DAVICOM DM9620I

DM9620/DM9621
USB2.0 to 10/100M Fast Ethernet Controller
1. Features
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USB Interface
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USB2.0 Device
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Supports 480Mbps High-Speed
operation
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Supports 12Mbps Full-Speed
operation
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Supports suspend mode and remote
wake-up resume
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Supports USB standard commands
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Supports vendor specific commands
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Supports 4 endpoints (Control,
Interrupt, Bulk_IN, Bulk_OUT)
Ethernet
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Support IEEE802.3u 100BASE-TX
and with IEEE802.3 10BASE-T
standards
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Support IEEE802.3x flow control
function for 100BASE-TX and
10BASET.
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Built-in 10/100Mbps Fast-Ethernet
PHY
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Support HP Auto-MDIX
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Supports MII, RMII and Reverse MII
interface
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Supports Auto-negotiation function
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Back Pressure Mode for half-duplex
mode flow Control
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PAUSE frame for full-duplex flow
control
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Supports wakeup frame, link status
change and Magic packet events for
remote wake-up
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Embedded 13KB SRAM for RX
packet buffering and 3KB SRAM for
TX
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Support TCP / UDP / IP checksum
offload checking and generating
EEPROM Interface
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Supports automatically load vendor
ID and Product ID from EEPROM
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Supports 128/256/512 bytes
Product Brief
Version: 1.2
February 2, 2010
www.davicom.com.tw
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(93C46/93C56/93C66) of serial
EEPROM (for storing USB
Descriptors)
93C46 / 93C66 auto-detection
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LED Indications
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Ethernet – Link / Act indication
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Ethernet – Speed (10M / 100M)
indication
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Ethernet – Duplex (half / full)
indication
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USB speed indication (full / high
speed + traffic modes)
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GPIO Pins
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GPIO #1 – wake-up signal to CPU
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GPIO #2 – Serial Debugging Port
interface (clock)
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GPIO #3 – Serial Debugging Port
interface (data)
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Clock
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Single 25MHz / 30 ppm crystal or
oscillator for Ethernet and 12MHz
for USB
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Power Input
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Low-Power, Single-Supply 3.3V
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Built in 3.3V to 1.8V regulator
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Miscellaneous
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Very Low Power Consumption
mode
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Power Reduced mode (cable
detection), and Power Down mode
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Compatible with 2.5V, 3.3V and
5.0V tolerant I/O
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Supports commercial and industrial
grade
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Package
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DM9620 64 pin LQFP
(with MII/RMII I/F)
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DM9621 48 pin QFN
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DM9620/DM9621
USB2.0 to 10/100M Fast Ethernet Controller
2. General Description
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.
The DM9620 USB2.0 to 10/100Mbps Fast Ethernet
controller with 0.18um CMOS technology is a high
performance and highly integrated ASIC with
embedded 13KB 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.
DM9620 integrates an on-chip 10/100Mbps Ethernet
PHY to simplify system design and provides an
optional media-independent interface (MII).
It has an USB interface to communicate with USB
3. Block Diagram
PHYceiver
MAC
100 Base-TX
PCS
TX Machine
10 Base-T
Tx/Rx
Memory
Management
RX Machine
DP
USB
Tx/Rx
MII
TX+/-
Control &Status
Registers
EP / SIE
controller
100 Base-TX
transceiver
EEPROM
Interface
External MII
Interface
LED
DM
RX+/Internal
SRAM
Autonegotiation
4. Certification
MII Management
Control
& MII Register
USB Logo
5. OS Supports
(1) Linux 2.4 & 2.6, WinCE 5.0 & 6.0 (2) Win XP, VISTA, Windows 7 (3) MAC OS X v10.5
6. Applications
Embedded System: IP STB, DMA, Card Reader, POS, DVR, IPTV, NAS, Networked Printer
USB Dongle: PMP, MID, UMPC, DPF, Netbook, Slim Notebook, Game Console, Portable Device
Product Brief
Version: 1.2
February 2, 2010
www.davicom.com.tw
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