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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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ST7232AJ2BB Fiches technique(PDF) 13 Page - STMicroelectronics |
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ST7232AJ2BB Fiches technique(HTML) 13 Page - STMicroelectronics |
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13 / 157 page  ST7232A 13/157 3 REGISTER & MEMORY MAP As shown in Figure 5, 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 384 bytes of RAM and up to 8 Kbytes 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- served area can have unpredictable effects on the device. Figure 5. Memory Map 0000h RAM Program Memory (4K or 8K) Interrupt & Reset Vectors HW Registers 0080h 007Fh (see Table 2) E000h FFDFh FFE0h FFFFh (see Table 8) 0480h Reserved 047Fh Short Addressing RAM (zero page) 256 Bytes Stack Reserved 0100h 01FFh 027Fh 0080h 0200h 00FFh or 047Fh (384 Bytes) FFFFh 8 KBytes 4 Kbytes F000h E000h 1 |
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