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数据搜索系统，热门电子元器件搜索 |
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ST90R158 数据表(PDF) 39 Page - STMicroelectronics |
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ST90R158 数据表(HTML) 39 Page - STMicroelectronics |
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39 / 190 page  39/190 ST90158 - REGISTER AND MEMORY MAP 3.3 MEMORY MAP Figure 18. Memory Map 010000h 00FFFFh 00C000h 00BFFFh 008000h 007FFFh 004000h 000000h 003FFFh PAGE 0 - 16 Kbytes PAGE 1 - 16 Kbytes PAGE 2 - 16 Kbytes PAGE 3 - 16 Kbytes 200000h 22FFFFh 20C000h 20BFFFh 208000h 207FFFh 204000h 203FFFh PAGE 80 - 16 Kbytes PAGE 81 - 16 Kbytes PAGE 82 - 16 Kbytes PAGE 83 - 16 Kbytes External Memory Reserved External Memory SEGMENTS 21h and 22h 128 Kbytes (external ROM on 20FFFFh 230000h 3FFFFFh Lower Memory (usually ROM/EPROM mapped Upper Memory (usually RAM mapped 210000h Note: The total amount of directly addressable external memory is 64 Kbytes. in Segment 1) in Segment 23h) 1FFFFFh 000000 h 003FFFh ROM 16 Kbytes Internal 24 Kbytes 32 Kbytes 48 Kbytes 64 Kbytes 00FFFFh 007FFFh 00BFFFh 00FFFFh RAM 512 bytes Internal 768 bytes 1 Kbytes 1.5 Kbytes 2 Kbytes 20F800h 20FA00h 20FC00h 20FD00h 20FE00h 20FFFFh 64 Kbytes SEGMENT 0 64 Kbytes SEGMENT 20h Internal ROM/EPROM ROMless devices) 9 |
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