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TMS320C6454 Datasheet(PDF) 38 Page - Texas Instruments |
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TMS320C6454 Datasheet(HTML) 38 Page - Texas Instruments |
38 / 225 page www.ti.com TMS320C6454 Fixed-Point Digital Signal Processor SPRS311A – APRIL 2006 – REVISED DECEMBER 2006 Table 2-3. Terminal Functions (continued) SIGNAL TYPE(1) IPD/IPU(2) DESCRIPTION NAME NO. Reserved. This pin must be connected to the 1.8-V I/O supply (DVDD18) via a RSV34 E6 1-k Ω resistor for proper device operation. Reserved. This pin must be connected directly to ground for proper device RSV35 D6 operation. RSV63 AD20 I RSV64 AC15 I RSV65 AC17 I RSV66 AD16 I RSV67 U16 I RSV68 V15 I RSV69 V17 I RSV70 W16 I Reserved. These pins must be connected directly to VSS for proper device operation. RSV71 W18 I RSV72 AE17 I RSV73 AE19 I RSV74 AE23 I RSV75 AF20 I RSV76 AH20 I RSV77 AJ17 I RSV78 AJ23 I 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 CVDDMON N1 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 DVDD33MON L6 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). DVDD15MON F3 I 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 DVDD18MON A26 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-kΩ resistors to form a resistor divider circuit. NOTE: The DDR2 Memory Controller is not used, the VREFSSTL, RSV11, and VREFSSTL C14 A 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. Device Overview 38 Submit Documentation Feedback |
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