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USB 2.0 to Ethernet Controller
The DM9621 USB to 10/100Mbps Fast Ethernet controller
is a high performance and highly integrated ASIC with embedded SRAM
for
packet buffering. It enables low cost and affordable Fast Ethernet network
connection to desktop, notebook PC, and embedded system using popular
USB ports.
It has an USB interface to communicate with USB host controller and is
compliant with USB specification V1.0, V1.1 and V2.0. It implements 10/100Mbps
Ethernet LAN function based on IEEE802.3, and IEEE802.3u standards.
Features
USB Interface
USB Interface
USB2.0 Device
Supports 12Mbps Full-Speed operation
Supports 480Mbps High-Speed operation
Supports suspend mode and remote wake-up Resume
Supports USB standard commands
Supports vendor specific commands
Efficient TX/RX FIFO auto management.
Supports 4 endpoints (Control, Interrupt, Bulk_IN, Bulk_OUT)
Supported Classes USB Common Class / USB Communications Class
Ethernet
Support IEEE802.3u 100BASE-TX and with IEEE802.3 10BASE-T standards
Support IEEE802.3x flow control function for 100BASE-TX and 10BASET.
Built-in 10/100Mbps Fast-Ethernet PHY
Supports 8 pins GPIO
Support Auto-negotiation function
Back Pressure Mode for half-duplex mode flow Control
PAUSE frame for full-duplex flow control
Supports GPIO, wakeup frame, link status change and Magic packet events
for
remote wake-up
Support TCP / UDP / IP checksum offload checking and generating
EEPROM Interface
Supports 128/256/512 bytes (93C06/93C46/93C56/93C66) of serial
EEPROM(for storing USB Descriptors)
93C06/93C46/93C56/93C66 auto-detection
LED Indications
Ethernet – Link / Act indication
Ethernet – Speed (10M / 100M) indication
USB speed indication (full / high speed + traffic modes
Clock
Single 25MHz / 30 ppm crystal or oscillator
Optional 12MHz crystal for USB
Power
Low-Power, Single-Supply 3.3V, 0.18um CMOS Technology
Built in 3.3V to 1.8V regulator
Very Low Power Consumption in suspend mode
Power Reduced mode (cable detection), and Power Down mode
Compatible with 2.5V, 3.3V and 5.0V tolerant I/O
| Ordering Information: |
| Product |
RoHs |
Temp.-Range |
Package |
Status |
| DM9621 EP |
yes |
0°C - +70°C |
48pin LQFP |
available |
Additional Documents:
DM9621
Data Sheet
General
Layout Guide
DM9620/DM9621
EVB User Manual
DM9620/DM9621
Schematic Diagram
DM9620/Dm9621
DemoBoard PCB+ASC Export
DM9620 Driver
Installation on RMI AU1250 Platform
Design Hint Connection
RJ45 - Center Tabs to PHY
DM9620/DM9621
Demo Board Layout Guideline
RoHs and further information:
RoHs Compliance Information
Recommended
Soldering
MSL Level 3 according to IPC/JEDEC
J-STD-020C
Customs clearance number: 85423190 according to
Liste vom Statistischen Bundesamt valid from
01.01.2007
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