USB5533B datasheet(33/71 Pages) MICROCHIP

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 2012 - 2015 Microchip Technology Inc.

DS00001680C-page 33

USB5533B

5.5.4.2

Set Address (00h)

The set address command will change the SMBus address to the value in Data1 or memory address 0002h. The next

SMBus read will have to account for this change in address.

5.5.4.3

Get Default Address (01h)

This command will always return the default address of the USB5x3xB (2dh).

5.5.4.4

Get Hub Info (02h)

The command will return the status of the hub in Data1. The status byte follows the following format:

5.5.4.5

Get UCS Port Mask(03h)

This will return a mask of which port is assigned a UCS port controller based on the UCS device detection.

5.5.4.6

Port Connect Status (80h)

Data1 of the memory is written by the SMBus master and after the command is executed Data 2-6 will be populated

with the status of each port.

Data1 is a port mask where each bit represents the port status to return. Bit 0 is the upstream port, bit 1 is the down-

stream port 1, etc.

The port connect status byte can be interpreted as follows:

TABLE 5-7:

SET ADDRESS BYTE

SET ADDR

(0X00)

SMBus Address

Bit

Name

R/W

Description

DEFAULT

Resets to the default SMBus address.

7:0

ADDRESS

New SMBus Address

TABLE 5-8:

HUB INFORMATION

USB2_HUB_INFO

(0X02)

USB2 Hub Information

Bit

Name

R/W

Description

CONFIGURED

1 = Hub is in the configured state.

2 = Hub is in the unconfigured state.

6:0

USB2_ADDRESS

The address of the USB2 hub.

TABLE 5-9:

HUB INFORMATION

PORT_CONNECT

(0X80)

Port Connect Status

Bit

Name

R/W

Description

7:6

Reserved

USB2_SUSPEND

0 = Port is not suspended.

1 = Port is in the L2 Suspend State.

USB3_SUSPEND

0 = Port is not suspended.

1 = Port is in the U3 Suspend State.

3:2

Reserved

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