82583V Datasheet, PDF (55/374 Pages) Intel Corporation – Intel® 82583V GbE Controller

Initialization—82583V GbE Controller
Note:
Note:
Do the following for the transmit queue:
• Allocate a region of memory for the transmit descriptor list.
• Program the descriptor base address with the address of the region.
• Set the length register to the size of the descriptor ring.
• If needed, program the head and tail registers.
The head and tail pointers are initialized (by hardware) to zero after a power-on or a
software-initiated device reset.
Program the TIPG register with the following (decimal) values to get the minimum legal
IPG:
• IPGT = 8
• IPGR1 = 2
• IPGR2 = 10
IPGR1 and IPGR2 are not needed in full-duplex, but it is easier to always program them
to the values listed.
Initialize the transmit descriptor registers (TDBAL, TDBAH, TDL, TDH, and TDT).
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