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TUSB8040 Datasheet(PDF) 10 Page - Texas Instruments |
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TUSB8040 Datasheet(HTML) 10 Page - Texas Instruments |
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10 / 32 page  Not Recommended for New Designs TUSB8040 SLLSE42I – SEPTEMBER 2010 – REVISED SEPTEMBER 2013 www.ti.com 2.3 USB Downstream Signals Table 2-3. USB Downstream Signals SIGNAL NAME TYPE PIN NO. DESCRIPTION USB_SSTXP_DN0 O 8 USB SuperSpeed transmitter differential pair (positive) USB_SSTXM_DN0 O 9 USB SuperSpeed transmitter differential pair (negative) USB_SSRXP_DN0 I 6 USB SuperSpeed receiver differential pair (positive) USB_SSRXM_DN0 I 7 USB SuperSpeed receiver differential pair (negative) USB_DP_DN0 I/O 2 USB high-speed differential transceiver (positive) USB_DM_DN0 I/O 3 USB high-speed differential transceiver (negative) USB port power on control for downstream power/battery charging enable. The terminal is used for control of the downstream power switch; in addition, the value of the terminal is sampled at the de-assertion of reset to determine the value of the battery charger support for the port as indicated in the Battery Charger Support register: 0 = Battery charging not supported PWRON0z_BATEN0 I/O, PD 39 1 = Battery charging supported The TUSB8040PFP only supports ganged mode. This terminal provides the port power control for all downstream ports. This terminal also determines the battery charging support of all downstream ports. USB downstream port over-current detection. The TUSB8040PFP only supports ganged mode. This terminal receives the over-current indication for all downstream ports. 0 = An overcurrent event has occurred OVERCUR0z I, PU 40 1 = An overcurrent event has not occurred This terminal should be pulled high using a 10-k Ω resistor if power management is not implemented. If power management is enabled, the external circuitry needed should be determined by the power management device. USB_SSTXP_DN1 O 55 USB SuperSpeed transmitter differential pair (positive) USB_SSTXM_DN1 O 56 USB SuperSpeed transmitter differential pair (negative) USB_SSRXP_DN1 I 53 USB SuperSpeed receiver differential pair (positive) USB_SSRXM_DN1 I 54 USB SuperSpeed receiver differential pair (negative) USB_DP_DN1 I/O 60 USB High-speed differential transceiver (positive) USB_DM_DN1 I/O 59 USB High-speed differential transceiver (negative) USB_SSTXP_DN2 O 14 USB SuperSpeed transmitter differential pair (positive) USB_SSTXM_DN2 O 15 USB SuperSpeed transmitter differential pair (negative) USB_SSRXP_DN2 I 12 USB SuperSpeed receiver differential pair (positive) USB_SSRXM_DN2 I 13 USB SuperSpeed receiver differential pair (negative) USB_DP_DN2 I/O 17 USB High-speed differential transceiver (positive) USB_DM_DN2 I/O 18 USB High-speed differential transceiver (negative) USB_SSTXP_DN3 O 49 USB SuperSpeed transmitter differential pair (positive) USB_SSTXM_DN3 O 50 USB SuperSpeed transmitter differential pair (negative) USB_SSRXP_DN3 I 47 USB SuperSpeed receiver differential pair (positive) USB_SSRXM_DN3 I 48 USB SuperSpeed receiver differential pair (negative) USB_DP_DN3 I/O 45 USB High-speed differential transceiver (positive) USB_DM_DN3 I/O 44 USB High-speed differential transceiver (negative) 10 PIN DESCRIPTIONS Copyright © 2010–2013, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: TUSB8040 |
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