General Description

Some Ethernet Header types (see IEEE 802.3 for full list)

Ethernet Header field sizes.

Macros
#define	CYHAL_ETHER_TYPE_MIN 0x0600
	Ethernet header type less than MIN is a length.

#define	CYHAL_ETHER_TYPE_IP 0x0800
	Ethernet header type IPv4.

#define	CYHAL_ETHER_TYPE_ARP 0x0806
	Ethernet header type ARP.

#define	CYHAL_ETHER_PREAMBLE_LEN (8)
	First part of ethernet frame header, all b10101010 (0xAA) + SFD (0xAB)

#define	CYHAL_ETHER_ADDR_LEN (6)
	The number of bytes (octets) in an ethernet (MAC) address.

#define	CYHAL_ETHER_TYPE_LEN (2)
	The number of bytes in the type field.

#define	CYHAL_ETHER_CRC_LEN (4)
	The number of bytes in the trailing CRC field.

#define	CYHAL_ETHER_HDR_LEN (CYHAL_ETHER_PREAMBLE_LEN + (CYHAL_ETHER_ADDR_LEN * 2) + CYHAL_ETHER_TYPE_LEN)
	The length of the combined header.

#define	CYHAL_ETHER_MIN_LEN (64)
	The minimum packet length.

#define	CYHAL_ETHER_MIN_DATA (46)
	The minimum packet user data length.

#define	CYHAL_ETHER_MAX_LEN (1518)
	The maximum packet length.

#define	CYHAL_ETHER_MAX_DATA (1500)
	The maximum packet user data length.

Macros