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Teilenummer | DM8203 |
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Beschreibung | 10/100 Mbps 3-port Ethernet Switch Controller | |
Hersteller | DAVICOM | |
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Gesamt 30 Seiten DM8203
10/100 Mbps 3-port Ethernet Switch Controller with MII / RMII Interface
DAVICOM Semiconductor, Inc.
DM8203
10/100 Mbps 3-port Ethernet Switch Controller
with MII / RMII Interface
DATASHEET
Preliminary Datasheet
Version: DM8203-DS-P08
October 31, 2012
Preliminary datasheet
DM8203-18-DS-P08
October 31, 2012
1
DM8203
10/100 Mbps 3-port Ethernet Switch Controller with MII / RMII Interface
11.2 Application of Reverse MII............................................................................................................... 74
11.3 Application of Reduce MII to PHY................................................................................................... 75
11.4 Application of Reduce MII to MAC.................................................................................................. 76
12. PACKAGE INFORMATION................................................................................... 77
13. ORDERING INFORMATION ................................................................................. 78
Preliminary datasheet
DM8203-18-DS-P08
October 31, 2012
6
6 Page 5.4 Clock Interface
Pin No.
52
53
Pin Name
X1
X2
DM8203
10/100 Mbps 3-port Ethernet Switch Controller with MII / RMII Interface
I/O Description
I Crystal 25MHz In
O Crystal 25MHz Out
5.5 Network Interface
Pin No.
Pin Name
34,35
TX1+/-
37,38
RX1+/-
41,42
TX0+/-
44,45
RX0+/-
47 BGRES
48 BGGND
49 VCNTL
50 VREF
I/O Description
I/O Port 1 TP TX/PECL
These two pins are the Twisted Pair transmit in MDI mode
or receive in MDIX mode
I/O Port 1 TP RX/PECL
These two pins are the Twisted Pair receive in MDI mode
or transmit in MDIX mode
I/O Port 0 TP TX/PECL
These two pins are the Twisted Pair transmit in MDI mode
or receive in MDIX mode
I/O Port 0 TP RX/PECL
These two pins are the Twisted Pair receive in MDI mode
or transmit in MDIX mode
I/O Band-Gap Pin
Connect a 6.8K resistor to BGGND in application
P Band-Gap Ground
I/O 1.8V Voltage Control
O Voltage Reference
Connect a 0.1u capacitor to ground in application
5.6 Miscellaneous Pins
Pin No.
Pin Name
30 PWRST#
60 SMI_CK
62 SMI_DIO
32 TEST1
59 TEST2
63 TEST3
I/O Description
I
I
I/O, PD
I,PD
I, PD
I, PD
Power on Reset
Low active with minimum 1ms
Serial Data Management Interface Clock
Serial Data Management Interface Data In/Out
Test Pin 1
Tie to VCC33 in application
Test Pin 2
Tie to GND in application
Test Pin 3
Tie to VCC33 in application
Preliminary datasheet
DM8203-18-DS-P08
October 31, 2012
12
12 Page | ||
Seiten | Gesamt 30 Seiten | |
PDF Download | [ DM8203 Schematic.PDF ] |
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