USB7002 datasheet(18/56 Pages) MICROCHIP

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USB7002

DS00002670C-page 18

 2018-2019 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.

TABLE 3-5:

PF[31:4] FUNCTION ASSIGNMENT

Configuration 1

(SMBus/I2C)

Configuration 2

(I2S)

Configuration 3

(UART)

Configuration 4

(Flex)

PF4

DP2_DISCHARGE

PF5

DP1_DISCHARGE

PF6

GPIO70

UART_RX

GPIO70

PF7

GPIO71

MIC_DET

UART_TX

GPIO71

PF8

DP1_VCONN1

PF9

DP1_VCONN2

PF10

DP2_VCONN1

PF11

DP2_VCONN2

PF12

GPIO76

PF13

PRT_CTL4

PF14

GPIO78

I2S_SDI

UART_nCTS

GPIO78

PF15

PRT_CTL2

PF16

PRT_CTL3

PF17

PRT_CTL1

PF18

MSTR_I2C_CLK

I2S_LRCK

UART_nDCD

GPIO82

PF19

MSTR_I2C_DATA

I2S_SDO

UART_nRTS

GPIO83

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

UART_nDSR

GPIO90

PF27

SLV_I2C_DATA

I2S_MCLK

UART_nDTR

GPIO91

PF28

GPIO92

PF29

GPIO93

PF30

GPIO94

MSTR_I2C_CLK

GPIO94

PF31

GPIO95

MSTR_I2C_DATA

GPIO95

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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