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(yè)數(shù): 49/67頁(yè)
文件大?。?/td> 369K
代理商: LAN91C100-FD-SS
SMSC DS – LAN91C100FD REV. B
Page 49
Rev. 01-20-06
Table 3 - VL Local Bus Signal Connections
VL BUS
SIGNAL
LAN91C100
SIGNAL
NOTES
created typically by using nADS delayed by one LCLK.
IRQn
INTR0-INTR3
Typically uses the interrupt lines on the ISA edge connector of VL
bus
D0-D31
D0-D31
32 bit data bus. The bus byte(s) used to access the device are a
function of nBE0-nBE3:
nBE0 nBE1
nBE2 nBE3
0 0 0 0 Double word access
0
0
1
1 Low word access
1 1
0
0 High word access
0 1
1
1 Byte 0 access
1 0
1
1 Byte 1 access
1 1
0
1 Byte 2 access
1 1
1
0 Byte 3 access
Not used = tri-state on reads, ignored on writes. Note that nBE2
and nBE3 override the value of A1, which is tied low in this
application.
nLDEV
nLDEV
nLDEV is a totem pole output. nLDEV is active on valid decodes of
A15-A4 and AEN=0.
UNUSED PINS
VCC
nRD nWR
GND
A1 nVLBUS
OPEN
nDATACS
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