Ethernet Media Access Controller (EMAC)/ Management Data Input/Output (MDIO) Module User's Guide

List of Figures
1 EMAC and MDIO Block Diagram ........................................................................................ 13
2 Ethernet Configuration—MII Connections .............................................................................. 15
3 Ethernet Configuration—GMII Connections ............................................................................ 17
4 Ethernet Frame Format .................................................................................................... 19
5 Basic Descriptor Format ................................................................................................... 20
6 Typical Descriptor Linked List ............................................................................................ 21
7 Transmit Buffer Descriptor Format ....................................................................................... 24
8 Receive Buffer Descriptor Format ........................................................................................ 27
9 EMAC Control Module Block Diagram .................................................................................. 31
10 MDIO Module Block Diagram ............................................................................................. 34
11 EMAC Module Block Diagram ............................................................................................ 38
12 EMAC Control Module Interrupt Logic Diagram ........................................................................ 56
13 EMAC Control Module Identification and Version Register (CMIDVER) ............................................ 61
14 EMAC Control Module Software Reset Register (CMSOFTRESET) ................................................ 62
15 EMAC Control Module Emulation Control Register (CMEMCONTROL) ............................................ 62
16 EMAC Control Module Interrupt Control Register (CMINTCTRL) ................................................... 63
17 EMAC Control Module Receive Threshold Interrupt Enable Register (CMRXTHRESHINTEN) ................. 64
18 EMAC Control Module Receive Interrupt Enable Register (CMRXINTEN) ......................................... 64
19 EMAC Control Module Transmit Interrupt Enable Register (CMTXINTEN) ........................................ 65
20 EMAC Control Module Miscellaneous Interrupt Enable Register (CMMISCINTEN) .............................. 66
21 EMAC Control Module Receive Threshold Interrupt Status Register (CMRXTHRESHINTSTAT) .............. 67
22 EMAC Control Module Receive Interrupt Status Register (CMRXINTSTAT) ...................................... 67
23 EMAC Control Module Transmit Interrupt Status Register (CMTXINTSTAT) ...................................... 68
24 EMAC Control Module Miscellaneous Interrupt Status Register (CMMISCINTSTAT) ............................ 69
25 EMAC Control Module Receive Interrupts per Millisecond Register (CMRXINTMAX) ............................ 70
26 EMAC Control Module Transmit Interrupts per Millisecond Register (CMTXINTMAX) ........................... 70
27 MDIO Version Register (VERSION) ..................................................................................... 71
28 MDIO Control Register (CONTROL) ..................................................................................... 72
29 PHY Acknowledge Status Register (ALIVE) ............................................................................ 73
30 PHY Link Status Register (LINK) ......................................................................................... 73
31 MDIO Link Status Change Interrupt (Unmasked) Register (LINKINTRAW) ........................................ 74
32 MDIO Link Status Change Interrupt (Masked) Register (LINKINTMASKED) ...................................... 75
33 MDIO User Command Complete Interrupt (Unmasked) Register (USERINTRAW) ............................... 76
34 MDIO User Command Complete Interrupt (Masked) Register (USERINTMASKED) ............................. 77
35 MDIO User Command Complete Interrupt Mask Set Register (USERINTMASKSET) ........................... 78
36 MDIO User Command Complete Interrupt Mask Clear Register (USERINTMASKCLEAR) ..................... 79
37 MDIO User Access Register 0 (USERACCESS0) ..................................................................... 80
38 MDIO User PHY Select Register 0 (USERPHYSEL0) ................................................................ 81
39 MDIO User Access Register 1 (USERACCESS1) ..................................................................... 82
40 MDIO User PHY Select Register 1 (USERPHYSEL1) ................................................................ 83
41 Transmit Identification and Version Register (TXIDVER) ............................................................. 87
42 Transmit Control Register (TXCONTROL) .............................................................................. 87
43 Transmit Teardown Register (TXTEARDOWN) ........................................................................ 88
44 Receive Identification and Version Register (RXIDVER) ............................................................. 89
45 Receive Control Register (RXCONTROL) .............................................................................. 89
46 Receive Teardown Register (RXTEARDOWN) ........................................................................ 90
47 Transmit Interrupt Status (Unmasked) Register (TXINTSTATRAW) ................................................ 91
48 Transmit Interrupt Status (Masked) Register (TXINTSTATMASKED) .............................................. 92
49 Transmit Interrupt Mask Set Register (TXINTMASKSET) ............................................................ 93
50 Transmit Interrupt Mask Clear Register (TXINTMASKCLEAR) ...................................................... 94
51 MAC Input Vector Register (MACINVECTOR) ......................................................................... 95
52 MAC End Of Interrupt Vector Register (MACEOIVECTOR) .......................................................... 95
6 List of Figures SPRUEQ6 – December 2007
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