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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LAN91C100FDREVB датащи(PDF) 49 Page - SMSC Corporation |
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LAN91C100FDREVB датащи(HTML) 49 Page - SMSC Corporation |
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49 / 68 page  SMSC DS – LAN91C100FD REV. B Page 49 Rev. 05/31/2000 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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