mcs7717 MosChip, mcs7717 Datasheet - Page 10

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

Page 10
MCS7717
Three Port USB Hub with 1 Serial, 1 Printer
Endpoint Descriptions
There are five end points apart from the Control Endpoint
Endpoint
Descriptor #1
Bulk-In
(Parallel Port)
Endpoint
Descriptor #2
Bulk-Out
(Parallel Port)
Endpoint
0
1
2
3
4
5
Control Endpoint
Bulk-Out
Bulk-Out
Interrupt
Bulk-In
Bulk-In
Type
(Bytes)
(Bytes)
Offset
Offset
0
1
2
3
4
6
0
1
2
3
4
6
bEndpointAddress
bEndpointAddress
wMaxPacketSize
wMaxPacketSize
bDescriptorType
bDescriptorType
Field Name
Field Name
bmAddress
bmAddress
bInterval
bInterval
bLength
bLength
Default Functionality
Parallel Printer Port
Parallel Printer Port
Status Endpoint
Serial Port
Serial Port
Function
(Bytes)
(Bytes)
Size
Size
1
1
1
1
2
1
1
1
1
1
2
1
Value
Value
20,00
20,00
(hex)
(hex)
32 Bytes
64 Bytes
32 Bytes
32Bytes
07
05
81
02
FF
07
05
02
02
FF
4 Bytes
Size
Descriptor Length = 7 Bytes
Descriptor Length = 7 Bytes
Endpoint-2, direction: OUT
Endpoint-1, direction: IN
Polling Interval (255mS)
Packet Size = 32 Bytes
Packet Size = 32 Bytes
Type = ENDPOINT
Type = ENDPOINT
Bulk Endpoint
Bulk Endpoint
Comments
Comments
Rev. 1.7