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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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M66596FP датащи(PDF) 108 Page - Renesas Technology Corp |
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M66596FP датащи(HTML) 108 Page - Renesas Technology Corp |
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108 / 131 page  M66596FP/WG rev .1.00 2006.3.14 page 108 of 127 4.9.2 CPU access timing (when a multiplex bus is set) 4.9.2.1 CPU access write timing (when a multiplex bus is set) tw (cycle) 47 Note 2-1 AD6-AD1 / D15-D0 CS_N WR1_N, WR0_N Note 2-2 ALE tsu (A - ALE) 32 th (A - ALE) 35 tsu (D) 43 th (D) 44 tw (ALE) 36 tdwr (ALE - CTRL) 37 tw (CTRL) 39 trec (ALE) 38 Note 2-4 Address determinatio Data determination Address determination 4.9.2.2 CPU access read timing (when a multiplex bus is set) tw (cycle) 47 Note 2-1 32 CS_N RD_N Note 2-3 ALE tsu (A - ALE) th (A - ALE) 35 tw (ALE) 36 tdwr (ALE - CTRL) 37 ten (CTRL - D) 5 ta (CTRL - D) 3 tv (CTRL - D) 4 tdis (CTRL - D) 6 twr (CTRL) 42 trec (ALE) 38 Note 2-4 Data determination Address determination Address determination AD6-AD1 / D15-D0 Note 2-1: tw (cycle) and trec (CTRL) are necessary when accessing the FIFO. Note 2-2: The control signal when writing data is a combination of CS_N, WR1_N, and WR0_N. Note 2-3: The control signal when reading data is a combination of CS_N and RD_N. Note 2-4: RD_N, WR0_N and WR1_N should not be timed to fall at the same time that CS_N is rising. Similarly, CS_N should not be timed to fall at the same timing that RD_N, WR0_N and WR1_N are rising. In the instances noted above, an interval of at least 10 ns must be left open. |
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