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RTL8305SB Datasheet

  • RTL8305SB

  • RTL8305SB

  • 66頁(yè)

  • ETC

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RTL8305SB
REALTEK SINGLE CHIP
5-PORT 10/100 MBPS SWITCH CONTROLLER
RTL8305SB
1. Features.............................................................................2
2. General Description .........................................................3
3. Block Diagram..................................................................4
4. Pin Assignments ...............................................................5
5. Pin Descriptions................................................................7
5.1 Media Connection Pins ...............................................7
5.2 Configuration Pins ......................................................7
5.3 Port4 External MAC Interface Pins.............................8
5.4 Miscellaneous Pins....................................................13
5.5 Per Port LED Pins .....................................................14
5.6 Power Pins.................................................................15
5.7 Reserved Pins ............................................................16
5.8 Serial EEPROM and SMI Pins..................................16
5.9 Strapping Pins ...........................................................17
5.10 Port Status Strapping Pins .......................................19
6. Register Description.......................................................21
6.1 PHY0 to 4: PHY Register of Each Port.....................22
6.1.1 Register0: Control Register ...............................22
6.1.2 Register1: Status Register..................................23
6.1.3 Register4: Auto-Negotiation Advertisement Register...........23
6.1.4 Register5: Auto-Negotiation Link Partner Ability Register.....24
6.1.5 Register6: Auto-Negotiation Expansion Register.......24
6.2 PHY0: EEPROM Register0 ......................................25
6.2.1 Register16: EEPROM Byte0 and 1 Register .....25
6.2.2 Register17: EEPROM Byte2 and 3 Register .....25
6.2.3 Register18~20: EEPROM EthernetID Register.25
6.2.4 Register21: EEPROM Byte10 and 11 Register .26
6.2.5 Register22: EEPROM Byte12 and 13 Register .26
6.3 PHY1: EEPROM Register1 ......................................27
6.3.1 Register16~23: EEPROM (Byte 14~29) Register......27
6.3.2 Register24~31: EEPROM VLAN (Byte 30~44) Register....27
6.4 PHY2: Pin & EEPROM Register..............................28
6.4.1 Register16: Pin Register ....................................28
6.4.2 Register17: Pin & EEPROM Register for VLAN......29
6.5 PHY3: Port Control Register.....................................30
6.5.1 Register16: Port Control Register......................30
6.5.2 Register17: EEPROM (Byte 46) Register .........31
6.5.3 Register18~20: EEPROM (Byte 47~52) Register......31
7. Functional Description ..................................................32
7.1 Switch Core Functional Overview ............................32
7.1.1 Application ........................................................32
7.1.2 Port4 ..................................................................32
7.1.3 Port Status Configuration ..................................36
7.1.4 Enable Port ........................................................36
7.1.5 Flow Control......................................................37
7.1.6 Address Search, Learning and Aging ................38
7.1.7 Address Direct Mapping Mode..........................38
7.1.8 Half Duplex Operation ......................................38
7.1.9 Inter-Frame Gap ................................................38
7.1.10 Illegal Frame....................................................38
7.2 Physical Layer Functional Overview ....................... 39
7.2.1 Auto-Negotiation for UTP ................................ 39
7.2.2 10Base-T Transmit Function ............................ 39
7.2.3 10Base-T Receive Function.............................. 39
7.2.4 Link Monitor..................................................... 39
7.2.5 100Base-TX Transmit Function........................ 39
7.2.6 100Base-TX Receive Function ......................... 39
7.2.7 100Base-FX ...................................................... 39
7.2.8 100Base-FX Transmit Function........................ 40
7.2.9 100Base-FX Receive Function ......................... 40
7.2.10 100Base-FX Far-End-Fault-Indication (FEFI) 40
7.2.11 Reduced Fiber Interface .................................. 40
7.2.12 Power Saving Mode........................................ 40
7.2.13 Reg0.11 Power Down Mode ........................... 40
7.2.14 Crossover Detection and Auto Correction ...... 41
7.2.15 Polarity Detection and Correction................... 41
7.3 Advanced Functional Overview ............................... 42
7.3.1 Reset ................................................................. 42
7.3.2 Setup and Configuration ................................... 42
7.3.3 Example of Serial EEPROM: 24LC02 ............. 43
7.3.4 24LC02 Device Operation ................................ 43
7.3.5 SMI ................................................................... 44
7.3.6 Head-Of-Line Blocking .................................... 44
7.3.7 802.1Q Port Based VLAN ................................ 44
7.3.8 QoS Function .................................................... 46
7.3.9 Insert/Remove VLAN Priority Tag................... 46
7.3.10 Filtering/Forwarding Reserved Control Frame47
7.3.11 Broadcast Storm Control................................. 47
7.3.12 Broadcast In/Out Drop.................................... 47
7.3.13 Loop Detection ............................................... 48
7.3.14 MAC Loopback return to External ................. 49
7.3.15 Reg0.14 PHY Loopback return to Internal ..... 50
7.3.16 LED ................................................................ 50
7.3.17 2.5V Power Generation................................... 52
7.3.18 Crystal/Oscillator ............................................ 52
8. Serial EEPROM Description........................................ 53
9. Electrical Characteristics ............................................. 57
9.1 Absolute Maximum Ratings:.................................... 57
9.2 Operating Range:...................................................... 57
9.3 DC Characteristics.................................................... 57
9.4 AC Characteristics.................................................... 58
9.5 Digital Timing Characteristics.................................. 59
9.6 Thermal Data............................................................ 59
10. Application Information ............................................. 60
10.1 UTP (10Base-T/100Base-TX) Application ............ 60
10.2 100Base-FX Application:....................................... 62
11. System Application Diagram...................................... 63
12. Design and Layout Guide ........................................... 64
13. Mechanical Dimensions .............................................. 65
2002/04/09
1
Rev.1.0

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