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USB7252P 数据表(PDF) 20 Page - Microchip Technology |
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USB7252P 数据表(HTML) 20 Page - Microchip Technology |
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20 / 64 page  USB7252P DS00003561A-page 20 2018 - 2020 Microchip Technology Inc. A summary of the configuration pin assignments for each of the 4 configurations is provided in Table 3-5. For details on behavior of each programmable function, refer to Table 3-6. Note: CFG_STRAP3 is not used and must be pulled-down to ground via a 200 k resistor. TABLE 3-4: CFG_STRAP[2:1] RESISTOR ENCODING Mode CFG_STRAP2 Resistor Value CFG_STRAP1 Resistor Value Configuration 1 200 kΩ Pull-Down 200 kΩ Pull-Down Configuration 2 200 kΩ Pull-Down 200 kΩ Pull-Up Configuration 3 200 kΩ Pull-Down 10 kΩ Pull-Down Configuration 4 200 kΩ Pull-Down 10 kΩ Pull-Up TABLE 3-5: PF[31:2] FUNCTION ASSIGNMENT Pin Configuration 1 (SMBus/I2C) Configuration 2 (I2S) Configuration 3 (UART) Configuration 4 (GPIO & FlexConnect) PF2 DP1_VCONN1 DP1_VCONN1 DP1_VCONN1 DP1_VCONN1 PF3 DP1_VCONN2 DP1_VCONN2 DP1_VCONN2 DP1_VCONN2 PF4 DP2_DISCHARGE DP2_DISCHARGE DP2_DISCHARGE DP2_DISCHARGE PF5 DP1_DISCHARGE DP1_DISCHARGE DP1_DISCHARGE DP1_DISCHARGE PF6 GPIO70 GPIO70 UART_RX GPIO70 PF7 GPIO71 MIC_DET UART_TX GPIO71 PF8 PD_I2C_DATA PD_I2C_DATA PD_I2C_DATA PD_I2C_DATA PF9 PD_I2C_CLK PD_I2C_CLK PD_I2C_CLK PD_I2C_CLK PF10 DP2_VCONN1 DP2_VCONN1 DP2_VCONN1 DP2_VCONN1 PF11 DP2_VCONN2 DP2_VCONN2 DP2_VCONN2 DP2_VCONN2 PF12 PRT_CTL3_U3 PRT_CTL3_U3 PRT_CTL3_U3 PRT_CTL3_U3 PF13 PRT_CTL3 PRT_CTL3 PRT_CTL3 PRT_CTL3 PF14 GPIO78 I2S_SDI UART_nCTS GPIO78 PF15 PRT_CTL2 PRT_CTL2 PRT_CTL2 PRT_CTL2 PF16 PRT_CTL4 PRT_CTL4 PRT_CTL4 PRT_CTL4 PF17 PRT_CTL1 PRT_CTL1 PRT_CTL1 PRT_CTL1 PF18 ALERT0 ALERT0 ALERT0 ALERT0 PF19 SLV_I2C_DATA I2S_SDO UART_nRTS GPIO83 PF20 SPI_CE_N SPI_CE_N SPI_CE_N SPI_CE_N PF21 SPI_CLK SPI_CLK SPI_CLK SPI_CLK PF22 SPI_D0 SPI_D0 SPI_D0 SPI_D0 PF23 SPI_D1 SPI_D1 SPI_D1 SPI_D1 PF24 SPI_D2 SPI_D2 SPI_D2 SPI_D2 PF25 SPI_D3 SPI_D3 SPI_D3 SPI_D3 PF26 SLV_I2C_CLK I2S_SCK UART_nDSR GPIO90 PF27 GPIO91 I2S_MCLK UART_nDTR GPIO91 PF28 GPIO92 I2S_LRCK UART_nDCD GPIO92 PF29 (Note 3-1) (Note 3-1) (Note 3-1) (Note 3-1) |
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