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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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H8/3003 数据表(PDF) 713 Page - Renesas Technology Corp |
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H8/3003 数据表(HTML) 713 Page - Renesas Technology Corp |
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713 / 715 page  Reset in T3 State: Figure D-3 is a timing diagram for the case in which RES goes low during the T3 state of an external memory access cycle. As soon as RES goes low, all ports are initialized to the input state. AS, RD, HWR, and LWR go high, and the data bus goes to the high-impedance state. The address bus outputs are held during the T3 state.The same timing applies when a reset occurs in the T2 state of an access cycle to a two-state-access area. Figure D-3 Reset during Memory Access (Reset during T3 State) ø Address bus CS CS to CS RD (read access) HWR, LWR Data bus I/O port 0 71 RES AS High impedance High impedance High impedance Internal reset signal Access to external address T1 T2 T3 (write access) (write access) H'000000 695 |
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