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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SLRC400 датащи(PDF) 13 Page - NXP Semiconductors |
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SLRC400 датащи(HTML) 13 Page - NXP Semiconductors |
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13 / 130 page  Philips Semiconductors Product Specification Rev. 2.0 November 2001 I •CODE Reader IC SL RC400 13 Preliminary 4.3 Connection to Different µ-Processor Types The connection to different µ-Processor types is shown in the following table: Parallel Interface Type Separated Read/Write Strobe Common Read/Write Strobe SL RC400 Dedicated Address Bus Multiplexed Address Bus Dedicated Address Bus Multiplexed Address Bus Multiplexed Address Bus with Handshake ALE HIGH ALE HIGH AS nAStrb A2 A2 LOW A2 LOW HIGH A1 A1 HIGH A1 HIGH HIGH A0 A0 HIGH A0 LOW nWait NRD NRD NRD NDS NDS nDStrb NWR NWR NWR R/NW R/NW nWrite NCS NCS NCS NCS NCS LOW D7 ... D0 D7 ... D0 AD7 ... AD0 D7 ... D0 AD7 ... AD0 AD7 ... AD0 Table 4-2: Connection Scheme for Detecting the Parallel Interface Type 4.3.1 SEPARATED READ/WRITE STROBE: INTEL TYPE COMPATIBLE For timing specification refer to chapter 19.5.2.1. SL RC400 NCS A2 A1 A0 D0...D7 ALE NRD NWR Address Decoder Non Multiplexed Address Multiplexed Address/Data (AD0...AD7) Address Latch Enable (ALE) LOW HIGH HIGH SL RC400 NCS D0...D7 ALE NRD NWR Address Decoder Address Bus (A3...An) Data Bus (D0...D7) HIGH Read Strobe (NRD) Write Strobe (NWR) Read Strobe (NRD) Write Strobe (NWR) A0...A2 Address Bus (A0...A2) Figure 4-1: Connection to µ-Processors with Separated Read/Write Strobes |
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