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UM0248: DescriptionThis user manual describes the driver functions developed; File Size400KB，26 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/

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UM0248 Overview

This user manual describes the driver functions developed

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UM0248

User manual

STR91xFA MAC/DMA controller (ENET) firmware library

Introduction

This user manual describes the driver functions developed for the STR91xFA MAC/DMA

controller (ENET).

The document also provides an example of using the driver with the uIP free TCP/IP stack

showing a webserver application.

Notes:

■

For details on the STR91xFA MAC/DMA controller hardware, please refer to the

STR91xFA reference manual (RM0006).

Details about the uIP stack are available at: www.sics.se/~adam/uip/

February 2008

Rev 2

1/26

www.st.com

Contents

UM0248

Contents

ENET overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1

1.2

ENET block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

ENET registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

ENET firmware library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1

Package description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1.1

2.1.2

2.1.3

ENET FWlib folder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

FWlib folder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

DEMOS folder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2

ENET driver functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2.1

2.2.2

2.2.3

2.2.4

2.2.5

2.2.6

2.2.7

2.2.8

2.2.9

2.2.10

2.2.11

2.2.12

2.2.13

2.2.14

2.2.15

2.2.16

2.2.17

2.2.18

2.2.19

2.2.20

2.2.21

2.2.22

ENET_Init . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

ENET_SetOperatingMode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

ENET_MIIWriteReg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

ENET_MIIReadReg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

ENET_RxDscrInit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

ENET_TxDscrInit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

ENET_Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

ENET_GetRxStatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

ENET_GetTxStatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

ENET_UpdateRxDscr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

ENET_HandleRxPkt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

ENET_UpdateTxDescr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

ENET_HandleTxPkt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

ENET_ITConfig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

ENET_GetItSrc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

ENET_ClearIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

ENET_PHYITConfig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

ENET_PHYGetITSrc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

ENET_PHYIsolate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

ENET_PHYPowerdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

ENET_PHYLoopBack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

ENET_PHYReset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Webserver demo with uIP TCP/IP stack . . . . . . . . . . . . . . . . . . . . . . . . 22

2/26

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