
Micrel, Inc.
KSZ8851-16MLLJ
March 2010
41
M9999-030210-1.0
Internal I/O Registers Space Mapping (Continued)
I/O Register Offset Location
16-Bit
8-Bit
Register
Name
Default
Value
Description
0x5A - 0x5B
0x5A
0x5B
WF2BM3
0x0000
Wakeup Frame 2 Byte Mask 3 Register [7:0]
Wakeup Frame 2 Byte Mask 3 Register [15:8]
0x5C - 0x5D
0x5C
0x5D
0x5E - 0x5F
0x5E
0x5F
Reserved
Don’t care
None
0x60 - 0x61
0x60
0x61
WF3CRC0
0x0000
Wakeup Frame 3 CRC0 Register [7:0]
Wakeup Frame 3 CRC0 Register [15:8]
0x62 - 0x63
0x62
0x63
WF3CRC1
0x0000
Wakeup Frame 3 CRC1 Register [7:0]
Wakeup Frame 3 CRC1 Register [15:8]
0x64 - 0x65
0x64
0x65
WF3BM0
0x0000
Wakeup Frame 3 Byte Mask 0 Register [7:0]
Wakeup Frame 3 Byte Mask 0 Register [15:8]
0x66 - 0x67
0x66
0x67
WF3BM1
0x0000
Wakeup Frame 3 Byte Mask 1 Register [7:0]
Wakeup Frame 3 Byte Mask 1 Register [15:8]
0x68 - 0x69
0x68
0x69
WF3BM2
0x0000
Wakeup Frame 3 Byte Mask 2 Register [7:0]
Wakeup Frame 3 Byte Mask 2 Register [15:8]
0x6A - 0x6B
0x6A
0x6B
WF3BM3
0x0000
Wakeup Frame 3 Byte Mask 3 Register [7:0]
Wakeup Frame 3 Byte Mask 3 Register [15:8]
0x6C - 0x6D
0x6C
0x6D
0x6E - 0x6F
0x6E
0x6F
Reserved
Don’t care
None
0x70 - 0x71
0x70
0x71
TXCR
0x0000
Transmit Control Register [7:0]
Transmit Control Register [15:8]
0x72 - 0x73
0x72
0x73
TXSR
0x0000
Transmit Status Register [7:0]
Transmit Status Register [15:8]
0x74 - 0x75
0x74
0x75
RXCR1
0x0800
Receive Control Register 1 [7:0]
Receive Control Register 1 [15:8]
0x76 - 0x77
0x76
0x77
RXCR2
0x0004
Receive Control Register 2 [7:0]
Receive Control Register 2 [15:8]
0x78 - 0x79
0x78
0x79
TXMIR
0x0000
TXQ Memory Information Register [7:0]
TXQ Memory Information Register [15:8]
0x7A - 0x7B
0x7A
0x7B
Reserved
Don’t care
None
0x7C - 0x7D
0x7C
0x7D
RXFHSR
0x0000
Receive Frame Header Status Register [7:0]
Receive Frame Header Status Register [15:8]
0x7E - 0x7F
0x7E
0x7F
RXFHBCR
0x0000
Receive Frame Header Byte Count Register [7:0]
Receive Frame Header Byte Count Register [15:8]
0x80 - 0x81
0x80
0x81
TXQCR
0x0000
TXQ Command Register [7:0]
TXQ Command Register [15:8]
0x82 - 0x83
0x82
0x83
RXQCR
0x0000
RXQ Command Register [7:0]
RXQ Command Register [15:8]
0x84 - 0x85
0x84
0x85
TXFDPR
0x0000
TX Frame Data Pointer Register [7:0]
TX Frame Data Pointer Register [15:8]