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Software Developer’s Manual 113
EEPROM Interface
5.6.24 Management Control (Word 13h
1
, 23h
2
)
The following table lists the initial settings for the Management Control Register as well as valid
bits for the IPv4 Address and the IPv6 Address.
1. Applicable to the 82546GB/EB only.
2. Not applicable to the 82544GC/EI or 82541ER.
Table 5-10. Initial Management Control Register Settings
Bit Name Description
15
Enable ARP Response
Filtering
This bit controls the initial value of the MANC.RSP_EN bit.
0b: ARP response packets are delivered to host memory.
1b: ARP response packets are delivered to the Ethernet controller
for automatic ARP reply or forwarded to the BMC.
14 Reserved Reserved. Set this bit to 0b.
13 Enable ARP Request Filtering
This bit controls the initial value of the MANC.ARP_EN bit.
0b: ARP request packets are delivered to host memory.
1b: ARP request packets are delivered to the Ethernet controller for
automatic ARP reply or forwarded to the BMC.
12:10 Reserved Set these bits to 0b.
9 Enable RMCP 0298h Filtering
This bit is controlled by the ASF agent. Manually set this bit for
TCO mode.
Set this bit to 0b (default) to control the initial value of the
MANC.0298_EN bit, which enables classifying UDP packets of port
0298h as Management Packets for delivery to the SMBus or ASF
controller.
Set this bit to 0b if the SMBus is disabled.
8 Enable RMCP 026F Filtering
This bit is controlled by the ASF agent. Manually set this bit for
TCO mode.
Set this bit to 1b (default) to control the initial value of the
MANC.0298_EN bit, which enables classifying UDP packets of port
026Fh as Management Packets for delivery to the SMBus or ASF
controller.
Set this bit to 0b if the SMBus is disabled.
7 IPv6 Address Valid
IPv6 Address in the IP Address EEPROM register is valid. This is
written to bit 16 of the IP Address Valid (IPAV[16]) register.
6 IPv4 Address Valid
IPv4 Address in the IP Address EEPROM register is valid. This is
written to bit 0b of the IP Address Valid (IPAV[0]) register.
5 Flex Filter Enable
82541PI/GI/EI and 82547GI/EI Only.
This bit enables the flexible filter loaded from the EEPROM.
0b = Disable flex filter.
1b = Enable flex filter.
Note: Reserved bit for all other Ethernet controllers (set to 0b).
4:3 Reserved Set these bits to 0b.