TMS320C6472ECTZ datasheet(41/269 Pages) TI1

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TMS320C6472

www.ti.com

SPRS612G

– JUNE 2009 – REVISED JULY 2011

Table 2-5. Terminal Functions (continued)

SIGNAL

TYPE(1)

IPD/IPU(2) (3)

DESCRIPTION

NAME

NO.

PTV PINS

If DDR is used, connect to VSS (GND) via 200-Ω precision resistor

NC or connected to VSS, if DDR is not used

NOTE: If the DDR2 Memory Controller is not used, the DVDD18,

DVDD18MON, VREFSSTL, AVDD3, AVDD4, CVDD1, PTV18P, PTV18N,

PTV18P

C20

and HHV18EN pins can be NC or connected directly to VSS

(GND) to save power. However, connecting these pins this way

prevents boundary scan from functioning on the DDR2 Memory

Controller pins. To preserve boundary-scan functionality on the

DDR2 Memory Controller pins, see Section 7.3.3.

If DDR is used, connect to DVDD18 (1.8 V) via 200-Ω precision

resistor

NC or connected to VSS, if DDR is not used

NOTE: If the DDR2 Memory Controller is not used, the DVDD18,

DVDD18MON, VREFSSTL, AVDD3, AVDD4, CVDD1, PTV18P, PTV18N,

PTV18N

C19

and HHV18EN pins can be NC or connected directly to VSS

(GND) to save power. However, connecting these pins this way

prevents boundary scan from functioning on the DDR2 Memory

Controller pins. To preserve boundary-scan functionality on the

DDR2 Memory Controller pins, see Section 7.3.3.

If RGMII is used, connect to VSS (GND) via 200-Ω precision

resistor

NC or connected to VSS, if RGMII is not used

NOTE: If the RGMII mode of the EMAC is not used, the DVDD15,

DVDD15MON, VREFHSTL, PTV15P, PTV15N, and HHV15EN pins

PTV15P

AF14

can be NC or connected directly to VSS (GND) to save power.

However, connecting these pins in this way will prevent

boundary-scan from functioning on the RGMII pins of the EMAC.

To preserve boundary-scan functionality on the RGMII pins, see

Section 7.3.3.

If RGMII is used, connect to DVDD15 (1.5 V/1.8 V) via 200-Ω

precision resistor

NC or connected to VSS, if RGMII is not used

NOTE: If the RGMII mode of the EMAC is not used, the DVDD15,

DVDD15MON, VREFHSTL, PTV15P, PTV15N, and HHV15EN pins

PTV15N

AE14

can be NC or connected directly to VSS (GND) to save power.

However, connecting these pins in this way will prevent

boundary-scan from functioning on the RGMII pins of the EMAC.

To preserve boundary-scan functionality on the RGMII pins, see

Section 7.3.3.

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