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USB5926C/KD 数据表(PDF) 12 Page - Microchip Technology |
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USB5926C/KD 数据表(HTML) 12 Page - Microchip Technology |
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12 / 65 page ![]() 2019 - 2021 Microchip Technology Inc. DS00003190B-page 12 USB5926C USB 3.1 Gen 1 Ports 2-1 B D- TX USB3DN_TXDM[2:1]B I/O-U Downstream USB Type-C “Orientation B” Super Speed Transmit Data Minus, ports 2 through 1. USB 3.1 Gen 1 Ports 2-1 B D+ RX USB3DN_RXDP[2:1]B I/O-U Downstream USB Type-C “Orientation B” Super Speed Receive Data Plus, ports 2 through 1. USB 3.1 Gen 1 Ports 2-1 B D- RX USB3DN_RXDM[2:1]B I/O-U Downstream USB Type-C “Orientation B” Super Speed Receive Data Minus, ports 2 through 1. TABLE 3-3: USB 2.0 PIN DESCRIPTIONS Name Symbol Buffer Type Description USB 2.0 Upstream D+ USB2UP_DP I/O-U Upstream USB 2.0 Data Plus (D+) USB 2.0 Upstream D- USB2UP_DM I/O-U Upstream USB 2.0 Data Minus (D-) USB 2.0 Ports 6 D+ USB2DN_DP[6:1] I/O-U Downstream USB 2.0 Ports 6-1 Data Plus (D+) USB 2.0 Ports 6 D- USB2DN_DM[6:1] I/O-U Downstream USB 2.0 Ports 6-1 Data Minus (D-) VBUS Detect VBUS_DET IS This signal detects the state of the upstream bus power. When designing a detachable hub, this pin must be con- nected to the VBUS power pin of the upstream USB port through a resistor divider (50 k Ω by 100 kΩ) to provide 3.3 V. For self-powered applications with a permanently attached host, this pin must be connected to either 3.3 V or 5.0 V through a resistor divider to provide 3.3 V. In embedded applications, VBUS_DET may be controlled (toggled) when the host desires to renegotiate a connec- tion without requiring a full reset of the device. TABLE 3-2: USB 3.2 GEN 1 PIN DESCRIPTIONS (CONTINUED) Name Symbol Buffer Type Description |
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