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USB7252/KDX 数据表(PDF) 22 Page - Microchip Technology |
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USB7252/KDX 数据表(HTML) 22 Page - Microchip Technology |
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22 / 65 page ![]() USB7252 DS00002736D-page 22 2018 - 2020 Microchip Technology Inc. TABLE 3-6: PROGRAMMABLE FUNCTIONS DESCRIPTIONS Function Buffer Type Description If Unused Master SMBus/I2C Interface MSTR_I2C_CLK I/O12 Bridging Master SMBus/I2C controller clock (SMBus/I2C controller 1). External 1k-10k pull-up resistors to 3.3V are required if the I2C Master Interface is to be used. Weak pull- down to GND MSTR_I2C_DATA I/O12 Bridging Master SMBus/I2C controller data (SMBus/I2C controller 1). External 1k-10k pull-up resistors to 3.3V are required if the I2C Master Interface is to be used. Weak pull- down to GND Slave SMBus/I2C Interface SLV_I2C_CLK I/O12 Slave SMBus/I2C controller clock (SMBus/I2C controller 2). Exter- nal 1k-10k pull-up resistors to 3.3V are required if the I2C Slave Interface is to be used. Weak pull- down to GND SLV_I2C_DATA I/O12 Slave SMBus/I2C controller data (SMBus/I2C controller 2). External 1k-10k pull-up resistors to 3.3V are required if the I2C Slave Inter- face is to be used. Weak pull- down to GND UART Interface UART_TX O12 UART Transmit Weak pull- down to GND UART_RX I UART Receive Weak pull- down to GND UART_nCTS I UART Clear To Send Weak pull- down to GND UART_nRTS O12 UART Request To Send Weak pull- down to GND UART_nDCD I UART Data Carrier Detect Weak pull- down to GND UART_nDSR I UART Data Set Ready Weak pull- down to GND UART_nDTR O12 UART Data Terminal Ready Weak pull- down to GND I2S Interface I2S_SDI I I2S Serial Data In Weak pull- down to GND |
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