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Micrel, Inc.
KSZ8873MLLJ
September 2011
5
M9999-091911-1.8
IGMP Snooping ......................................................................................................................................................... 35
IGMP Send Back to the Subscribed Port .................................................................................................................. 35
Port Mirroring Support ...................................................................................................................................................... 35
Rate Limiting Support ....................................................................................................................................................... 36
Unicast MAC Address Filtering......................................................................................................................................... 36
Configuration Interface ..................................................................................................................................................... 36
I
2C Master Serial Bus Configuration.......................................................................................................................... 36
I2C Slave Serial Bus Configuration ........................................................................................................................... 37
SPI Slave Serial Bus Configuration ........................................................................................................................... 38
Loopback Support............................................................................................................................................................. 41
Far-end Loopback...................................................................................................................................................... 41
Near-end (Remote) Loopback ................................................................................................................................... 42
MII Management (MIIM) Registers ..................................................................................................................................... 43
PHY1 Register 0 (PHYAD = 0x1, REGAD = 0x0): MII Basic Control........................................................................ 44
PHY2 Register 0 (PHYAD = 0x2, REGAD = 0x0): MII Basic Control........................................................................ 44
PHY1 Register 1 (PHYAD = 0x1, REGAD = 0x1): MII Basic Status ......................................................................... 45
PHY2 Register 1 (PHYAD = 0x2, REGAD = 0x1): MII Basic Status ......................................................................... 45
PHY1 Register 2 (PHYAD = 0x1, REGAD = 0x2): PHYID High................................................................................ 45
PHY2 Register 2 (PHYAD = 0x2, REGAD = 0x2): PHYID High................................................................................ 45
PHY1 Register 3 (PHYAD = 0x1, REGAD = 0x3): PHYID Low................................................................................. 45
PHY2 Register 3 (PHYAD = 0x2, REGAD = 0x3): PHYID Low................................................................................. 45
PHY1 Register 4 (PHYAD = 0x1, REGAD = 0x4): Auto-Negotiation Advertisement Ability ..................................... 46
PHY2 Register 4 (PHYAD = 0x2, REGAD = 0x4): Auto-Negotiation Advertisement Ability ..................................... 46
PHY1 Register 5 (PHYAD = 0x1, REGAD = 0x5): Auto-Negotiation Link Partner Ability ......................................... 46
PHY2 Register 5 (PHYAD = 0x2, REGAD = 0x5): Auto-Negotiation Link Partner Ability ......................................... 46
PHY1 Register 29 (PHYAD = 0x1, REGAD = 0x1D): Not supported ........................................................................ 47
PHY2 Register 29 (PHYAD = 0x2, REGAD = 0x1D): LinkMD Control/Status .......................................................... 47
PHY1 Register 31 (PHYAD = 0x1, REGAD = 0x1F): PHY Special Control/Status................................................... 47
PHY2 Register 31 (PHYAD = 0x2, REGAD = 0x1F): PHY Special Control/Status................................................... 47
Memory Map (8-bit Registers)............................................................................................................................................ 48
Global Registers ............................................................................................................................................................... 48
Port Registers ................................................................................................................................................................... 48
Advanced Control Registers ............................................................................................................................................. 48
Register Description ........................................................................................................................................................... 49
Global Registers (Registers 0 – 15) ................................................................................................................................. 49
Register 0 (0x00): Chip ID0 ....................................................................................................................................... 49
Register 1 (0x01): Chip ID1 / Start Switch................................................................................................................. 49
Register 3 (0x03): Global Control 1 ........................................................................................................................... 50
Register 4 (0x04): Global Control 2 ........................................................................................................................... 50
Register 5 (0x05): Global Control 3 ........................................................................................................................... 51
Register 6 (0x06): Global Control 4 ........................................................................................................................... 52
Register 7 (0x07): Global Control 5 ........................................................................................................................... 52
Register 8 (0x08): Global Control 6 ........................................................................................................................... 53
Register 9 (0x09): Global Control 7 ........................................................................................................................... 53
Register 10 (0x0A): Global Control 8......................................................................................................................... 53
Register 11 (0x0B): Global Control 9......................................................................................................................... 53
Register 12 (0x0C): Global Control 10 ...................................................................................................................... 53
Register 13 (0x0D): Global Control 11 ...................................................................................................................... 54
Register 14 (0x0E): Global Control 12....................................................................................................................... 54
Register 15 (0x0F): Global Control 13....................................................................................................................... 54
Port Registers (Registers 16 – 95) ................................................................................................................................... 55
Register 16 (0x10): Port 1 Control 0.......................................................................................................................... 55
Register 32 (0x20): Port 2 Control 0.......................................................................................................................... 55
Register 48 (0x30): Port 3 Control 0.......................................................................................................................... 55
Register 17 (0x11): Port 1 Control 1.......................................................................................................................... 56
Register 33 (0x21): Port 2 Control 1.......................................................................................................................... 56
Register 49 (0x31): Port 3 Control 1.......................................................................................................................... 56