WG82577LM S LGWS Intel, WG82577LM S LGWS Datasheet - Page 158

• Manufacturer Part Number: WG82577LM S LGWS
• Manufacturer: Intel

Specifications of WG82577LM S LGWS

• Lead Free Status / RoHS Status: Supplier Unconfirmed

10.2.1.3.18 Receive Filter Control Register - RFCTL (0x05008; RW)
10.2.1.3.19 Multicast Table Array - MTA[31:0] (0x05200-0x0527C; RW)
Note:
151
There is one register per 32 bits of the Multicast Address Table for a total of 32
registers (thus the MTA[31:0] designation). The size of the word array depends on the
number of bits implemented in the multicast address table. Software must mask to the
desired bit on reads and supply a 32-bit word on writes.
All accesses to this table must be 32-bit.
Figure 19
represents the internally stored ordering of the received DA. Note that Byte 1 bit 0
indicated in this diagram is the first on the wire. The bits that are directed to the
multicast table array in this diagram match a Multicast offset in the CTRL equals 00b.
The complete multicast offset options are:
0
5:1
6
7
9:8
10
11
12
13
14
15
17:16
31:18
31:0
Bits
Bits
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RO
RW
Type
Type
shows the multicast lookup algorithm. The destination address shown
0b
0x0
0b
0b
00b
0b
0b
0b
0b
0b
0b
0x0
0x0
X
Reset
Reset
82577 GbE PHY—Intel
iSCSI Disable (ISCSI_DIS). Disable the iSCSI filtering for header split
functionality.
iSCSI DWord Count (ISCSI_DWC). This field indicated the Dword count of the
iSCSI header, which is used for packet split mechanism.
NFS Write Disable (NFSW_DIS). Disable filtering of NFS write request headers for
header split functionality.
NFS Read Disable (NFSR_DIS). Disable filtering of NFS read reply headers for
header split functionality.
NFS Version (NFS_VER).
00b = NFS version 2.
01b = NFS version 3.
10b = NFS version 4.
11b = Reserved for future use.
Reserved.
Reserved.
ACK Accelerate Disable (ACKDIS). When this bit is set the MAC does not
accelerate interrupt on TCP ACK packets.
ACK data Disable (ACKD_DIS).
1b = MAC recognizes ACK packets according to the ACK bit in the TCP header +
No –CP data
0b = MAC recognizes ACK packets according to the ACK bit only.
This bit is relevant only if the ACKDIS bit is not set.
IP Fragment Split Disable (IPFRSP_DIS). When this bit is set the header of IP
fragmented packets are not set.
Extended Status Enable (EXSTEN). When the EXSTEN bit is set or when the
packet split receive descriptor is used, the MAC writes the extended status to the
Rx descriptor.
Reserved.
Reserved. Should be written with 0b to ensure future compatibility.
Bit Vector. Word wide bit vector specifying 32 bits in the multicast address filter
table.
®
5 Series Express Chipset MAC Programming Interface
Description
Description