mcs7717 MosChip, mcs7717 Datasheet - Page 15

• Manufacturer Part Number: mcs7717
• Description: Three Port Usb Hub With 1 Serial, 1 Printer
• Manufacturer: MosChip

Rev. 1.7
Hub Specific Requests
In this table, the supported hub specific requests are listed
Hub Requests
Port Feature Selectors
Descriptor
Feature
(C_LOCAL_POWER)
Status
C_PORT_OVERCURRENT
Get Hub Descriptor
(Feature Selectors)
(Feature Selectors)
Clear Hub Feature
Clear Port Feature
C_PORT_CONNECTION
Set Port Feature
PORT_OVERCURRENT
Feature Selector Name
Request Name
Get Hub Status
Get Port Status
PORT_CONNECTION
PORT_LOW_SPEED
C_PORT_SUSPEND
C_PORT_ENABLE
PORT_SUSPEND
C_PORT_RESET
PORT_ENABLE
PORT_POWER
*
**
***
PORT_RESET
USB 1.0 specifies 00H; USB 1.1 specifies 29H
Downstream Port Identifier: (1 to 3)
Feature: see next table
bmRequestType
Byte 0 [7:0]
X010 0000
1010 0000
X010 0011
1010 0000
1010 0011
x010 0011
(bin)
Value
(hex)
10
11
12
13
14
0
1
2
3
4
8
9
bRequest
Byte 1
(hex)
06
01
01
03
00
00
Resets and Enables Port
Suspends Port
Power-Up Port
Set Feature
Feature***,00
Feature***,00
00,00/29*
not used
not used
not used
not used
not used
not used
not used
not used
not used
Byte 2, 3
wValue
00,00
00,00
00,00
(hex)
Three Port USB Hub with 1 Serial, 1 Printer
Byte 4, 5
Port**,00
Port**,00
Port**,00
wIndex
00,00
00,00
00,00
(hex)
Clears Port Over-Current-Change bit
Clears Port Connection-Change bit
Length,00
wLength
Byte 6, 7
00,00
00,00
00,00
04,00
04,00
(hex)
Clears Port Reset-Change bit
Clears Suspend-Change bit
Clears Port-Enable bit
MCS7717
Power-Down Port
Clear Feature
Resumes Port
Disables Port
Hub-Status and Status-Change
not used
not used
not used
not used
Hub Descriptor Length
Port Status
(in Bytes)
Data
none
none
none
field
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