Datasheet

PRODUCTPREVIEW
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 V
SS
, if RapidIO is not used
Do not connect this SERDES supply to CV
DD1
NOTE: If the RapidIO interface is not used, the CV
DD2
, AV
DDA
,
AV
DDT
I DV
DDD
, DV
DDR
, and AV
DDT
pins can be NC or connected directly
R25
to V
SS
(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 V
SS
, if RGMII is not used
NOTE: If the RGMII mode of the EMAC is not used, the DV
DD15
,
AD15
DV
DD15MON
, V
REFHSTL
, PTV15P, and PTV15N pins can be NC or
DV
DD15
AD17 I
connected directly to V
SS
(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 DV
DD15
reference supply voltage
NC or connected to V
SS
, if RGMII is not used
NOTE: If the RGMII mode of the EMAC is not used, the DV
DD15
,
DV
DD15MON
, V
REFHSTL
, PTV15P, and PTV15N pins can be NC or
V
REFHSTL
AE17 I
connected directly to V
SS
(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 V
REFSSTL
reference supply voltage
NC or connected to V
SS
, if DDR is not used
NOTE: If the DDR2 Memory Controller is not used, the DV
DD18
,
DV
DD18MON
, V
REFSSTL
, AV
DDA3
, AV
DDA4
, CV
DD1
, PTV18P, and
V
REFSSTL
E10 I PTV18N pins can be NC or connected directly to V
SS
(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.
Copyright © 2009–2011, Texas Instruments Incorporated Device Overview 47
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