Maxim Integrated 78Q8430 Software Driver - Manual (Page 3)

UG_8430_004 78Q8430 Software Driver Development Guidelines
Rev. 1.0 3
Table of Contents
1 Introduction ......................................................................................................................................... 4
2 List of Features ................................................................................................................................... 6
3 MAC Operations .................................................................................................................................. 8
3.1 Basic Transmit .............................................................................................................................. 8
3.2 Basic Receive ............................................................................................................................... 9
3.2.1 Hardware Jabber Protection.............................................................................................. 9
3.3 Transmit PAUSE......................................................................................................................... 10
3.3.1 Specify PAUSE Frame .................................................................................................... 10
3.3.2 Specify PAUSE Time ...................................................................................................... 10
3.3.3 PAUSE Transmit Immediately......................................................................................... 11
3.4 Local PAUSE .............................................................................................................................. 11
3.4.1 Disable Local PAUSE...................................................................................................... 11
3.4.2 Enable Local PAUSE ...................................................................................................... 11
3.4.3 Start Local PAUSE Timer ................................................................................................ 12
3.5 HNR Frame Transmission .......................................................................................................... 12
3.5.1 Specify HNR Frame ........................................................................................................ 12
3.5.2 HNR Automatic Transmission ......................................................................................... 12
3.5.3 HNR Transmit Immediately ............................................................................................. 13
3.6 Receive Interrupt Delay Timer .................................................................................................... 13
3.7 Host Drop.................................................................................................................................... 13
3.8 Append CRC............................................................................................................................... 14
3.9 Add Padding ............................................................................................................................... 15
3.10 Strip CRC.................................................................................................................................... 15
3.11 Strip Padding .............................................................................................................................. 15
4 Packet Classification ........................................................................................................................ 16
4.1 CAM Configuration...................................................................................................................... 16
4.2 Address Recognition (ARC)........................................................................................................ 16
4.2.1 Wildcard Address Filters ................................................................................................. 16
4.2.2 Promiscuous Mode Off.................................................................................................... 17
4.2.3 Promiscuous Mode On.................................................................................................... 17
4.2.4 Unicast Address Filters ................................................................................................... 17
4.2.5 Multicast Address Filters ................................................................................................. 19
4.2.6 Negative Address Filters ................................................................................................. 21
4.3 OnNow Packet Recognition........................................................................................................ 21
4.3.1 Enable OnNow ................................................................................................................ 21
4.3.2 Disable OnNow................................................................................................................ 21
4.3.3 Set the OnNow Pattern ................................................................................................... 21
4.4 Magic Packet Recognition .......................................................................................................... 22
4.4.1 Enable Magic Packet....................................................................................................... 23
4.4.2 Disable Magic Packet ...................................................................................................... 23
4.4.3 Set Magic Packet MAC Address ..................................................................................... 23
4.5 Classification Interrupts .............................................................................................................. 24
5 Media Controller Offload Features .................................................................................................. 25
5.1 DMA ............................................................................................................................................ 25
5.1.1 Slave DMA Read Mode................................................................................................... 25
5.1.2 Slave DMA Write Mode ................................................................................................... 25
5.2 Jumbo Frames ............................................................................................................................ 26
5.2.1 Receive Jumbo................................................................................................................ 26
5.2.2 Transmit Jumbo............................................................................................................... 27
5.3 Watermarking.............................................................................................................................. 28
5.3.1 Headroom Watermark ..................................................................................................... 28
5.3.2 PAUSE Watermark Level ................................................................................................ 28
5.3.3 Watermark Interrupt ........................................................................................................ 29