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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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H8S/2225 数据表(PDF) 841 Page - Renesas Technology Corp |
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H8S/2225 数据表(HTML) 841 Page - Renesas Technology Corp |
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841 / 1071 page  Section 22 PROM Rev. 5.00 Aug 08, 2006 page 755 of 982 REJ09B0054-0500 Section 22 PROM The PROM version can be set to PROM mode and programmed with a PROM programmer. 22.1 PROM Mode Setting The PROM version (HD6472237) suspends its microcomputer functions when placed in PROM mode, enabling the on-chip PROM to be programmed. This programming can be done with a PROM programmer set up in the same way as for the HN27C101 (VPP = 12.5 V) EPROM. Use of a socket adapter to convert from 100 pins to 32 pins enables programming with a commercial PROM programmer. Caution is required when selecting the PROM programmer, as this LSI does not support page mode. Table 22.1 shows how PROM mode is selected. Table 22.1 Selecting PROM Mode Pin Names Setting MD2, MD1, MD0 Low STBY PA2, PA1 High 22.2 Socket Adapter and Memory Map Programs can be written and verified by attaching a socket adapter to convert from 100 pins to 32 pins to the PROM programmer. Figure 22.1 shows the wiring of the socket adapter, and table 22.2 gives ordering information for the socket adapter. Figure 22.2 shows the memory map in PROM mode. |
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