|
|
PDF DM8203 Data sheet ( Hoja de datos )
| Número de pieza | DM8203 | |
| Descripción | 10/100 Mbps 3-port Ethernet Switch Controller | |
| Fabricantes | DAVICOM | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de DM8203 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
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
1 page  
DM8203
10/100 Mbps 3-port Ethernet Switch Controller with MII / RMII Interface
9.4.1.3
Parallel to Serial Converter ............................................................................................ 59
9.4.1.4
NRZ to NRZI Encoder...................................................................................................... 59
9.4.1.5
MLT-3 Converter.............................................................................................................. 59
9.4.1.6
MLT-3 Driver .................................................................................................................... 60
9.4.1.7
4B5B Code Group ........................................................................................................... 61
9.4.2 100Base-TX Receiver .............................................................................................................. 62
9.4.2.1
Signal Detect ................................................................................................................... 62
9.4.2.2
Adaptive Equalization..................................................................................................... 62
9.4.2.3
MLT-3 to NRZI Decoder .................................................................................................. 62
9.4.2.4
Clock Recovery Module.................................................................................................. 62
9.4.2.5
NRZI to NRZ ..................................................................................................................... 62
9.4.2.6
Serial to Parallel .............................................................................................................. 63
9.4.2.7
Descrambler .................................................................................................................... 63
9.4.2.8
Code Group Alignment................................................................................................... 63
9.4.2.9
4B5B Decoder.................................................................................................................. 63
9.4.3 10Base-T Operation................................................................................................................. 64
9.4.4 Collision Detection .................................................................................................................. 64
9.4.5 Carrier Sense............................................................................................................................ 64
9.4.6 Auto-Negotiation...................................................................................................................... 64
9.5 HP Auto-MDIX Functional Descriptions ......................................................................................... 65
10. DC AND AC ELECTRICAL CHARACTERISTICS ................................................ 66
10.1 Absolute Maximum Ratings ............................................................................................................ 66
10.2 Operating Conditions....................................................................................................................... 66
10.3 DC Electrical Characteristics .......................................................................................................... 67
10.4 AC Characteristics ........................................................................................................................... 68
10.4.1 Power On Reset Timing .......................................................................................................... 68
10.4.2 Port 2 MII Interface Transmit Timing...................................................................................... 69
10.4.3 Port 2 MII Interface Receive Timing ....................................................................................... 69
10.4.4 Port 2 RMII Interface Transmit Timing ................................................................................... 70
10.4.5 Port 2 RMII Interface Receive Timing..................................................................................... 70
10.4.6 MII Management Interface Timing .......................................................................................... 71
10.4.7 Host SMI Interface Timing....................................................................................................... 71
10.4.8 EEPROM Timing....................................................................................................................... 72
11. APPLICATION INFORMATION ............................................................................ 73
11.1 Application Circuit............................................................................................................................ 73
Preliminary datasheet
DM8203-18-DS-P08
October 31, 2012
5
5 Page 
5.1.3 Reverse MII Interface
Pin No.
Pin Name
2
3
5,6,7,9
MDC
MDIO
TXD2_3~0
10 TXE2
12 TXC2
14 TXER2
15 CRS2
17 COL2
18
19
20
21,22,24,25
RXER2
RXC2
RXDV2
RXD2_3~0
DM8203
10/100 Mbps 3-port Ethernet Switch Controller with MII / RMII Interface
I/O
O,PD
I/O, PD
O,PD
O,PD
O
O,PD
O
O
I
I
I
I
Description
Reserved
Reserved
Port 2 MII Transmit Data
4-bit nibble data outputs (synchronous to the TXC2)
Port 2 MII Transmit Enable
25MHz Clock Output
Port 2 MII Transmit Error
Port 2 MII Carrier Sense
Output when TXE2 or RXDV2 are asserted
Port 2 MII Collision
Output when TXE2 and RXDV2 are asserted
Port 2 MII Receive Error
Port 2 MII Receive Clock
Port 2 MII Receive Data Valid
Port 2 MII Receive Data
4-bit nibble data input (synchronous to RXC2)
5.2 EEPROM Interface
Pin No.
Pin Name
27 EEDIO
28 EECK
29 EECS
I/O
I/O, PD
O,PD
O,PD
Description
EEPROM Data In/Out
EEPROM Serial Clock
This pin is used as the clock for the EEPROM data transfer
EEPROM Chip Selection
5.3 LED Pins
Pin No.
55
56
57
58
Pin Name
LNK1_LED
SPD1_LED
LNK0_LED
SPD0_LED
I/O Description
O Port 1 Link / Active LED
It is the combined LED of link and carrier sense signal of the
internal PHY1
O Port 1 Speed LED
Its low output indicates that the internal PHY1 is operated in
100M/S, or it is floating for the 10M mode of the internal
PHY1
O Port 0 Link / Active LED
It is the combined LED of link and carrier sense signal of the
internal PHY0
O Port 0 Speed LED
Its low output indicates that the internal PHY0 is operated in
100M/S, or it is floating for the 10M mode of the internal
PHY0
Preliminary datasheet
DM8203-18-DS-P08
October 31, 2012
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet DM8203.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| DM8200 | 4-Bit Magnitude Comparators |  National Semiconductor |
| DM8203 | 10/100 Mbps 3-port Ethernet Switch Controller | DAVICOM |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |