TMS320DM6467CCUTAV datasheet(32/355 Pages) TI

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TMS320DM6467

SPRS403H – DECEMBER 2007 – REVISED JUNE 2012

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3.7.2

Oscillator/PLL

Table 3-6. Oscillator/PLL Terminal Functions

SIGNAL

TYPE(1)

OTHER(2)

DESCRIPTION

NAME

NO.

OSCILLATOR, PLL

DEV_MXI/

Crystal input DEV_MXI for DEV oscillator (system oscillator, typically 27 MHz). If the

B15

DEV_DVDD18

DEV_CLKIN

internal oscillator is bypassed, this pin is the 1.8-V external oscillator clock input.

Crystal output for DEV oscillator. If the internal oscillator is bypassed, DEV_MXO

DEV_MXO

A15

DEV_DVDD18

should be left as a No Connect.

1.8-V power supply for DEV oscillator. If the internal oscillator is bypassed,

DEV_DVDD18

D15

(3)

DEV_DVDD18 should still be connected to the 1.8-V power supply.

I/O ground for DEV oscillator. If the internal oscillator is bypassed, DEV_DVSS

DEV_DVSS

E14

GND

(3)

should be connected to ground VSS.

1.2-/1.05-V power supply for DEV oscillator. If the internal oscillator is bypassed,

DEV_CVDD

E15

(3)

DEV_CVDD should be connected to the 1.2-/1.05-V power supply (CVDD).

Ground for DEV oscillator. Connect to crystal load capacitors. Do not connect to

DEV_VSS

C15

GND

(3)

board ground (VSS). If the internal oscillator is bypassed, DEV_VSS should still be

connected to ground VSS.

Crystal input for Auxiliary (AUX) oscillator (24/48 MHz for USB, and UART2/1/0 and

AUX_MXI/

McASP1/0). If the internal oscillator is bypassed, this pin is the 1.8-V external

B17

AUX_DVDD18

AUX_CLKIN

oscillator clock input. When the peripheral is not used, AUX_MXI should be left as a

No Connect.

Crystal output for AUX oscillator. If the internal oscillator is bypassed, AUX_MXO

AUX_MXO

A17

AUX_DVDD18

should be left as a No Connect. When the peripheral is not used, AUX_MXO should

be left as a No Connect.

1.8-V power supply for AUX oscillator. If the internal oscillator is bypassed,

AUX_DVDD18 should still be connected to the 1.8-V power supply. When the

AUX_DVDD18

D16

(3)

peripheral is not used, AUX_DVDD18 should be connected to the 1.8-V power

supply.

I/O ground for AUX oscillator. If the internal oscillator is bypassed, AUX_DVSS

AUX_DVSS

C16

GND

(3)

should be connected to ground (VSS). When the peripheral is not used, AUX_DVSS

should be connected to ground (VSS).

1.2-/1.05-V power supply for AUX oscillator. If the internal oscillator is bypassed,

AUX_CVDD should be connected to the 1.2-/1.05-V power supply (CVDD). When the

AUX_CVDD

E16

(3)

peripheral is not used, AUX_CVDD should be connected to the 1.2-/1.05-V power

supply (CVDD).

Ground for AUX oscillator. Connect to crystal load capacitors. Do not connect to

board ground (VSS). If the internal oscillator is bypassed, AUX_VSS should still be

AUX_VSS

C17

GND

(3)

connected to ground (VSS). When the peripheral is not used, AUX_VSS should be

connected to ground (VSS).

PLL1VDD18

B14

(3)

1.8-V power supply for PLLs.

PLL2VDD18

B16

PLL1VSS

C14

GND

(3)

Ground for PLLs.

PLL2VSS

A16

(1)

I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal

(2)

Specifies the operating I/O supply voltage for each signal

(3)

For more information, see the Recommended Operating Conditions table

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