USB7056 datasheet(16/55 Pages) MICROCHIP

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USB7056

DS00002675F-page 16

 2022 Microchip Technology Inc. and its subsidiaries

A summary of the configuration pin assignments for each of the 2 configurations is provided in Table 3-5. For details on

behavior of each programmable function, refer to Table 3-6.

TABLE 3-5:

PF[31:3] FUNCTION ASSIGNMENT

Configuration 1

(SMBus/I2C)

Configuration 2

(I2S)

PF3

DP1_VCONN2

PF4

DP1_VCONN1

PF5

DP1_DISCHARGE

PF6

GPIO70

PF7

GPIO71

MIC_DET

PF8

PD_I2C_DATA

PF9

PD_I2C_CLK

PF10

PRT_CTL2_U3

I2S_SDI

PF11

PRT_CTL3_U3

I2S_MCLK

PF12

PRT_CTL4_U3

PF13

PRT_CTL4

PF14

PRT_CTL3

PF15

PRT_CTL2

PF16

PRT_CTL5

PF17

PRT_CTL1

PF18

ALERT0

PF19

GPIO83

I2S_SDO

PF20

SPI_CE_N

PF21

SPI_CLK

PF22

SPI_D0

PF23

SPI_D1

PF24

SPI_D2

PF25

SPI_D3

PF26

SLV_I2C_CLK

I2S_SCK

PF27

SLV_I2C_DATA

PRT_CTL6

PF28

PRT_CTL6

I2S_LRCK

PF29

UPD_RESET_N

PF30

MSTR_I2C_CLK

PF31

MSTR_I2C_DATA

Note:

The default PFx pin functions can be overridden with additional configuration by modification of the pin mux

registers. These changes can be made during the SMBus configuration stage, by programming to OTP

memory, or during runtime (after hub has attached and enumerated) by register writes via the SMBus slave

interface or USB commands to the internal Hub Feature Controller Device.

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