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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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HD64F2149YV 数据表(PDF) 102 Page - Renesas Technology Corp |
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HD64F2149YV 数据表(HTML) 102 Page - Renesas Technology Corp |
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102 / 1075 page  Section 2 CPU Rev. 3.00 Jan 18, 2006 page 74 of 1044 REJ09B0280-0300 2.9.3 On-Chip Supporting Module Access Timing (Internal I/O Register 1 and 2) The on-chip supporting modules (Internal I/O Register 1 and 2) are accessed in two states. The data bus is either 8 bits or 16 bits wide, depending on the particular internal I/O register being accessed. Figure 2.19 shows the access timing for the on-chip supporting modules (Internal I/O Register 1 and 2). Figure 2.20 shows the pin states. Bus cycle T1 T2 Address Read data Write data Internal read signal Internal data bus Internal write signal Internal data bus Read access Write access Internal address bus φ Figure 2.19 On-Chip Supporting Module (Internal I/O Register 1 and 2)Access Cycle |
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