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ST62P25C Datasheet(PDF) 9 Page - STMicroelectronics |
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ST62P25C Datasheet(HTML) 9 Page - STMicroelectronics |
9 / 105 page ST6215C/ST6225C 9/105 3 MEMORY MAPS, PROGRAMMING MODES AND OPTION BYTES 3.1 MEMORY AND REGISTER MAPS 3.1.1 Introduction The MCU operates in three separate memory spaces: Program space, Data space, and Stack space. Operation in these three memory spaces is described in the following paragraphs. Briefly, Program space contains user program code in OTP and user vectors; Data space con- tains user data in RAM and in OTP, and Stack space accommodates six levels of stack for sub- routine and interrupt service routine nesting. Figure 3. Memory Addressing Diagram PROGRAM SPACE PROGRAM INTERRUPT & RESET VECTORS ACCUMULATOR RAM X REGISTER Y REGISTER V REGISTER W REGISTER 000h 03Fh 040h 07Fh 080h 081h 082h 083h 084h 0C0h 0FFh DATA SPACE 000h 0FF0h 0FFFh MEMORY MEMORY WINDOW DATA READ-ONLY RESERVED HARDWARE CONTROL REGISTERS 0BFh (see Table 2) (see Figure 4 on page 10) 1 |
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