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PDF DM9010 Data sheet ( Hoja de datos )
| Número de pieza | DM9010 | |
| Descripción | 10/100 MbpsSingle Chip Ethernet Controller | |
| Fabricantes | DAVICOM | |
| Logotipo |  |
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DM9010
Single Chip Ethernet Controller with General Processor Interface
DAVICOM Semiconductor, Inc.
DM9010
10/100 Mbps Single Chip Ethernet Controller
with General Processor Interface
DATA SHEET
Preliminary
Version: DM9010-17--DS-P04
Jan. 18, 2006
Preliminary
Version: DM9010-17 -DS-P04
Jan. 18. 2006
1
1 page  
DM9010
Single Chip Ethernet Controller with General Processor Interface
9.6 100BASE-TX RECEIVER ............................................................................................................................................... 46
9.6.1 Signal Detect ........................................................................................................................................................ 46
9.6.2 Adaptive Equalization .......................................................................................................................................... 46
9.6.3 MLT-3 to NRZI Decoder ...................................................................................................................................... 46
9.6.4 Clock Recovery Module ....................................................................................................................................... 46
9.6.5 NRZI to NRZ ........................................................................................................................................................ 46
9.6.6 Serial to Parallel.................................................................................................................................................. 46
9.6.7 Descrambler......................................................................................................................................................... 46
9.6.8 Code Group Alignment ........................................................................................................................................ 47
9.6.9 4B5B Decoder ...................................................................................................................................................... 47
9.7 10BASE-T OPERATION.................................................................................................................................................. 47
9.8 COLLISION DETECTION ................................................................................................................................................. 47
9.9 CARRIER SENSE ............................................................................................................................................................ 47
9.10 AUTO-NEGOTIATION .................................................................................................................................................. 47
9.11 POWER REDUCED MODE............................................................................................................................................. 48
9.11.1 Power Down Mode............................................................................................................................................. 48
9.11.2 Reduced Transmit Power Mode ......................................................................................................................... 48
10. DC AND AC ELECTRICAL CHARACTERISTICS ................................................................................................. 49
10.1 ABSOLUTE MAXIMUM RATINGS ................................................................................................................................. 49
10.1.1 Operating Conditions......................................................................................................................................... 49
10.2 DC ELECTRICAL CHARACTERISTICS (VDD = 3.3V) ................................................................................................... 49
10.3 AC ELECTRICAL CHARACTERISTICS & TIMING WAVEFORMS..................................................................................... 50
10.3.1 TP Interface........................................................................................................................................................ 50
10.3.2 Oscillator/Crystal Timing .................................................................................................................................. 50
10.3.3 Processor I/O Read Timing................................................................................................................................ 50
10.3.4 Processor I/O Write Timing ............................................................................................................................... 51
10.3.5 External MII Interface Transmit Timing ............................................................................................................ 52
10.3.6 External MII Interface Receive Timing .............................................................................................................. 52
10.3.7 MII Management Interface Timing .................................................................................................................... 53
10.3.8 EEPROM Interface Timing ................................................................................................................................ 53
11. APPLICATION NOTES................................................................................................................................................ 54
11.1 NETWORK INTERFACE SIGNAL ROUTING .................................................................................................................... 54
Preliminary
Version: DM9010-17--DS-P04
Jan. 18, 2006
5
5 Page 
DM9010
Single Chip Ethernet Controller with General Processor Interface
5. Pin Description
I= Input, O=Output, I/O= Input/Output, O/D= Open Drain, P= Power,
LI= reset Latch Input, #= asserted low, PD=internal pull-low about 60K ohm, PU=internal pull-high
5.1 MII Interface
Pin No.
Pin Name
37
41,40,39,
38
43
LINK_I
RXD [3:0]
CRS
44
45
46
47
49
53,52,51,
50
COL
RX_DV
RX_ER
RX_CLK
TX_CLK
TXD [3:0]
54 TX_ EN
56 MDIO
57 MDC
I/O Description
I,PD External MII device link status
I,PD External MII Receive Data
4-bit nibble data input (synchronous to RXCLK) when in 10/100 Mbps. MII mode
I/O,PD External MII Carrier Sense
Active high to indicate the pressure of carrier, due to receive or transmit activities
in 10 Base-T or 100 Base-TX mode. This pin is output in reverse MII interface.
I/O,PD External MII Collision Detect. This pin is output in reverse MII interface.
I,PD External MII Receive Data Valid
I,PD External MII Receive Error
I,PD External MII Receive Clock
I/O,PD External MII Transmit Clock. This pin in output in MII interface.
O,PD
O,PD
External MII Transmit Data
4-bit nibble data outputs (synchronous to the TX_CLK) when in 10/100Mbps
nibble mode
TXD [2:0] is also used as the strap pins of IO base address.
IO base = (strap pin value of TXD [2:0]) * 10H + 300H
External MII Transmit Enable
I/O,PD MII Serial Management Data
O,PD
MII Serial Management Data Clock
This pin is also used as the strap pin of the polarity of the INT pin
When the MDC pin is pulled high, the INT pin is low active; otherwise the INT pin
is high active
5.2 Processor Interface
1 IOR#
2 IOW#
3 AEN
4 IOWAIT
Preliminary
Version: DM9010-17--DS-P04
Jan. 18, 2006
I,PD Processor Read Command
This pin is low active at default; its polarity can be modified by EEPROM setting.
See the EEPROM content description for detail
I,PD Processor Write Command
This pin is low active at default; its polarity can be modified by EEPROM setting.
See the EEPROM content description for detail
I,PD Address Enable
A low active signal used to select the DM9010.
O,PD
Processor Command Ready
When a command is issued before last command is completed, the IOWAIT will
be pulled low to indicate the current command is waited
The polarity and output type can be updated by EEPROM. The default is
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet DM9010.PDF ] | |
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