DM9621ANP
USB2.0 to 10/100M Fast Ethernet Controller
1. Features
USB 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)
Ethernet
Support IEEE802.3u 100BASE-TX
and with IEEE802.3 10BASE-T
standards
Support IEEE802.3x flow control
function for 100BASE-TX and
10BASET.
Support IEEE802.3az Energy
Efficient Ethernet (EEE)
Built-in 10/100Mbps Fast-Ethernet
PHY
Support HP Auto-MDIX
Supports RMII interface
Supports Auto-negotiation function
Supports Power management:
Wake-on-LAN, Network Detach,
ARP/NDP Offload
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 SRAM for RX /TX
packet buffering
Support IPv4 / TCP / UDP
checksum offload checking and
generating
EEPROM Interface
Supports automatically load vendor
ID and Product ID from EEPROM
Supports 128/256/512 bytes
(93C46/93C56/93C66) of serial
EEPROM (for storing USB
Descriptors)
93C46 / 93C66 auto-detection
LED Indications
Ethernet – Link / Act indication
Ethernet – Speed (10M / 100M)
indication
Ethernet – Duplex (half / full)
indication
USB speed indication (full / high
speed + traffic modes)
GPIO Pins
GPIO #1 – wake-up signal to CPU
GPIO #2 – Serial Debugging Port
interface (clock)
GPIO #3 – Serial Debugging Port
interface (data)
Clock
Single 25MHz / 30 ppm crystal or
oscillator for Ethernet and 12MHz
for USB
Power Input
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
DM9621ANP 48 pin QFN
Product Brief
Version: 1.2
November 22, 2012
www.davicom.com.tw
1
DM9621ANP
USB2.0 to 10/100M Fast Ethernet Controller
2. General Description
The DM9621ANP 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.
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.
DM9621ANP integrates an on-chip 10/100Mbps
Ethernet PHY to simplify system design and provides
an optional media-independent interface (RMII).
3. Block Diagram
LED
External MII
Interface
EEPROM
Interface
PHYceiver
100 Base-TX
transceiver
TX+/-
10 Base-T
Tx/Rx
RX+/-
100 Base-TX
PCS
MII
MAC
TX Machine
EP / SIE
controller
DP
Control &Status
Registers
Memory
Management
USB
Tx/Rx
DM
RX Machine
Internal
SRAM
Autonegotiation
MII Management
Control
& MII Register
4. Certification:
USB IF and WHQL certified
5. OS Supports:
Windows, WinCE, Linux, Android, Chrome, Mac OS, PXE, DOS
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
7. Ordering Information
Part Number
DM9621ANP
Pin Count
48
Package
QFN
(Pb-Free and Halogen–Free)
Product Brief
Version: 1.2
November 22, 2012
www.davicom.com.tw
2
