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ELANSC310 bảng dữ liệu(PDF) 116 Page - Advanced Micro Devices |
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ELANSC310 bảng dữ liệu(HTML) 116 Page - Advanced Micro Devices |
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116 / 119 page ![]() 116 Élan™SC310 Microcontroller Data Sheet PREL IMINARY Notes: The appropriate timings above are valid for the Bidirectional Parallel Port mode also. Timings t13 and t14 are also valid for the Unidirectional Parallel Port mode. (PPDCS is PPWDE in Unidirectional mode.) Table 60. EPP Data Register Write Cycle (See Figure 49) Symbol Parameter Description Max Min Units t0 AFDT delay from IOW active 8.4 4.9 ns t1 AFDT delay from PPDCS active 1.8 1.1 ns t2 AFDT delay from PPOEN active 1.0 0.8 ns t3 AFDT active pulse width (no wait states added) 450 448 ns t4 AFDT High to Low recovery 1000 ns t5 AFDT Low to STRB Low –0.2 ns t6 STRB delay from PPDCS active 1.6 0.9 ns t7 STRB delay from PPOEN active 0.8 0.6 ns t8 AFDT High to STRB High delay –2.4 –1.4 ns t9 STRB Low to data valid delay 3.7 ns t10 STRB High to data valid hold 4.0 ns t11 PPOEN delay from IOW active 7.4 ns t12 PPOEN delay from IOW inactive 1.1 ns t13 PPDCS delay from IOW active 6.6 ns t14 PPDCS delay from IOW inactive 4.3 ns t15 AFDT hold from BUSY High 139 129 ns t16 BUSY Low delay from AFDT active 307 ns t3 t1 t2 t0 t15 t4 t5 t7 t8 t9 t10 t16 t11 t12 t13 t14 Valid Data AFDT STRB D7–D0 BUSY PPOEN PPDCS IOW IOR t6 Figure 49. EPP Data Register Write Cycle |
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