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LAN9210 Datasheet(PDF) 6 Page - SMSC Corporation

Part # LAN9210
Description  Small Form Factor Single- Chip Ethernet Controller with HP Auto-MDIX
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Manufacturer  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
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LAN9210 Datasheet(HTML) 6 Page - SMSC Corporation

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High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
Revision 1.2 (04-08-08)
6
SMSC LAN9312
DATASHEET
9.2
Flow Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
9.2.1
Full-Duplex Flow Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
9.2.2
Half-Duplex Flow Control (Backpressure) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
9.3
Virtual Local Area Network (VLAN) Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
9.4
Address Filtering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
9.4.1
Perfect Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
9.4.2
Hash Only Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
9.4.3
Hash Perfect Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
9.4.4
Inverse Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
9.5
Wake-up Frame Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
9.5.1
Magic Packet Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
9.6
Host MAC Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
9.7
FIFOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
9.7.1
TX/RX FIFOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
9.7.2
MIL FIFOs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
9.7.3
FIFO Memory Allocation Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
9.8
TX Data Path Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
9.8.1
TX Buffer Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
9.8.2
TX Command Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
9.8.2.1
TX Command ‘A’........................................................................................................................................................................................... 125
9.8.2.2
TX Command ‘B’........................................................................................................................................................................................... 126
9.8.3
TX Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
9.8.3.1
TX Buffer Fragmentation Rules .................................................................................................................................................................... 126
9.8.3.2
Calculating Worst-Case TX MIL FIFO Usage ............................................................................................................................................... 127
9.8.4
TX Status Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
9.8.5
Calculating Actual TX Data FIFO Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
9.8.6
Transmit Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
9.8.6.1
TX Example 1 ............................................................................................................................................................................................... 128
9.8.6.2
TX Example 2 ............................................................................................................................................................................................... 130
9.8.7
TX Data FIFO Underrun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
9.8.8
Transmitter Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
9.8.9
Stopping and Starting the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
9.9
RX Data Path Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
9.9.1
RX Slave PIO Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
9.9.1.1
Receive Data FIFO Fast Forward ................................................................................................................................................................. 134
9.9.1.2
Force Receiver Discard (Receiver Dump) .................................................................................................................................................... 134
9.9.2
RX Packet Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
9.9.3
RX Status Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
9.9.4
Stopping and Starting the Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
9.9.5
Receiver Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Chapter 10 Serial Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
10.1
Functional Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
10.2
I2C/Microwire Master EEPROM Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
10.2.1 EEPROM Controller Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
10.2.2 I2C EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
10.2.2.1
I2C Protocol Overview .................................................................................................................................................................................. 140
10.2.2.2
I2C EEPROM Device Addressing................................................................................................................................................................. 141
10.2.2.3
I2C EEPROM Byte Read .............................................................................................................................................................................. 142
10.2.2.4
I2C EEPROM Sequential Byte Reads .......................................................................................................................................................... 142
10.2.2.5
I2C EEPROM Byte Writes ............................................................................................................................................................................ 143
10.2.3 Microwire EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
10.2.3.1
Microwire Master Commands ....................................................................................................................................................................... 144
10.2.3.2
ERASE (Erase Location) .............................................................................................................................................................................. 145
10.2.3.3
ERAL (Erase All)........................................................................................................................................................................................... 146
10.2.3.4
EWDS (Erase/Write Disable) ........................................................................................................................................................................ 146
10.2.3.5
EWEN (Erase/Write Enable)......................................................................................................................................................................... 147
10.2.3.6
READ (Read Location) ................................................................................................................................................................................. 147
10.2.3.7
WRITE (Write Location) ................................................................................................................................................................................ 148
10.2.3.8
WRAL (Write All)........................................................................................................................................................................................... 148
10.2.4 EEPROM Loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
10.2.4.1
EEPROM Loader Operation ......................................................................................................................................................................... 149


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