參數(shù)資料
型號(hào): LAN91C100-FD-SS
廠商: STANDARD MICROSYSTEMS CORP
元件分類: 微控制器/微處理器
英文描述: FEAST Fast Ethernet Controller with Full Duplex Capability
中文描述: 2 CHANNEL(S), 100M bps, LOCAL AREA NETWORK CONTROLLER, PQFP208
封裝: GREEN, QFP-208
文件頁數(shù): 59/67頁
文件大小: 369K
代理商: LAN91C100-FD-SS
SMSC DS – LAN91C100FD REV. B
Page 59
Rev. 01-20-06
TIMING DIAGRAMS
FIGURE 16 - ASYNCHRONOUS CYCLE - nADS=0
PARAMETER
A1-A15, AEN, nBE0-nBE3 Valid and nADS Low Setup to
nRD, nWR Active
A1-A15, AEN, nBE0-nBE3 Hold After nRD, nWR Inactive
(Assuming nADS Tied Low)
nRD Low to Valid Data
nRD High to Data Floating
Data Setup to nWR Inactive
Data Hold After nWR Inactive
MIN
25
TYP
MAX
UNITS
ns
t1
t2
20
ns
t3
t4
t5
t5A
40
30
ns
ns
ns
ns
30
5
FIGURE 17 - ASYNCHRONOUS CYCLE - USING nADS
PARAMETER
MIN
25
TYP
MAX
UNITS
ns
t1
A1-A15, AEN, nBE0-nBE3 Valid and nADS Low Setup to nRD,
nWR Active
nRD Low to Valid Data
nRD High to Data Floating
Data Setup to nWR Inactive
Data Hold After nWR Inactive
A1-A15, AEN, nBE0-nBE3 Setup to nADS Rising
A1-A15, AEN, nBE0-nBE3 Hold after nADS Rising
t3
t4
t5
t5A
t8
t9
40
30
ns
ns
ns
ns
ns
ns
30
5
10
15
t5
t2
t3
t4
t1
t5A
A1-15, AEN, nBE0-nBE3 valid
D0-D31 valid
ADDRESS
nADS
READ DATA
nRD,nWR
WRITE DATA
t8
t9
t5
t3
t4
t1
t5A
A1-A15, AEN, nBE0-nBE3
valid
D0-D31 valid
ADDRESS
nADS
READ DATA
nRD, nWR
WRITE DATA
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