USB2524 datasheet(35/58 Pages) MICROCHIP

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 2013 - 2016 Microchip Technology Inc.

DS00001588B-page 35

USB2524

7.1.4.61

7.1.4.62

7.1.4.63

7.1.4.64

Bit Number

Bit Name

Description

7:0

PORT_ASSIGN_56

Reserved, always = ‘0’.

Bit Number

Bit Name

Description

7:0

PORT_ASSIGN_7

Reserved, always = ‘0’.

Bit Number

Bit Name

Description

7:0

PORT_LOCKOUT

Port Lockout: Locks a port to the currently assigned upstream port, and

doesn’t allow the port to be re-assigned.

‘0’ = port is available to be switched

‘1’ = port is locked to the assigned port.

Bit 7= Reserved, always = ‘0’.

Bit 6= Reserved, always = ‘0’.

Bit 5= Reserved, always = ‘0’.

Bit 4= 1; Port 4 is locked.

Bit 3= 1; Port 3 is locked.

Bit 2= 1; Port 2 is locked.

Bit 1= 1; Port 1 is locked.

Bit 0 is Reserved, always = ‘0’

Bit Number

Bit Name

Description

7:3

Reserved

Reserved. {Note: Software must never write a ‘1’ to these bits}

INTF_PW_DN

SMBus Interface Power Down

0 = Interface is active

1 = Interface power down after ACK has completed.

{Note: This bit is write once and is only cleared by assertion of the external

RESET_N pin.}

RESET

Reset the SMBus Interface and internal memory back to RESET_N assertion

default settings. {Note: During this reset, this bit is automatically cleared to its

default value of 0.}

0 = Normal Run/Idle State.

1 = Force a reset of the registers to their default state.

If the USB_ATTCH bit is set, then this bit will only reset the non write-

protected registers!

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