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.
PTV PINS
If DDR is used, connect to V
SS
(GND) via 200-Ω precision resistor
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
DD3
, AV
DD4
, CV
DD1
, PTV18P, PTV18N,
PTV18P C20 I and HHV18EN 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.
If DDR is used, connect to DV
DD18
(1.8 V) via 200-Ω precision
resistor
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
DD3
, AV
DD4
, CV
DD1
, PTV18P, PTV18N,
PTV18N C19 I
and HHV18EN 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.
If RGMII is used, connect to V
SS
(GND) via 200-Ω precision
resistor
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, PTV15N, and HHV15EN pins
PTV15P AF14 I
can be NC or 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.
If RGMII is used, connect to DV
DD15
(1.5 V/1.8 V) via 200-Ω
precision resistor
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, PTV15N, and HHV15EN pins
PTV15N AE14 I
can be NC or 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.
Copyright © 2009–2011, Texas Instruments Incorporated Device Overview 41
Submit Documentation Feedback
Product Folder Link(s) :TMS320C6472