Texas Instruments TMS320C6454 warranty IPD/IPU Description, Supply Voltage Monitor Pins

TMS320C6454

Fixed-Point Digital Signal Processor

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SPRS311A –APRIL 2006 –REVISED DECEMBER 2006

Table 2-3. Terminal Functions (continued)

PRODUCT PREVIEW

SIGNAL		TYPE (1)
NAME	NO.
RSV34	E6
RSV35	D6
RSV63	AD20	I
RSV64	AC15	I
RSV65	AC17	I
RSV66	AD16	I
RSV67	U16	I
RSV68	V15	I
RSV69	V17	I
RSV70	W16	I
RSV71	W18	I
RSV72	AE17	I
RSV73	AE19	I
RSV74	AE23	I
RSV75	AF20	I
RSV76	AH20	I
RSV77	AJ17	I
RSV78	AJ23	I
CVDDMON	N1
DVDD33MON	L6

DVDD15MON F3 I

DVDD18MONA26

VREFSSTL C14 A

IPD/IPU (2) DESCRIPTION

Reserved. This pin must be connected to the 1.8-V I/O supply (DVDD18) via a 1-kΩresistor for proper device operation.

Reserved. This pin must be connected directly to ground for proper device operation.

Reserved. These pins must be connected directly to VSS for proper device operation.

SUPPLY VOLTAGE MONITOR PINS

Die-side 1.2-V core supply (CVDD) voltage monitor pin. The monitor pins indicate the voltage on the die and, therefore, provide the best probe point for voltage monitoring purposes. For more information regarding the use of this

and other voltage monitoring pins. If the CVDDMON pin is not used, it should be connected directly to the 1.2-V core supply (CVDD).

Die-side 3.3-V I/O supply (DVDD33) voltage monitor pin. The monitor pins indicate the voltage on the die and, therefore, provide the best probe point for

voltage monitoring purposes. For more information regarding the use of this

and other voltage monitoring pins. If the DVDD33MON pin is not used, it should be connected directly to the 3.3-V I/O supply (DVDD33).

Die-side 1.5-/1.8-V I/O supply (DVDD15) voltage monitor pin. The monitor pins indicate the voltage on the die and, therefore, provide the best probe point for

voltage monitoring purposes. For more information regarding the use of this

and other voltage monitoring pins. If the DVDD15MON pin is not used, it should be connected directly to the 1.5-/1.8-V I/O supply (DVDD15).

NOTE: If the RGMII mode of the EMAC is not used, the DVDD15, DVDD15MON, VREFHSTL, RSV13, and RSV14 pins can be connected directly to ground (VSS) to save power. However, connecting these pins directly to ground will prevent

boundary-scan from functioning on the RGMII pins of the EMAC. To preserve boundary-scan functionality on the RGMII pins, see Section 7.3.4.

Die-side 1.8-V I/O supply (DVDD18) voltage monitor pin. The monitor pins indicate the voltage on the die and, therefore, provide the best probe point for

voltage monitoring purposes. For more information regarding the use of this

and other voltage monitoring pins. If the DVDD18MON pin is not used, it should be connected directly to the 1.8-V I/O supply (DVDD18).

SUPPLY VOLTAGE PINS

(DVDD18/2)-V reference for SSTL buffer (DDR2 Memory Controller). This input

voltage can be generated directly from DVDD18 using two 1-kΩresistors to form a resistor divider circuit.

NOTE: The DDR2 Memory Controller is not used, the VREFSSTL, RSV11, and RSV12 pins can be connected directly to ground (VSS) to save power.

However, connecting these pins directly to ground will prevent boundary-scan from functioning on the DDR2 Memory Controller pins. To preserve boundary-scan functionality on the DDR2 Memory Controller pins, see Section 7.3.4.

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