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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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DM9102AT датащи(PDF) 66 Page - List of Unclassifed Manufacturers |
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DM9102AT датащи(HTML) 66 Page - List of Unclassifed Manufacturers |
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66 / 77 page  DM9102A Single Chip Fast Ethernet NIC controller 66 Final Version: DM9102A-DS-F03 August 28, 2000 External MII/SRL Interface DM9102A provides one external MII/SRL interface sharing with all the pins with Boot ROM interface. This external MII/SRL interface can be connected with external PHYceiver such as Home Networking PHYceiver or other future technology applications. This external MII/SRL interface can be set up by hardware and software. The setup methods are listed as below: Test 1 (pin 75) Test 2 (pin 71) Clkrun# (pin 36) MA8 (pin 84) MA9 (pin 85) Normal Operation 01 X X X External MII mode 00 0 0 1/0 Note 1 External SRL mode 00 0 1 1/0 Note 2 Internal Test mode 1X X X X Note 1: External MII mode MA9 = 1 (Set up by harware; Mode cannot be changed.) MA9 = 0 & MII_Mode = 1 (Select external MII interface; Mode can be changed by software.) Where MII_Mode is the bit 18 of CR6. Note 2: External MII mode: MA9 = 1 (Set up by harware; Mode cannot be changed.) MA9 = 0 & MII_Mode = 0 (Select external SRL interface; Mode can be changed by software.) The Sharing Pin Table (o): output, (i): input, (b): bi-direction Normal Operation External MII/SRL Interface Boot ROM Mux mode Boot ROM Dir mode External MII interface External SRL interface MA6 = 0 MA6 = 1 MA8 = 0 MA8 = 1 Pin 62 BPAD0 MD0/DI MII_TXD3 (o) BPAD0 63 BPAD1 MD1 MII_TXD2 (o) BPAD1 64 BPAD2 MD2 MII_TXD1 (o) BPAD2 65 BPAD3 MD3 MII_RXER (i) BPAD3 66 BPAD4 MD4 MII_RXDV (i) BPAD4 67 BPAD5 MD5 MII_RXD1 (i) BPAD5 68 BPAD6 MD6 MII_RXD2 (i) BPAD6 69 BPAD7 MD7 MII_MDIO (b) BPAD7 72 BPCS# ROMCS MII_MDC (o) BPCS# 73 BPA0 MA0 NC BPA0 74 BPA1 MA1 MII_RXD (i) BPA1 77 EEDI MA2 EEDI (i) EEDI (i) 78 EEDO MA3/DO EEDO (o) EEDO (o) 79 EECK MA4/CK EECK (o) EECK (o) 80 EECS MA5 EECS (o) EECS (o) 81 MA6 MII_COL (i) SRL_COL (i) 83 MA7 MII_TXCLK (i) SRL_TXC (i) 84 MA8 MII_TXEN (o) SRL_TXE (o) |
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