DM9008F datasheet(19/68 Pages) ETC

19 / 68 page

DM9008

ISA/Plug & Play Super Ethernet Contoller

Final

Version :DM9008-DS-F02

June 14, 2000

Receive Configuration Register (RCR)

This register determines the operation of the NIC during reception of a packet, and is used to program what types of packets to accept.

5432

MON

PRO

ABP

ARP

SEP

Bit

Symbol

Description

SEP

Save Errored Packets

0: Packets with receive errors are rejected

1: Packets with receive errors are accepted. Receive errors are CRC and Frame

Alignment errors

ARP

Accept Runt Packets

0: Packets with fewer than 64 bytes rejected

1: Packets with fewer than 64 bytes accepted

ABP

Accept Broadcast

0: Packets with all 1's broadcast destination address rejected

1: Packets with all 1's broadcast destination address accepted

Accept Multicast

0: Packets with multicast destination address not checked

1: Packets with multicast destination address checked

PRO

Promiscuous Physical

0: Physical address of node must match the station address programmed in PARO-

PAR5 (physical address checked)

1: All packets with physical address accepted (physical address not checked)

MON

Monitor Mode: Enables the receiver to check addresses and CRC on incoming packets

without buffering to memory. The Missed Packet Tally counter will be incremented for each

recognized packet

0: Packets buffered to memory

1: Packets checked for address match, good CRC and Frame Alignment, but not buffered

to memory

Reserve: must be set to zero

Reserved

Note: D2 and D3 are "OR'd" together, i.e., if D2 and D3 are set, DM9008 will accept broadcast and multicast

addresses,

as well as its own physical address. To establish full promiscuous mode, bits D2, D3, and D4

should be set. In addition, the multicast hashing array must be set to all 1's to accept all multicast addresses

DM9008F Datasheet(PDF) 19 Page - List of Unclassifed Manufacturers

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