rflpc_eth_descriptor_t Struct Reference

This structure holds a descriptor which describes the fragment received or sent by the ethernet DMA. More...

#include <ethernet.h>

Data Fields
uint8_t *	packet
	pointer to buffer where the ethernet frame (or frame fragment) is stored
volatile uint32_t	control
	Control word where we find data buffer size and other information relative to reception/emission of the buffer. More...

Detailed Description

This structure holds a descriptor which describes the fragment received or sent by the ethernet DMA.

Definition at line 107 of file ethernet.h.

Field Documentation

volatile uint32_t rflpc_eth_descriptor_t::control

Control word where we find data buffer size and other information relative to reception/emission of the buffer.

Word format for reception:

• Bits 10:0 : Size of the buffer pointed by packet (-1 encoded)
• Bit 31 : IRQ on reception enabled/disabled

Word format for transmission:

• Bits 10:0 : Size of the buffer to transmit (-1 encoded)
• Bit 26 : Override. If true, bits 30:27 will override the default values in MAC registers. Otherwise, bits 29:27 will be ignored
• Bit 27 : Huge (jumbo) frame
• Bit 28 : Pad short frame to 64 bytes
• Bit 29 : Append CRC to the frame
• Bit 30 : Last fragment
• Bit 31 : IRQ on transmission enabled/disabled

Definition at line 126 of file ethernet.h.

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The documentation for this struct was generated from the following file:

• ethernet.h