TMS320C6472ECTZ datasheet(47/269 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.

N25

1.2-V RapidIO termination supply voltage

NC or connected to VSS, if RapidIO is not used

Do not connect this SERDES supply to CVDD1

NOTE: If the RapidIO interface is not used, the CVDD2, AVDDA,

AVDDT

DVDDD, DVDDR, and AVDDT pins can be NC or connected directly

R25

to VSS (GND) to reduce power use. However, connecting these

pins in this way prevents boundary scan from functioning on the

RapidIO pins. To preserve boundary-scan functionality on the

RapidIO pins, see Section 7.3.3.

AC14

AC16

AC18

1.5-V/1.8-V supply voltage for RGMII HSTL buffers

AC20

NC or connected to VSS, if RGMII is not used

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

AD15

DVDD15MON, VREFHSTL, PTV15P, and PTV15N pins can be NC or

DVDD15

AD17

connected directly to VSS (GND) to save power. However,

AD19

connecting these pins in this way will prevent boundary-scan from

functioning on the RGMII pins of the EMAC. To preserve

AD21

boundary-scan functionality on the RGMII pins, see Section 7.3.3.

AH14

AH20

AJ18

0.75-V/0.9-V DVDD15 reference supply voltage

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, and PTV15N pins can be NC or

VREFHSTL

AE17

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.

DDR 0.9-V VREFSSTL reference supply voltage

NC or connected to VSS, if DDR is not used

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

DVDD18MON, VREFSSTL, AVDDA3, AVDDA4, CVDD1, PTV18P, and

VREFSSTL

E10

PTV18N 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.

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