SM320C6455-EP

FIXED-POINT DIGITAL SIGNAL PROCESSOR

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SPRS462B – SEPTEMBER 2007 – REVISED JANUARY 2008

Table 2-3. Terminal Functions (continued)

SIGNAL

 

NAME

NO.

 

U16

DVDDRM

V15

 

 

V17

 

W16

DVDD12

W18

 

 

AE17

 

AE19

 

AE23

AVDDT

AF20

 

AH20

 

AJ17

 

AJ23

 

A1

 

B5

TYPE(1) IPD/IPU(2)

DESCRIPTION

SRIO interface supply:

1.25-V core supply voltage (-1000 and -1200 devices)

S1.2-V core supply voltage (-850 and -720 devices).

The source for this supply voltage must be the same as that of CVDD. NOTE: If RapidIO is not used, these pins can be connected directly to VSS.

Main SRIO supply:

1.25-V I/O supply voltage (-1000 and -1200 devices)

S1.2-V I/O supply voltage (-850 and -720 devices). Do not use core supply.

NOTE: If RapidIO is not used, these pins can be connected directly to VSS.

SRIO termination supply:

1.25-V I/O supply voltage (-1000 and -1200 devices)

A1.2-V I/O supply voltage (-850 and -720 devices). Do not use core supply.

NOTE: If RapidIO is not used, these pins can be connected directly to VSS.

 

D2

DVDD15

D5

 

F5

G6

H7

B8

B11

B20

B23

E10

E12

E22

E24

F7

F11

F13

F15

S

1.8-V or 1.5-V I/O supply voltage for the RGMII function of the EMAC.

NOTE: If the RGMII mode of the EMAC is not used, the DVDD15, VREFHSTL, RSV13, and RSV14 pins can be connected to directly ground (VSS) to save

power. However, connecting these pins directly to ground prevents boundary-scan from functioning on the RGMII pins of the EMAC. To preserve boundary-scan functionality on the RGMII pins, see Section 7.3.4.

DVDD18

F17

 

 

F19

 

F23

 

G8

 

G10

 

G12

 

G14

 

G16

 

G18

 

G20

 

G22

 

G24

S

1.8-V I/O supply voltage (DDR2 Memory Controller)

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Texas Instruments SM320C6455-EP manual U16