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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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ST72F521 Arkusz danych(PDF) 14 Page - STMicroelectronics |
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ST72F521 Arkusz danych(HTML) 14 Page - STMicroelectronics |
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14 / 215 page  ST72F521, ST72521B 14/215 3 REGISTER & MEMORY MAP As shown in Figure 4, the MCU is capable of ad- dressing 64K bytes of memories and I/O registers. The available memory locations consist of 128 bytes of register locations, up to 2Kbytes of RAM and up to 60Kbytes of user program memory. The RAM space includes up to 256 bytes for the stack from 0100h to 01FFh. The highest address bytes contain the user reset and interrupt vectors. IMPORTANT: Memory locations marked as “Re- served” must never be accessed. Accessing a re- seved area can have unpredictable effects on the device. Related Documentation AN 985: Executing Code in ST7 RAM Figure 4. Memory Map 0000h RAM Program Memory (60K or 32K) Interrupt & Reset Vectors HW Registers 0080h 007Fh 0FFFh (see Table 2) 1000h FFDFh FFE0h FFFFh (see Table 7) 0880h Reserved 087Fh Short Addressing RAM (zero page) 256 Bytes Stack 16-bit Addressing RAM 0100h 01FFh 0080h 0200h 00FFh or 087Fh 32 KBytes 8000h 60 KBytes FFFFh 1000h (2048 or 1024 Bytes) or 067Fh or 047Fh |
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