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DM8203EP Datasheet(PDF) 13 Page - Davicom Semiconductor, Inc.

Part # DM8203EP
Description  10/100 Mbps 2-port Ethernet Switch Controller With MII / RMII Interface
PDF  63 Pages
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Manufacturer  DAVICOM [Davicom Semiconductor, Inc.]
Direct Link  http://www.davicom.com.tw
Logo DAVICOM - Davicom Semiconductor, Inc.

DM8203EP Datasheet(HTML) 13 Page - Davicom Semiconductor, Inc.

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DM8203
2-port switch with MII / RMII Interface
Preliminary datasheet
13
DM8203-15-DS-P05
October 23, 2008
5.4 Clock Interface
Pin No.
Pin Name
I/O
Description
52
X1
I
Crystal 25MHz In
53
X2
O
Crystal 25MHz Out
5.5 Network Interface
Pin No.
Pin Name
I/O
Description
34,35
TX1+/-
I/O
Port 1 TP TX
These two pins are the Twisted Pair transmit in MDI
mode or receive in MDIX mode.
37,38
RX1+/-
I/O
Port 1 TP RX
These two pins are the Twisted Pair receive in MDI
mode or transmit in MDIX mode.
41,42
TX0+/-
I/O
Port 0 TP TX
These two pins are the Twisted Pair transmit in MDI
mode or receive in MDIX mode.
44,45
RX0+/-
I/O
Port 0 TP RX
These two pins are the Twisted Pair receive in MDI
mode or transmit in MDIX mode.
47
BGRES
I/O
Band gap Pin
Connect a 1.4K resistor to BGGND in application.
48
BGGND
P
Band gap Ground
49
VCNTL
I/O
1.8V Voltage control
50
VREF
O
Voltage Reference
Connect a 0.1u capacitor to ground in application.
5.6 Miscellaneous Pins
Pin No.
Pin Name
I/O
Description
30
PWRST#
I
Power on Reset
Low active with minimum 1ms
60
SMI_CK
I
Serial data management interface clock
62
SMI_DIO
I/O
Serial data management interface in / out
32
TEST1
I,PD Tie to VCC3 in application
59
TEST2
I,PD Tie to GND in application
63
TEST3
I,PD Tie to VCC3 in application
5.7 Power Pins
Pin No.
Pin Name
I/O
Description
1,13,26,51
VCC3
P
Digital 3.3V
11,61
VCCI
P
Internal 1.8V core power
4,8,16,23,31,54,64
GND
P
Digital GND
39,46
AVDD3
P
Analog 3.3V power
33,40
AVDDI
P
Analog 1.8V power
36,43
AGND
P
Analog GND



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