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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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H8/3028F 数据表(PDF) 621 Page - Renesas Technology Corp |
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H8/3028F 数据表(HTML) 621 Page - Renesas Technology Corp |
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621 / 923 page  Rev. 2.00, 09/03, page 591 of 890 18.5 On-Board Programming Mode When pins are set to on-board programming mode and a reset-start is executed, the chip enters the on-board programming state in which on-chip flash memory programming, erasing, and verifying can be carried out. There are two operating modes in this mode—boot mode and user program mode. The pin settings for entering each mode are shown in table 18.6. For a diagram of the transitions to the various flash memory modes, see figure 18.2. Boot mode and user program mode cannot be used in the H8/3028F-ZTAT’s mode 6 (on-chip ROM enabled). Table 18.6 On-Board Programming Mode Settings Mode FWE MD2 MD1 MD0 Boot mode Mode 5 1* 1 0* 2 01 Mode 7 0* 2 11 User program mode Mode 5 1 0 1 Mode 7 1 1 1 Notes: 1. For the High level input timing, see items 6 and 7 of Notes on Use of Boot Mode. 2. In boot mode, the MD2 setting should be the inverse of the input. In the boot mode in the H8/3028F-ZTAT, the levels of the mode pins (MD2 to MD0) are reflected in mode select bits 2 to 0 (MDS2 to MDS0) in the mode control register (MDCR). |
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