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USB5537B Datasheet(PDF) 33 Page - Microchip Technology

Part # USB5537B
Description  7-Port SS/HS USB Hub Controller
PDF  79 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB5537B Datasheet(HTML) 33 Page - Microchip Technology

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 2012 - 2015 Microchip Technology Inc.
DS00001682C-page 33
USB5537B
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
7
DEFAULT
W
Resets to the default SMBus address.
7:0
ADDRESS
W
New SMBus Address
TABLE 5-8:
HUB INFORMATION
USB2_HUB_INFO
(0X02)
USB2 Hub Information
Bit
Name
R/W
Description
7
CONFIGURED
R
1 = Hub is in the configured state.
2 = Hub is in the unconfigured state.
6:0
USB2_ADDRESS
R
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
R
Reserved
5
USB2_SUSPEND
R
0 = Port is not suspended.
1 = Port is in the L2 Suspend State.
4
USB3_SUSPEND
R
0 = Port is not suspended.
1 = Port is in the U3 Suspend State.
3:2
Reserved
R
Reserved



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