPRS880F – DECEMBER 2013 – REVISED NOVEMBER 2015

5.7.3

Clock Specifications

5.7.3.1

Clock Sources

Table 5-6 lists four possible clock sources. Figure 5-7 provides an overview of the device's clocking

system.

Table 5-6. Possible Reference Clock Sources

CLOCK SOURCE

MODULES CLOCKED

COMMENTS

INTOSC1

Can be used to provide clock for:

Internal oscillator 1.

Zero-pin overhead 10-MHz internal oscillator.

•

Watchdog block

•

Main PLL

•

CPU-Timer 2

INTOSC2(1)

Can be used to provide clock for:

Internal oscillator 2.

Zero-pin overhead 10-MHz internal oscillator.

•

Main PLL

•

Auxiliary PLL

•

CPU-Timer 2

XTAL

Can be used to provide clock for:

External crystal or resonator connected between the X1 and X2 pins

or single-ended clock connected to the X1 pin.

•

Main PLL

•

Auxiliary PLL

•

CPU-Timer 2

AUXCLKIN

Can be used to provide clock for:

Single-ended 3.3-V level clock source. GPIO133/AUXCLKIN pin

should be used to provide the input clock.

•

Auxiliary PLL

•

CPU-Timer 2

(1)

On reset, internal oscillator 2 (INTOSC2) is the default clock source for both system PLL (OSCCLK) and auxiliary PLL (AUXOSCCLK).

Specifications

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