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TUSB9260PVP Datasheet(PDF) 11 Page - Texas Instruments |
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TUSB9260PVP Datasheet(HTML) 11 Page - Texas Instruments |
11 / 21 page TUSB9260 www.ti.com SLLS962C – DECEMBER 2009 – REVISED JULY 2010 4 SIGNAL DESCRIPTIONS Table 4-1. I/O Definitions I/O TYPE DESCRIPTION I Input O Output I/O Input - Output PU Internal pull-up resistor PD Internal pull-down resistor PWR Power signal Table 4-2. Clock and Reset Signals TERMINAL I/O DESCRIPTION PIN NAME NO. I Global power reset. This reset brings all of the TUSB9260 internal registers to their default GRSTz 4 PU states. When GRSTz is asserted, the device is completely nonfunctional. Crystal input. This terminal is the crystal input for the internal oscillator. The input may alternately XI 52 I be driven by the output of an external oscillator. When using a crystal a 1-M Ω feedback resistor is required between X1 and XO. Crystal output. This terminal is the crystal output for the internal oscillator. If XI is driven by an XO 54 O external oscillator this pin may be left unconnected. When using a crystal a 1-M Ω feedback resistor is required between X1 and XO. Frequency select. These terminals indicate the oscillator input frequency and are used to configure the correct PLL multiplier. The field encoding is as follows: FREQSEL[1] FREQSEL[0] INPUT CLOCK FREQUENCY I 0 0 Reserved FREQSEL[1:0] 31, 30 PU 0 1 Reserved 1 0 Reserved 1 1 40 MHz Table 4-3. SATA Interface Signals TERMINAL I/O DESCRIPTION PIN NAME NO. SATA_TXP 57 O Serial ATA transmitter differential pair (positive) SATA_TXM 56 O Serial ATA transmitter differential pair (negative) SATA_RXP 60 I Serial ATA receiver differential pair (positive) SATA_RXM 59 I Serial ATA receiver differential pair (negative) Copyright © 2009–2010, Texas Instruments Incorporated SIGNAL DESCRIPTIONS 11 Submit Documentation Feedback Product Folder Link(s): TUSB9260 |
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