802.3 64 . 64 . , . AR RCR .
, - . SEP RCR , .
, . , . NIC , .
(FIFO) DMA , 10 .
DMA .
FIFO , , .
:
PSTART (page start, PSTART)
PSTOP (page stop, PSTOP) ;
CURR (current page, CURR) , ;
BNRY (boundary pointer, BNRY) , . , . .
256- , , 256 . 256 , .. , , 64- . , , 8 , , , 256 .
, (CURR) + . (FIFO) DMA , (threshold). 256- . , RCR , , 4- .
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(FAE, CRC), (CURR) , . SEP RCR .
DMA (boundary pointer), . , . OVW .
ARP
IP- Ethernet- . IP- Ethernet ARP (Address Resolution Protocol - ). IP-, IP Ethernet.
ARP-
. , ARP-, . IP- Ethernet-. IP- Ethernet-, IP-. ARP-.
IP- | Ethernet- |
223.1.2.1 223.1.2.3 223.1.2.4 | 08:00:39:00:2F:C3 08:00:5A:21:A7:22 08:00:10:99:AC:54 |
.1. ARP-
ARP- , IP- Ethernet- , - . IP- internet. internet, IP- . Ethernet- . , Ethernet-.