參數(shù)資料
型號: MC68302FC16CR2
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP132
封裝: 0.950 X 0.950 INCH, 0.025 INCH PITCH, PLASTIC, QFP-132
文件頁數(shù): 90/128頁
文件大?。?/td> 641K
代理商: MC68302FC16CR2
ETHERNET Controller
MOTOROLA
MC68EN302 REFERENCE MANUAL
4-25
Figure 4-4. Ethernet Address Recognition Flowchart
4.6.2 WRITING ADDRESSES INTO TABLES
The address recognition block is written/read just like a normal memory cycle (word or byte).
Unused locations do not return DTACK if accessed.
CHECK
ADDRESS
BROADCAST
ADDR?
YES
MULT[0] = 0?
YES
RECEIVE FRAME
REASON = 01
ARINDEX = 111111
PROM = 1?
NO
DISCARD FRAME
NO
PERFECT
MATCH?
NO
YES
RECEIVE FRAME
REASON = 11
ARINDEX = HASH
YES
NO
HASH
MATCH?
RECEIVE FRAME
REASON = 10
ARINDEX =
MATCHING
LINE NUMBER
INDEX
MULTICAST
ADDR?
NO
YES
MULT[10] = 10?
YES
RECEIVE FRAME
REASON = 01
ARINDEX = 000000
PA_REJT = 1?
YES
NO
YES
RECEIVE FRAME
REASON = 00
ARINDEX = HASH
INDEX
NO
RECEIVE FRAME
REASON = 00
ARINDEX = HASH
INDEX
SET MISS BIT
MULTICAST
ADDR &
MULT[10] = 11?
NO
YES
PHYSICAL
ADDR &
PA_REJT = 1?
YES
NO
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