UM0248 datasheet(10/26 Pages) STMICROELECTRONICS

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ENET firmware library

UM0248

10/26

2.2.1

ENET_Init

ENET_MACConfig structure

The ENET_MACConfig structure is defined in the 91x_enet.h file:

typedef struct

{

FunctionalState ReceiveALL;

u32 MIIPrescaler;

FunctionalState LoopbackMode;

u32 AddressFilteringMode;

u32 VLANFilterMode;

FunctionalState PassWrongFrame;

FunctionalState LateCollision;

FunctionalState BroadcastFrameReception;

FunctionalState PacketRetry;

FunctionalState RxFrameFiltering;

FunctionalState AutomaticPadRemoval;

FunctionalState DeferralCheck;

} ENET_MACConfig;

Function name

ENET_Init

Function prototype

void ENET_Init(ENET_MACConfig *MAC_Config)

Behavior description

Does the following initializations:

- ENET DMA initialization

- ENET MAC initialization (with MAC_Config structure values)

- MAC address initialization (the MAC address is defined in the

91x_enet.h file: “#define MAC_ADDRx YY”)

- Multicast address initialization (the multicast address is defined in the

91x_enet.h file: “#define MCAST_ADDRx YY”)

- intializes the Tx and the Rx descriptors

- initializes the PHY device

Input parameter

Pointer to structure of type ENET_MACCOnfig (see below)

Output parameter

None

Return parameter

None

Required preconditions

None

Called functions

ENET_MIIWriteReg

ENET_RxDscrInit

ENET_Tx_DscrInit

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