Micrel, Inc.
KSZ8851-16MLL/MLLI
March 11, 2014
6
Revision 2.2
Chip Global Control Register (0xC6 – 0xC7): CGCR................................................................................................... 59
Indirect Access Control Register (0xC8 – 0xC9): IACR ............................................................................................... 60
0xCA – 0xCF: Reserved ............................................................................................................................................... 60
Indirect Access Data Low Register (0xD0 – 0xD1): IADLR ......................................................................................... 60
Indirect Access Data High Register (0xD2 – 0xD3): IADHR ........................................................................................ 60
Power Management Event Control Register (0xD4 – 0xD5): PMECR......................................................................... 61
Go-Sleep and Wake-Up Time Register (0xD6 – 0xD7): GSWUTR ............................................................................. 62
PHY Reset Register (0xD8 – 0xD9): PHYRR .............................................................................................................. 62
0xDA – 0xDF: Reserved ............................................................................................................................................... 62
0xE0 – 0xE3: Reserved ................................................................................................................................................ 62
PHY 1 MII-Register Basic Control Register (0xE4 – 0xE5): P1MBCR......................................................................... 63
PHY 1 MII-Register Basic Status Register (0xE6 – 0xE7): P1MBSR .......................................................................... 64
PHY 1 PHY ID Low Register (0xE8 – 0xE9): PHY1ILR ............................................................................................... 64
PHY 1 PHY ID High Register (0xEA – 0xEB): PHY1IHR ............................................................................................. 64
PHY 1 Auto-Negotiation Advertisement Register (0xEC – 0xED): P1ANAR ............................................................... 65
PHY 1 Auto-Negotiation Link Partner Ability Register (0xEE – 0xEF): P1ANLPR....................................................... 66
0xF0 – 0xF3: Reserved ................................................................................................................................................ 66
Port 1 PHY Special Control/Status, LinkMD (0xF4 – 0xF5): P1SCLMD ...................................................................... 66
Port 1 Control Register (0xF6 – 0xF7): P1CR.............................................................................................................. 67
Port 1 Status Register (0xF8 – 0xF9): P1SR ............................................................................................................... 68
0xFA – 0xFF: Reserved................................................................................................................................................ 69
MIB (Management Information Base) Counters ................................................................................................................... 70
Absolute Maximum Ratings .................................................................................................................................................. 73
Operating Ratings ................................................................................................................................................................. 73
Electrical Characteristics....................................................................................................................................................... 73
Timing Specifications ............................................................................................................................................................ 75
Asynchronous Read and Write Timing (Processor read and write) ............................................................................. 75
Selection of Isolation Transformers....................................................................................................................................... 80
Selection of Reference Crystal.............................................................................................................................................. 80
Package Information ............................................................................................................................................................. 81
Acronyms and Glossary ........................................................................................................................................................ 82