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USB5926C/KD 数据表(PDF) 18 Page - Microchip Technology |
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USB5926C/KD 数据表(HTML) 18 Page - Microchip Technology |
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18 / 66 page ![]() 2022 Microchip Technology Inc. and its subsidiaries DS00003190C-page 18 USB5926C USB Type-C Control Mode Selection ALT_MUX_EN I (PD) USB Type-C control mode selection. If this pin is low, the hub operates in “Type-C Control Mode 1”. In “Type-C Control Mode 1”, the C_AT- TACH[0:2] and AB[0:2] pin functions are used. If this pin is high, the hub operates in “Type-C Control Mode 2”. In “Type-C Control Mode 2”, the ATTACH_MUX[0:2]A and ATTACH_MUX[0:2]B pin functions are used. This pin has an internal pull-down enabled. If the desired mode is “Type-C Control Mode 1”, then this pin may be left unconnected. TABLE 3-7: MISCELLANEOUS PIN DESCRIPTIONS Name Symbol Buffer Type Description SMBus/I2C Clock SMBCLK I/O12 SMBus/I2C Clock The SMBus/I2C interface acts as SMBus slave or I2C bridge dependent on the device configuration. For information on how to configure this interface refer to Section 3.5.1, CFG_STRAP Configuration. SMBus/I2C Data SMBDATA I/O12 SMBus/I2C Data The SMBus/I2C interface acts as SMBus slave or I2C bridge dependent on the device configuration. For information on how to configure this interface refer to Section 3.5.1, CFG_STRAP Configuration. USB Host Port 1-0 Speed Indicator HOST_TYPE_[1:0] O12 USB Host Port Speed Indicator Tri-state: Not connected 0: USB 3.2 Gen 1 1: USB 2.0 / USB 1.1 General Purpose I/O GPIO[1:9], GPIO12, GPIO[17:23], GPIO[64:71] I/O12 (PU/ PD) General Purpose Inputs/Outputs Refer to Section 3.5.5, General Purpose input/Output Configuration (GPIOx) for details. USB 2.0 Suspend State Indicator SUSP_IND O12 USB 2.0 Suspend State Indicator SUSP_IND can be used as a sideband remote wakeup signal for the host when in USB 2.0 suspend. TABLE 3-6: USB TYPE-C CONNECTOR CONTROLS (CONTINUED) Name Symbol Buffer Type Description |
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