Fujitsu MPD3173AT Product Manual - Page 152
Recovery time of DIOR-/DIOW
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5.6 Timing 5.6.1 PIO data transfer Figure 5.8 shows of the data transfer timing between the device and the host system. t0 Addresses DIOR-/DIOW- Write data DD0-DD15 t1 t2 t9 t2i t3 t4 Read data DD0-DD15 IORDY t5 t10 t6 t11 t12 Symbol Timing parameter t0 Cycle time t1 Data register selection setup time for DIOR-/DIOW- t2 Pulse width of DIOR-/DIOW- t2i Recovery time of DIOR-/DIOW- t3 Data setup time for DIOW- t4 Data hold time for DIOW- t5 Time from DIOR- assertion to read data available t6 Data hold time for DIOR- t9 Data register selection hold time for DIOR-/DIOW- t10 Time from DIOR-/DIOW- assertion to IORDY "low" level t11 Time from validity of read data to IORDY "high" level t12 Pulse width of IORDY Figure 5.8 PIO data transfer timing Min. Max. Unit 120 - ns 25 - ns 70 - ns 25 - ns 20 - ns 10 - ns - 50 ns 5- ns 10 - ns - 35 ns 0- ns - 1,250 ns C141-E069-02EN 5 - 85
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