DM9620 DAVICOM [Davicom Semiconductor, Inc.], DM9620 Datasheet - Page 45

• Manufacturer Part Number: DM9620
• Description: USB2.0 to 10/100M Fast Ethernet Controller
• Manufacturer: DAVICOM [Davicom Semiconductor, Inc.]

7.1.4 Descriptor Values
All descriptors are stored in it’s default values..
Device Descriptor/18-Byte
Preliminary
Version: DM9620 -15-DS-P02
February 20, 2012
Offset
10
12
14
15
16
17
0
1
2
4
5
6
7
8
Data Format
Offset
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
bLength
bDescriptorType
bcdUSB
bDeviceClass
bDeviceSubClass
bDeviceProtocol
bMaxPacketSize0
idVender
idProduce
bcdDevice
iManufacturer
iProduct
iSerialNumber
bNumConfigurations
Field
ROCR
Name
TSR1
TSR2
GPR
NSR
RSR
RXC
TXC
Size
1
1
2
1
1
1
1
2
2
2
1
1
1
1
Received overflow counter register
Received packet counter
0A46H Vendor ID(0A46) (fm EEP)
Transmit packet counter
0200H USB BCD version
9620H Product ID (fm EEP)
0101H Device release number
Value
Network status register
12H
01H
00H
00H
00H
08H
01H
02H
03H
01H
RX status register
Description
Reserved
Reserved
Reserved
Size of descriptor in bytes
DEVICE Descriptor Type
Class code, assign by USB
Zero: No device level class
01H~FEH : Valid device class
FFH : Vender-specific
SubClass code, assign by USB
Protocol code, assign by USB
Maximum PL for EP0(8,16,32,64)
Index of string descriptor for manufacturer
Index of string descriptor for product
Index of string descriptors for serial number
Number of configurations
Description
USB2.0 to Fast Ethernet Controller
DM9620
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