參數(shù)資料
型號: MB86965A
元件分類: 微控制器/微處理器
英文描述: 2 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP16
封裝: PLASTIC, QFP-160
文件頁數(shù): 22/76頁
文件大小: 394K
代理商: MB86965A
MB86965
29
Table 20. Reception Destination Address Filtering
Receiving From Other Nodes
AF1
AF0
LBC
FILTER
SELF RX
Node ID Match
*
Broadcast
Address
Multicast (bit 0=1) and
DLCR5
<1>
DLCR5
<0>
DLCR4
<1>
SELF RX
BMPR14
<0>
Yes
No
Address
Node ID
<23:1>
Hash Table
0
X
0
1
0
X
0
1
X
Accept
Accept
1
0
X
1
0
1
X
Accept
Accept
Accept
1
0
X
1
0
Accept
1
Accept
Receiving Own Transmission
AF1
AF0
LBC
FILTER
SELF RX
Node ID Match
*
Broadcast
Address
Multicast (bit 0=1) and
DLCR5
<1>
DLCR5
<0>
DLCR4
<1>
SELF RX
BMPR14
<0>
Yes
No
Address
Node ID
<23:1>
Hash Table
0
X
0
1
0
X
Accept
Accept
0
1
X
Accept
1
0
X
Accept
Accept
Accept
1
0
1
X
Accept
1
0
X
Accept
1
0
Accept
1
Note: A NODE ID match occurs when the incoming packet has a destination address whose first bit is a zero, and whose second through
forty-eighth bits match bits 1-47 respectively of EtherCoupler’s Node ID Registers.
As
shown in Table 20, packet destination address
filtering depends on the programming of Address Filter
bits AF1 and AF0, Loopback Control bit LBC, and
self-receive filter bit, Filter Self RX. Received packet
addresses can be filtered by Node ID, Broadcast,
Multicast plus bits 23 through 1 of Node ID, and/or
Multicast plus Hash Table. To be accepted, a packet must
not only pass requirements for the address filter but also
error filter requirements. [Also refer to Table 30 and the
discussion of Filter Self Receive Register BMPR14.]
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