STE100A View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

STE100A

PCI 10/100 Ethernet controller with integrated PHY (3.3V)

STMicroelectronics 

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STE10/100A

Functional description

3.3

3.3.1

Transmit scheme and transmit early interrupt

Transmit scheme

Figure 9. Transmit scheme

Initialize descriptor

Place data in host memory

Set own bit to 1

Write Tx demand poll command

Own = 0

Exit

STE10/100

checks descriptor

Own = 1

Transfer data to Tx FIFO

Deferring OR data less

than Tx threshold?

Back-off

Transmit data

across line

Collision

occured?

Write descriptor

Generate interrupt

PC00354

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