BCM5722 Programmer’s Guide
10/15/07
Data SDI.........................................................................................................................................21
Method 1 ................................................................................................................................21
Method 2 ................................................................................................................................21
Method Selection....................................................................................................................21
RXMAC Time-sync.................................................................................................................21
Data/ISO Mixed Transmit Packet Traffic Example.........................................................................22
DMA Read....................................................................................................................................................25
Read Engine..........................................................................................................................................25
Read FIFO.............................................................................................................................................25
Buffer Manager......................................................................................................................................25
DMA Write....................................................................................................................................................26
Write Engine..........................................................................................................................................26
Write FIFO.............................................................................................................................................26
Buffer Manager......................................................................................................................................26
System Management Bus ..........................................................................................................................27
Overview................................................................................................................................................28
Timers....................................................................................................................................................28
SMBus Interface....................................................................................................................................28
SMBus Connector ..........................................................................................................................29
SMBus Data Link............................................................................................................................29
SMBus Clock..................................................................................................................................31
Events....................................................................................................................................................31
Other ASF Actions.................................................................................................................................32
LED Control.................................................................................................................................................32
Memory Arbiter ...........................................................................................................................................32
Host Coalescing..........................................................................................................................................33
Host Coalescing Engine ........................................................................................................................33
MSI FIFO...............................................................................................................................................34
Status Block...........................................................................................................................................34
10BT/100BTx/1000BASE-T Transceiver....................................................................................................35
Auto-Negotiation....................................................................................................................................35
Automatic MDI Crossover......................................................................................................................35
Wire Speed............................................................................................................................................35
PHY Control.................................................................................................................................................36
MII Block................................................................................................................................................36
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