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DM9621 Datasheet(PDF) 11 Page - Davicom Semiconductor, Inc.

Part # DM9621
Description  USB2.0 to 10/100M Fast Ethernet Controller
PDF  66 Pages
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Manufacturer  DAVICOM [Davicom Semiconductor, Inc.]
Direct Link  http://www.davicom.com.tw
Logo DAVICOM - Davicom Semiconductor, Inc.

DM9621 Datasheet(HTML) 11 Page - Davicom Semiconductor, Inc.

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DM9621
USB2.0 to Fast Ethernet Controller
Preliminary
11
Version: DM9621 -14-DS-P02
February 23, 2011
LED Interface
27
USB_LED
O
USB LED
Active low for USB HS mode
Floating for USB FS mode
Flash if traffic on USB
28
SPD_LED
O
SPEED LED
Active low for Ethernet 100M
Floating for Ethernet 10M
29
LNK_LED
O
Link LED
Active low for Ethernet link
Floating for Ethernet non-link
Flash if traffic on Ethernet
10/100 PHY
1
BGGND
P
Band gap ground.
2
BGRES
I/O
Bandgap pin. Connect 6.98K 1% resister to GND
3
RXVDDOUT
O
1.8V power out for RX
4
RX+
I
TP RX input
5
RX-
I
TP RX input
6
RXGND
P
RX ground
7
TXGND
P
TX ground
8
TX+
O
TP TX output
9
TX-
O
TP TX output
10
TXVDDOUT
O
1.8V power out for TX power
Miscellaneous
25
SMI_D
I/O
Serial Management Interface Data.
Tie to ground in application.
26
SMI_CK
I/O
Serial Management Interface Clock.
Tie to ground in application.
This pin can also as a GPIO wakeup event defined in register 0FH.
32
VBUS_IN
I
VBUS input
Tie to high in bus power mode
33
WOL
O
Issue a wake-up signal when wake-up event happens.
34
RSTB
I
Hardware Reset
Active low signal to initiate the DM9621
31
TEST2
I
Test Mode 2, tie to ground in application.
30
TEST1
I
Define Pin11-15, 17-19 mode
0: RMII
1: GPIO controlled by registers 34H~35H
Power
24,45
VCC3
P
Digital VCC 3.3V
16,48
GND
P
Digital GND



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