dm9621 Davicom Semiconductor, Inc., dm9621 Datasheet
dm9621
Manufacturer Part Number
dm9621
Description
Usb2.0 To 10/100m Fast Ethernet Controller
Manufacturer
Davicom Semiconductor, Inc.
Datasheet
1.DM9621.pdf
(2 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
dm9621ANP
Manufacturer:
DAVICOM
Quantity:
20 000
1. Features
Product Brief
Version: 1.1
April 9, 2009
USB Interface
Ethernet
EEPROM Interface
USB2.0 Device
Supports 480Mbps High-Speed
operation
Supports 12Mbps Full-Speed
operation
Supports suspend mode and remote
wake-up resume
Supports USB standard commands
Supports vendor specific commands
Supports 4 endpoints (Control,
Interrupt, Bulk_IN, Bulk_OUT)
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
Support HP Auto-MDIX
Supports MII, RMII and Reverse MII
interface
Supports Auto-negotiation function
Back Pressure Mode for half-duplex
mode flow Control
PAUSE frame for full-duplex flow
control
Supports wakeup frame, link status
change and Magic packet events for
remote wake-up
Embedded 13KB SRAM for RX
packet buffering and 3KB SRAM for
TX
Support TCP / UDP / IP checksum
offload checking and generating
Supports automatically load vendor
ID and Product ID from EEPROM
Supports 128/256/512 bytes
www.davicom.com.tw
USB2.0 to 10/100M Fast Ethernet Controller
LED Indications
GPIO Pins
Clock
Power Input
Miscellaneous
Package
(93C46/93C56/93C66) of serial
EEPROM (for storing USB
Descriptors)
93C46 / 93C66 auto-detection
Ethernet – Link / Act indication
Ethernet – Speed (10M / 100M)
indication
Ethernet – Duplex (half / full)
indication
USB speed indication (full / high
speed + traffic modes)
GPIO #1 – wake-up signal to CPU
GPIO #2 – Serial Debugging Port
interface (clock)
GPIO #3 – Serial Debugging Port
interface (data)
Single 25MHz / 30 ppm crystal or
oscillator for Ethernet and 12MHz
for USB
Low-Power, Single-Supply 3.3V
Built in 3.3V to 1.8V regulator
Very Low Power Consumption
mode
Power Reduced mode (cable
detection), and Power Down mode
Compatible with 2.5V, 3.3V and
5.0V tolerant I/O
Supports commercial and industrial
grade
DM9620 64 pin LQFP (with MII I/F)
DM9621 48 pin QFN (with RMII I/F)
DM9620/DM9621
1
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dm9621 Summary of contents
Page 1
... Low-Power, Single-Supply 3.3V Built in 3.3V to 1.8V regulator Miscellaneous Very Low Power Consumption mode Power Reduced mode (cable detection), and Power Down mode Compatible with 2.5V, 3.3V and 5.0V tolerant I/O Supports commercial and industrial grade Package DM9620 64 pin LQFP (with MII I/F) DM9621 48 pin QFN (with RMII I/F) www.davicom.com.tw DM9620/DM9621 1 ...
Page 2
... PHY to simplify system design and provides an optional media-independent interface (MII). External MII LED Interface 100 Base-TX TX Machine PCS Control &Status MII Registers 10 Base-T RX Machine Tx/Rx MII Management Control & MII Register www.davicom.com.tw DM9620/DM9621 USB2.0 to 10/100M Fast Ethernet Controller EEPROM Interface MAC Memory Management Internal SRAM ...