RTL8308B Datasheet, PDF (1/28 Pages) List of Unclassifed Manufacturers – REALTEK SINGLE CHIP 8-PORT 10/100 ETHERNET SWITCH CONTROLLER WITH EMBEDDED MEMORY

REALTEK SINGLE CHIP
8-PORT 10/100 ETHERNET
SWITCH CONTROLLER
WITH EMBEDDED MEMORY
RTL8308B
RTL8308B
1. Features ................................................................2
2. General Description ............................................3
3. Block Diagram .....................................................4
4. Pin Assignments...................................................5
5. Pin Description ....................................................6
5.1 RMII Interface ................................................6
5.2 Serial EEPROM 24LC02 Interface.................7
5.3 System Pins.....................................................7
5.4 Mode Pins (Reset-Read) .................................7
5.5 LED Pin ..........................................................8
5.6 Test Pin............................................................8
5.7 Power & Ground Pins .....................................8
6. Functional Description........................................9
6.1 Reset................................................................9
6.2 Network Interface ...........................................9
6.2.1 Medium Access Control ..........................9
6.2.2 Auto Negotiation....................................10
6.2.3 MII Interface ..........................................10
6.2.4 RMII interface .......................................10
6.2.5 Illegal Frames ........................................11
6.3 EEPROM Interface .......................................11
6.4 Serial Management Interface MDC/MDIO ..12
6.5 Reversible PHYAD Order.............................13
6.6 Address Search and Learning .......................13
6.7 Address Hashing Mode.................................14
6.8 Address Direct Mapping Mode.....................14
6.9 Frame Filtering..............................................14
6.10 Back off Algorithm .................................... 15
6.11 Inter-Frame Gap ......................................... 15
6.12 Buffer Management.................................... 15
6.13 Buffer Manager .......................................... 15
6.14 Data Reception ........................................... 16
6.15 Data Forwarding......................................... 16
6.16 Flow Control .............................................. 17
6.17 Cut Through ............................................... 17
6.18 Broadcast Storm Filtering Control ............. 17
6.19 Loop Detection........................................... 18
6.20 Head-Of-Line Blocking.............................. 18
6.21 24LC02 Interface........................................ 18
6.22 24LC02 Device Operation ......................... 19
6.23 Testing ........................................................ 21
6.23.1 External SRAM Test ........................... 21
6.23.2 Production Testing .............................. 21
6.23.3 Loopback............................................. 21
7. 24LC02 Serial EEPROM Format ................... 22
8. Electrical Characteristics................................. 23
8.1 Temperature Limit Ratings........................... 23
8.2 DC Characteristics........................................ 23
8.3 AC Characteristics........................................ 23
8.3.1 Reset and Clock Timing........................ 23
8.3.2 RMII Timing ......................................... 24
8.3.3 PHY Management Timing .................... 25
8.3.4 Serial EEPROM 24LC02 Timing ......... 26
9. Mechanical Information................................... 27
2002/01/23
1
Rev. 2.0