LAN9313 datasheet(5/398 Pages) SMSC

5 / 398 page

Three Port 10/100 Managed Ethernet Switch with MII

Datasheet

SMSC LAN9313/LAN9313i

Revision 1.2 (04-08-08)

DATASHEET

7.2.1.6

100M Phase Lock Loop (PLL) ........................................................................................................................................................................ 88

7.2.2

100BASE-TX Receive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

7.2.2.1

A/D Converter ................................................................................................................................................................................................. 89

7.2.2.2

DSP: Equalizer, BLW Correction and Clock/Data Recovery .......................................................................................................................... 89

7.2.2.3

NRZI and MLT-3 Decoding ............................................................................................................................................................................. 90

7.2.2.4

Descrambler and SIPO ................................................................................................................................................................................... 90

7.2.2.5

5B/4B Decoding .............................................................................................................................................................................................. 90

7.2.2.6

Receiver Errors ............................................................................................................................................................................................... 90

7.2.2.7

MII MAC Interface ........................................................................................................................................................................................... 90

7.2.3

10BASE-T Transmit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

7.2.3.1

7.2.3.2

10M TX Driver and PLL .................................................................................................................................................................................. 91

7.2.4

10BASE-T Receive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

7.2.4.1

Filter and Squelch ........................................................................................................................................................................................... 91

7.2.4.2

10M RX and PLL............................................................................................................................................................................................. 91

7.2.4.3

7.2.4.4

Jabber Detection............................................................................................................................................................................................. 92

7.2.5

PHY Auto-negotiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

7.2.5.1

PHY Pause Flow Control ................................................................................................................................................................................ 94

7.2.5.2

Parallel Detection............................................................................................................................................................................................ 94

7.2.5.3

Restarting Auto-Negotiation............................................................................................................................................................................ 94

7.2.5.4

Disabling Auto-Negotiation ............................................................................................................................................................................. 94

7.2.5.5

Half Vs. Full-Duplex ........................................................................................................................................................................................ 95

7.2.6

HP Auto-MDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

7.2.7

MII MAC Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

7.2.8

PHY Management Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

7.2.8.1

PHY Interrupts ................................................................................................................................................................................................ 96

7.2.9

PHY Power-Down Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

7.2.9.1

PHY General Power-Down ............................................................................................................................................................................. 97

7.2.9.2

PHY Energy Detect Power-Down ................................................................................................................................................................... 97

7.2.10 PHY Resets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

7.2.10.1

PHY Software Reset via RESET_CTL............................................................................................................................................................ 97

7.2.10.2

PHY Software Reset via PHY_BASIC_CTRL_x ............................................................................................................................................. 97

7.2.10.3

PHY Power-Down Reset................................................................................................................................................................................. 97

7.2.11 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

7.2.12 Required Ethernet Magnetics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

7.3

Virtual PHY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

7.3.1

Virtual PHY Auto-Negotiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

7.3.1.1

7.3.1.2

7.3.1.3

Virtual PHY Pause Flow Control ..................................................................................................................................................................... 99

7.3.2

Virtual PHY in MAC Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

7.3.2.1

Full-Duplex Flow Control............................................................................................................................................................................... 100

7.3.3

Virtual PHY Resets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

7.3.3.1

Virtual PHY Software Reset via RESET_CTL .............................................................................................................................................. 100

7.3.3.2

Virtual PHY Software Reset via VPHY_BASIC_CTRL ................................................................................................................................. 100

Chapter 8

Serial Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

8.1

Functional Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

8.2

I2C/Microwire Master EEPROM Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

8.2.1

EEPROM Controller Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

8.2.2

I2C EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

8.2.2.1

I2C Protocol Overview .................................................................................................................................................................................. 104

8.2.2.2

I2C EEPROM Device Addressing................................................................................................................................................................. 105

8.2.2.3

I2C EEPROM Byte Read .............................................................................................................................................................................. 106

8.2.2.4

I2C EEPROM Sequential Byte Reads .......................................................................................................................................................... 106

8.2.2.5

I2C EEPROM Byte Writes ............................................................................................................................................................................ 107

8.2.3

Microwire EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

8.2.3.1

Microwire Master Commands ....................................................................................................................................................................... 108

8.2.3.2

ERASE (Erase Location) .............................................................................................................................................................................. 109

8.2.3.3

ERAL (Erase All)........................................................................................................................................................................................... 110

8.2.3.4

EWDS (Erase/Write Disable) ........................................................................................................................................................................ 110

8.2.3.5

EWEN (Erase/Write Enable)......................................................................................................................................................................... 111

8.2.3.6

READ (Read Location) ................................................................................................................................................................................. 111

8.2.3.7

WRITE (Write Location) ................................................................................................................................................................................ 112

8.2.3.8

WRAL (Write All)........................................................................................................................................................................................... 112

8.2.4

EEPROM Loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

8.2.4.1

EEPROM Loader Operation ......................................................................................................................................................................... 113

8.2.4.2

EEPROM Valid Flag ..................................................................................................................................................................................... 115

8.2.4.3

MAC Address................................................................................................................................................................................................ 115

8.2.4.4

Soft-Straps .................................................................................................................................................................................................... 115

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