Intel PCI Packets Received 1024 to Max Bytes Count, Good Packets Received Count, PRC1522 04070h R

			Register Descriptions
Table 13-117. PRC1023 Register Bit Description
31			0
			PRC1023
Field	Bit(s)	Initial	Description
		Value
PRC1023	31:0	0b	Number of packets received that are 512-1023 bytes in length.

13.7.26Packets Received (1024 to Max Bytes) Count

PRC1522 (04070h; R)

This register counts the number of good packets received that are from 1024 bytes to the maximum (from <Destination Address> through <CRC>, inclusively) in length. The maximum is dependent on the current receiver configuration and the type of packet being received. If a packet is counted in Receive Oversized Count, it is not counted in this register (see Section 13.7.36). This register does not include received flow control packets and only increments if the packet has passed address filtering and receives are enabled.

Due to changes in the standard for maximum frame size for VLAN tagged frames in IEEE Standard 802.3, these Ethernet controllers accept packets which have a maximum length of 1522 bytes. The RMON statistics associated with this range has been extended to count 1522-byte long packets.

Table 13-118. PRC1522 Register Bit Description

31			0
			PRC1522
Field	Bit(s)	Initial	Description
		Value
PRC1522	31:0	0b	Number of packets received that are 1024-Max bytes in length.

13.7.27Good Packets Received Count

GPRC (04074h; R)

This register counts the number of good packets received of any legal length. The legal length for the received packet is defined by the value of LongPacketEnable (CTRL.LPE) (see Section 13.7.15). This register does not include received flow control packets and only counts packets that pass filtering. This register only increments if receives are enabled. This register does not count packets counted by the Missed Packet Count (MPC) register.

Software Developer’s Manual 349