FUSB307BVMPX datasheet(53/57 Pages) ONSEMI

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Table 76. GPIO2_CFG

Address: A5h

Reset Value: 0x00

Type: Read/Write

Bit #

Name

R/W/C

Size (Bits)

General Purpose I/O 2 Configuration

7:4

Reserved

Reserved:0000b

FR_SWAP_FN

R/W

Enable Fast Role Swap I/O function for GPIO2

0b: FR_SWAP I/O function disabled

1b: FR_SWAP I/O function enabled

GPO2_VAL

R/W

Generic GPIO Function

If GPO2_EN = 1 & FR_SWAP_FN = 0

0b: Set output = 0

1b: Set output = 1

Initial Hub Sink Fast Role Swap Function

If GPO2_EN = 1 & FR_SWAP_FN = 1, Set GPO2_VAL = 1.

When a VBUS disconnect is detected, the GPIO2 pin is

automatically set low

GPI2_EN

R/W

Generic GPIO Function

If FR_SWAP_FN = 0

0b: Input buffer disabled

1b: Input Buffer enabled

(Input state can be read in GPIO_STAT Register)

Initial Hub Source Fast Role Swap Function

If FR_SWAP_FN = 1 & GPO2_EN = 0

0b: Input buffer disabled

1b: Monitor Input for a High to Low transition and initiate the Fast

Role Swap within tTCPCSendFRSwap

GPO2_EN

R/W

0b: GPO is High−Z

1b: GPO is enabled

Table 77. GPIO_STAT

Address: A6h

Reset Value: 0x00

Type: Read

Bit #

Name

R/W/C

Size (Bits)

General Purpose I/O Input Status

7:2

Reserved

Reserved: 000000b

GPI2_VAL

If GPI2_EN

0b: GPIO2 Input is Low

1b: GPIO2 Input is High

GPI1_VAL

If GPI1_EN

0b: GPIO1 Input is Low

1b: GPIO1 Input is High

Table 78. DRPTOGGLE

Address: A7h

Reset Value: 0x00

Type: Read/Write

Bit #

Name

R/W/C

Size (Bits)

DRP Toggle Timing

7:3

Reserved

Reserved:00000b

1:0

DRPTOGGLE

R/W

00b: tToggleSrc = 15 ms to 30 ms; tToggleSnk = 35 ms to 70 ms

01b: tToggleSrc = 20 ms to 40 ms; tToggleSnk = 30 ms to 60 ms

10b: tToggleSrc = 25 ms to 50 ms; tToggleSnk = 25 ms to 50 ms

11b: tToggleSrc = 30 ms to 60 ms; tToggleSnk = 20 ms to 40 ms

FUSB307BVMPX Datasheet(PDF) 53 Page - ON Semiconductor

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